250 results about "Coal slurry" patented technology

The invention relates to the technical field of coal water slurry additive processing, and particularly discloses a heat exchange device for coal water slurry additive processing, which comprises a reaction kettle, an overhaul bin gate, a rotary sealing mechanism, a first stirring mechanism, a second stirring mechanism, a feeding pipe and a discharging pipe, and the overhaul bin gate is hinged to the front side of the reaction kettle to realize sealed opening and closing. According to the invention, integration of stirring and heat exchange functions and efficient removal of a source of reaction heat are realized; meanwhile, the second stirring mechanism realizes stepless regulation and control of the angles of stirring blades through a built-in electric driving assembly, so that the core technical problems of flowing dead zones, scaling and incapability of adapting to process changes caused by low heat exchange efficiency and function splitting of a traditional device are solved, and the device has the effects of high heat exchange efficiency, deposition prevention, self-cleaning and dynamic and adjustable stirring force.

The invention discloses a coal chemical industry drum screen cleaning structure and an operation method, and relates to the technical field of drum screens. The coal chemical industry drum screen cleaning structure comprises a mounting base, the upper end of the mounting base is fixedly connected with a lower shell, the lower end of the lower shell extends to the lower end of the mounting base, the upper end of the lower shell is provided with an upper cover, and the right side of the upper end of the mounting base is fixedly connected with a gear motor; the output end of the gear motor penetrates into the lower shell and is fixedly connected with a rotating shaft, and the surface of the rotating shaft is fixedly connected with an annular support. The rotary screen solves the problems that an existing rotary screen is not provided with a cleaning structure, when people use the rotary screen for a long time, solid materials contained in coal slurry materials can be clamped in screen holes in a rotary screen net, screening of the coal slurry materials can be affected if cleaning is not conducted in time, the rotary screen net is manually detached and cleaned in a traditional cleaning mode, and cleaning is not conducted. The technical problems that time and labor are wasted during disassembly and assembly, and production efficiency is affected are solved.

The utility model relates to a device for producing hydrogen by electrolyzing water, in particular to a device for producing hydrogen by electrolyzing water through iron-based circulation assistance. The utility model aims to solve the problems of large electrolytic solution resistance, high equipment complexity and pipeline blockage in the existing water electrolysis technology. The utility model discloses a device for iron-based circulation assisted water electrolysis hydrogen production. The device comprises an electrolyte tank, an ion exchanger, a circulating pump, a transformer, a rectifier, an electrolytic bath, a first compressor, a second compressor, a high-pressure storage tank, a gas storage tank, a plurality of dryers, a cathode, an anode and a proton exchange membrane. According to the utility model, the design of the carbon powder dispensing electrode is adopted to replace the suspension state of coal slurry, and meanwhile, the one-step electrolysis design and the efficient circulation auxiliary module are combined, so that the solution resistance and the equipment complexity are obviously reduced, and the problem of pipeline blockage is solved; the iron-based circulating auxiliary water electrolysis hydrogen production device is efficient, low in power consumption, stable and reliable, and is suitable for large-scale industrial popularization.

The utility model relates to the technical field of coal chemical industry, in particular to a device for simulating scaling stability in a coal-oil slurry transportation process. Comprising a coal-oil slurry stirring tank connected with a high-pressure hydrogen pipe, the coal-oil slurry stirring tank is connected with one end of a simulation conveying pipe through a feeding pipe, the other end of the simulation conveying pipe is connected with a coal-oil slurry buffer tank through a discharging pipe, the coal-oil slurry buffer tank is connected with the coal-oil slurry stirring tank through a circulating pipe, and a coal-oil slurry circulating pump is arranged on the circulating pipe; an oil-coal-slurry conveying pump is arranged on the feeding pipe, the feeding pipe is connected with a plurality of feeding branch pipes, each feeding branch pipe is provided with a branch pipe valve and a branch pipe flowmeter, the discharging pipe is connected with a plurality of discharging branch pipes, and the two ends of a plurality of simulation conveying pipes with different inner diameters are connected with the feeding pipe and the discharging pipe through the feeding branch pipes and the discharging branch pipes respectively. A plurality of pressure gauges are arranged on the simulation conveying pipe at intervals, and a heat tracing sleeve is arranged outside the simulation conveying pipe. The device is reasonable in structural arrangement, and is favorable for mastering the scaling risk of the coal-oil slurry in advance in the production process so as to carry out response treatment in time.

