The process of shale oil production based on Fushun-type oil shale retorting technology is illustrated in Fig. 1, which is mainly divided into oil shale crush, screening, retorting, cooling-separation and recovery.After multiple crushing and screening, fine oil shale particles (diameter less than 8 mm) are transported to the …
The shale crusher is different from the traditional crushing equipment. The crushing chamber is deep, which improves the feeding capacity and output. ... The main equipments have shale jaw crusher with a production time of 5-1100T/H, 5~700T shale cone crushing. 15-350T shale impact crusher, and shale sand making machine, etc. … Details
Shale will generally be mined by conventional room and pillar methods. Crushing is necessary before retorting. Shale is crushed in two stages—primary crushing at the mine and secondary …
In-situ artificial crushing and retorting technology calls for techniques of constructing artificial works underground, crushing the oil shale into small pieces, transporting …
The invention relates to a dry-method preconcentration waste rack discharge-dry distillation process for oil shale. The process comprises the following steps: crushing raw ores of oil shale till the particle size is less than 50-80mm; screening and grading the crushed products by a 10mm sieve; treating the oversized material by an air dense medium dry separator to obtain heavy …
Section 4125. Aggregate for Bituminous Sealcoat 4125.01 DESCRIPTION.. Crushed stone, gravel, or sand. · Must be washed. · Crushed aggregate is required for primary and interstate roadways and may be specified for other projects. · Produce crushed gravel as a separate operation by crushing the gravel particles retained on a screen at least 1/4 inch larger than …
The invention discloses a kind of methods of salinity for measuring shale pore water, the specific steps are as follows: G1. acquires fresh shale core as shale samples first;G2. the hole water in ready shale samples is measured;G3. the dissolved matter of shale samples pore water is then extracted, and obtains the aqueous solution of dissolved matter;G4. the ion concentration in …
We report on the composition of mudrock gases released under vacuum by ball-mill rock crushing and pressure induced fracturing. Nine core samples from organic rich Barnett …
The invention relates to a cold and hot alternating high-speed airflow oil shale crushing device and a method for crushing an oil shale. The device is formed in such manners that an air compressor is connected with an air inlet pipeline through a pipeline via a first valve, an air heater and a second valve; the air compressor is connected with the air inlet pipeline through the …
To enhance the drilling efficiency and extend the service life of PDC (Polycrystalline Diamond Composite) bits in shale formations, this study delves into the rock-breaking …
This study evaluated the potential and environmental benefits of using oil shale residue as a replacement for fine aggregate in concrete through a series of experiments. Initially, the crushing value test confirmed the oil shale residue's value at 16.7%, meeting the load-bearing standards for fine aggregates, thus proving its viability as a complete substitute. …
Potassium-bearing shale is being developed as a potential alternative to potash for use in fertilisers. The first step in this process is to reduce its particle size by crushing. This paper...
caused by proppant deformation, embedment, crushing, and viscoelasticity of the reservoir. In order to obtain more in-depth knowledge of how these factors influence the gas production, a novel approach is proposed to simulate the processes of both hydraulic fracturing and gas production using the extended finite element method (XFEM).
Quantitative calculations of GHG emissions during oil shale crushing were carried out on oil shales from the Yaojie (YJ) and Fushun (FS) mining areas in China. Organic geochemistry, X-ray
In addition, CO2 has a greater absorptive capacity than CH4 and is therefore more difficult to release during the same crushing time. As oil shale is stored for longer periods, residual CH4 will ...
Shale oil extraction is an industrial process for unconventional oil production. This process converts kerogen in oil shale into shale oil by pyrolysis, hydrogenation, or thermal dissolution.
A sintered hollow shale brick containing blind pores is prepared from shale and coal or coal gangue through pulverizing, proportional mixing, stirring, die pressing while deaerating three times, and sintering. It has high strength and less consumption of mortar. ... A kind of production method of shale blind hole hollow sintered brick.
A method for extraction of oil from oil shale in which the shale is first crushed and then classified by a rotating trammel screen into four separate portions of differing longest particle dimension, namely less than 1/4 inch, less than 1/2 inch, less than 3/4 inch and greater than 3/4 inch, with the first three portions being treated while passing through the trammel screen and each portion ...
Write better code with AI Security. Find and fix vulnerabilities
This paper introduces an analytical method for evaluating permeability through pulse decay testing, accounting for the early-stage unstable flow caused by bedding laminae in shale. The method derives a nonlinear governing equation for gas flow within the sample, with an analytical solution obtained by solving this differential equation.
Shale is likely to crumble along microfractures or bedding planes during crushing, and the crushed samples should contain fewer microfractures than the whole rock without crushing. The second kind of method is more likely to …
On the basis of this study, the onsite desorption gas measuring device and testing process for coring shale gas wells are designed, the time-varying shale desorption gas is obtained, and the residual gas of shale is measured by the crushing method. The calculation formula of shale gas content is obtained by fitting the test data, the shale gas ...
The invention provides a shale crushing experimental device capable of considering drill string dynamic vibration and an experimental method. The device comprises a one-layer plate, a drilling pressure detection device, a two-layer plate, a plane thrust ball bearing, a three-layer plate, a clamping device, a torque detection device, a displacement detection device, a data …
The invention discloses a device and a method for comprehensively utilizing oil shale, belonging to the technical field of oil production from oil shale, and the device for comprehensively utilizing the oil shale comprises: the device comprises a crushing station, a drying preheating device, a horizontal pyrolysis device, a gas collection tower, a horizontal calcining device, an oil-gas ...
The present invention relates to a method for extracting V2O5 from vanadium-containing shale by using chlorination evaporation. A technical scheme is as below: first crushing vanadium-containing shale ore, decarbonizing at 650-700 DEG C for 40-60 min, and grinding decarburized shale to particle size less than 0.178mm; carrying out chloridizing roasting on the …
Shale oil has revolutionized the global energy landscape, mostly existing in nanopores. However, there is no method for directly characterizing such a small oil cluster. This paper proposes a novel method for the direct characterization of shale oil at the nanoscale via controllable local charging imaging using electron microscopy. With this method, the potentially movable …
According to the shale crushing device, due to the adoption of the jack device for slow crushing, the operation method is easy and convenient; experimental equipment is low in manufacturing cost; the test cost is low, and equipment is convenient to maintain and low in maintenance cost; the shale crushing device further has the characteristics ...
The present invention relates to a method for extracting V2O5 from vanadium-containing shale by using chlorination evaporation. A technical scheme is as below: first crushing vanadium-containing shale ore, decarbonizing at 650-700 DEG C for 40-60 min, and grinding decarburized shale to particle size less than 0.178mm; carrying out chloridizing roasting on the …
The utility model discloses a shale crushing and screening integrated device for porous brick production, which comprises a crushing device main body, wherein the top surface of the crushing device main body is fixedly communicated with a feed chute, and the surface of the crushing device main body is fixedly provided with a movable assembly.
This study systematically processed oil shale residue through crushing and de-oiling to explore its potential as a substitute for fine aggregate in concrete. Experimental …