The utility model discloses a spiral-flow type coal water slurry process burner. The spiral-flow type coal water slurry process burner comprises a three-channel structure, the three-channel structure sequentially comprises a central oxygen channel, a coal water slurry channel and an outer epoxy channel from inside to outside; the central oxygen channel, the coal water slurry channel and the outer epoxy channel are connected through flanges; a cooling water assembly is arranged on the outer side of the outer epoxy channel; a central oxygen cyclone is fixed on the inner wall of the central oxygen channel and comprises a cyclone bracket and a first cyclone sheet; one end, far away from the burner head, of the rotational flow bracket is in a pointed cone shape; the first swirl piece is formed by stretching a first end face along a curve, and a first adjacent side face of the first swirl piece is fixedly connected with the swirl support. Through a rotational flow form, the mixing effect of oxygen and coal water slurry is enhanced, and the purpose of sufficient mixed combustion is achieved, so that the carbon conversion rate is improved, the yield of carbon monoxide and hydrogen serving as main components in the period of validity is improved, efficient and clean utilization of coal resources is realized, and the production cost is reduced.

This invention relates to the field of pulverized coal conveying and dust removal technology, specifically to a pulverized coal dust removal method, comprising: S1: Constructing a dust removal system: setting up a dust cover on a conveyor belt, setting up a pressure-reducing chamber on the dust cover, installing wear-resistant baffles at the bottom of the dust cover, and installing a dust curtain inside the dust cover; installing a dust collector at the top of the dust cover; S2: Coal conveying and primary dust removal: starting the conveyor belt to transport coal, the coal falls onto the conveyor belt, and the generated dust-laden gas forms a local high-pressure zone under the obstruction of the dust curtain, causing a portion of the dust-laden gas to undergo primary filtration through the filter components on the pressure-reducing chamber; S3: Secondary dust removal: the remaining dust-laden gas in the dust cover is sucked into the dust collector, the dust-laden gas enters below the liquid surface of the dust collector, causing the pulverized coal particles to settle and form coal slurry, which is then transported outside the dust collector, and the purified gas is discharged through the outlet. This method achieves closed-loop control of the entire process from source dust suppression to end-of-pipe treatment through two-stage synergistic dust removal, improving the dust removal effect.

The utility model discloses an abrasion -resistant coal water slurry feed diaphragm pump relates to coal water slurry conveying technical field, including fixed base, four pump body housings are fixedly connected through the fixed stand on the fixed base, both ends of each pump body housing are fixedly connected with fixed end cover in thread, and both sides fixed end cover correspond fixedly connected with inner hose diaphragm and outer hose diaphragm between pump body housing inner chamber, the inner hose diaphragm is inserted to the center of outer hose diaphragm, and one side fixed end cover is buried with pressure sensor between annular gap end position between inner hose diaphragm and outer hose diaphragm, and the structure of double hose diaphragm makes the coal water slurry that is transported only with inner hose diaphragm inside and modular one -way valve contact, and is completely isolated with the pump cavity of pump body housing. Effectively avoid the corrosion and abrasion of the pump cavity of pump body housing to coal water slurry. The deformation of inner hose diaphragm and outer hose diaphragm is closer to the expansion and shrinkage of radial, avoids stress concentration, and makes fatigue life greatly improve.

The invention provides an ultrasonic particle size detection system for coal slurry. The ultrasonic particle size detection system comprises a fixed frame; a coal slurry container; a stirring device; a degassing device; a particle size detection device; a signal generator and an oscilloscope. The invention provides a coal slurry ultrasonic particle size detection method. The coal slurry ultrasonic particle size detection method comprises the following steps: carrying out ultrasonic particle size detection on clear water to obtain a clear water attenuation amplitude; performing ultrasonic particle size detection on the coal slurry subjected to degassing treatment to obtain a coal slurry attenuation amplitude; calculating a coal slurry ultrasonic attenuation coefficient according to the clear water attenuation amplitude and the coal slurry attenuation amplitude; and performing inversion on the coal slurry ultrasonic attenuation coefficient by utilizing Monte Carlo simulation prediction and a particle swarm optimization method to obtain the coal slurry ultrasonic particle size distribution. According to the invention, coal slurry degassing and granularity detection are systematically realized, and the problems of difficulty in online detection of coal slurry granularity and bubble interference are fundamentally solved.

This invention discloses a wastewater treatment control device, belonging to the field of underground coal mine wastewater treatment technology. It includes a vibrating screen mechanism and a water tank. The vibrating screen mechanism is used for primary solid-liquid separation of coal slurry water. A rotating mechanism driven by a linear drive mechanism is provided between the vibrating screen mechanism and the water tank. This rotating mechanism includes a partition section for dividing the water tank into a turbid water zone and a clear water zone, and for secondary separation of fine coal slurry particles, enabling the discharge of coal slurry from the turbid water zone and the underground utilization of the water from the clear water zone. This invention utilizes a multi-stage treatment process consisting of vibrating screening and dynamic zoned sedimentation to complete the entire process from coarse particle separation to fine particle settling and clarification underground, achieving on-site reuse of clear water and significantly reducing hoisting costs and surface treatment load. The adjustable partition plate, as a secondary treatment unit, can dynamically adjust the volume of the clear and turbid water zones, ensuring water quality stability and system shock resistance. The stirring and scraping mechanism can automatically clean the water tank and screen, reducing the burden of subsequent manual sludge removal.

The invention relates to the technical field of coal slime treatment, and discloses a desliming grading device for flotation, which comprises a conical hopper main body and a slurry feeding pipe, and further comprises a fine silt floating area, a coarse particle settling area and a buffer shunting mechanism, the buffer shunting mechanism comprises a buffer cone arranged below the slurry feeding pipe, and the outer part of the buffer cone is fixedly connected with a buffer cylinder; slurry feeding openings are formed in the outer portion of the buffering cylinder at equal intervals, a connecting piece is arranged at the top of the buffering cylinder, and the water feeding mechanism is arranged at the junction of the fine silt floating area and the coarse particle settling area. Coal slurry fed through the slurry feeding pipe can fall on the buffer cone and is shunted along the conical surface, one part of the coal slurry shunted along the conical surface enters the buffer cylinder to be retarded, and the other part of the coal slurry is obliquely output into a fine silt floating area through the circumferential slurry feeding port, so that the coal slurry is discharged from the buffer cylinder to the fine silt floating area. The coal slurry entering after being buffered and shunted by the buffer cone and the buffer cylinder can reduce the impact on a coarse particle settling area and the damage to an ascending water flow field, so that the desliming and grading effects are improved.

The invention discloses carboxyalkylated lignin as well as a preparation method and application thereof in coal gasification wastewater coal slurry, and belongs to the technical field of coal water slurry. The carboxyalkylated lignin with a three-dimensional structure is obtained by introducing a carboxyalkyl branched chain into a lignin structure through a graft copolymerization method. The preparation method comprises the following steps: dissolving lignin in deionized water or isopropanol, adjusting the pH value to 11-12, adding a reaction reagent with a carboxyl functional group and an alkyl chain, and reacting in a water bath at 60-80 DEG C for 2-4 hours; then adjusting the pH value to 6-7; and washing, centrifuging and purifying to obtain the carboxyalkylated lignin. Carboxyalkylated lignin is used as a dispersing agent to be applied to a system for preparing coal water slurry from coal gasification wastewater, coal particles can be fully dispersed and stabilized in a complex coal gasification wastewater system by using fewer adsorption sites, and the carboxyalkylated lignin can be used as the dispersing agent to remarkably improve the slurrying performance and long-term stability of coal gasification wastewater coal slurry.

1. Name of the product in this design: Dual-drive vibrating spiral coal-water separation equipment. 2. Application of this design: It is used in scenarios such as coal mine drilling and underground coal mining operations. Its core function is to efficiently separate and filter the coal slurry-water mixture generated during the drilling process to ensure that the water quality meets the standards for discharge or recycling. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The utility model relates to a raw coal conveying and dewatering device which comprises a linear vibrating screen arranged at the tail of a raw coal main conveying belt and used for conducting primary screening on conveyed raw coal and throwing screened large-particle raw coal into the main conveying belt to be conveyed out. The small-particle-containing raw coal slurry falls into a sedimentation tank; the slurry pump is placed in the sedimentation tank and used for stirring and sucking raw coal slurry in the sedimentation tank and conveying the raw coal slurry to the solid-liquid separator, and a discharging port of the slurry pump is connected with a feeding port of the solid-liquid separator through a pipeline; the solid-liquid separator is erected above the main conveying belt and used for conducting secondary screening and dewatering on the raw coal slurry conveyed by the slurry pump and throwing screened solid raw coal particles into the main conveying belt to be conveyed out, and remaining slurry water is conveyed to a designated place. The dehydration problem of raw coal in the transportation process can be solved, the applicability is high, the conveying capacity is large, the dehydration effect is good, and the problem of on-site production halt caused by large water content of the raw coal is solved.

The present invention relates to a drying apparatus for evaporating volatile constituents from a starting material to be dried, to a process for producing an isocyanate using this drying apparatus and to the use of the drying apparatus for drying distillation bottoms streams, oil-containing waste, waste paint or coating materials, sewage sludges, mineral substances and coal slurries contaminated with organic compounds. In the drying apparatus the evaporated constituents (vapours) are passed into a condenser via a vapor dome and a vapor conduit. The drying apparatus has the feature that partial condensation of the vapours in the vapor dome and / or in the vapor conduit is intentionally allowed or induced during operation, and condensed constituents of the vapours are discharged from the drying apparatus via means installed for this purpose in the vapor dome and / or the vapour conduit.

The invention discloses a ball guide for a one-way valve and the one-way valve, belongs to the technical field of displacement pumps of fluid machinery, solves the technical problems that the ball guide is complex in structure and difficult to manufacture, and comprises a guide end, a guide cavity and a mounting end which are integrally formed. The guide end is used for guiding the valve ball to return, and the installation end is matched with the one-way valve seat and used for ball guide installation. The inner diameter of the guide cavity is in radial clearance fit with the diameter of the valve ball, flow guide window holes are formed in the cylinder wall of the guide cavity, and the total overflowing area of the flow guide window holes is larger than the sectional area of an inlet of the one-way valve. The one-way valve comprises a ball guide which is used for guiding the valve ball. The diaphragm pump is used for conveying coal water slurry or ore pulp.

The invention provides a coal water slag metering device based on a crushing mechanism. The coal water slag metering device comprises a metering device body, and a motor is mounted on the metering device body; the metering device body is further provided with a flow adjusting hand wheel. A detection pipe is fixedly connected to an opening in one side of an output pipe of the metering device body, a particle sensor is fixedly connected to the top end of the detection pipe, and a smashing mechanism is fixedly connected to an input pipe of the metering device body. Through the arrangement of the protective cover, the cooling fins, the inlet and outlet pipe, the rotating machine core, the crushing motor, the roller ball sleeve and the grinding roller ball, large-particle coal slag in coal slurry can be prevented from entering the metering device, and normal work of the metering device is guaranteed.

The application discloses a production process of potassium fulvate of mineral origin, which uses weathered coal and / or lignite as raw materials, and comprises the following steps: raw coal slurry preparation, ultrasonic-assisted weak-alkali low-temperature closed-loop extraction, double-stage centrifugal separation and solar drying system drying to prepare high-activity potassium fulvate of mineral origin. The extraction is carried out at 45-55 DEG C, pH 11-12, ultrasonic power 3-5 kW and frequency 25-30 kHz for 30-60 min, and the extraction rate of fulvic acid is 65%-75%; the solar drying system is configured with an automatic turning and throwing system, a circulating ventilation system and a meteorological linkage system, and the crude liquid with a water content of 75% is dried to 15% in the whole process without waste water and carbonization. The application has the advantages of high extraction rate, low energy consumption, short time, high product activity, high small molecule content, no residue in full water solution at 25 DEG C and suitability for large-scale clean production.

The utility model discloses a coal slurry sampling device based on a coal transportation pipeline, and relates to the technical field of coal detection, both sides of a cover plate are provided with mounting ports in a penetrating manner, both inner walls of both sides of each mounting port are provided with sliding chutes, both upper ends of both sides of a connecting pipe are provided with connecting grooves, and the inner walls of the opposite sides of the connecting grooves are provided with clamping grooves; the connecting device has the advantages that the stepping motor and the connecting rope are arranged to control the pull rod to move in the mounting opening, so that connection between the clamping block and the clamping groove is controlled, convenient and fast connection and disassembly of the cover plate and the connecting pipe are achieved, operation is simple and efficient, the practicability is high, and the connecting device is suitable for popularization and application. The device is simple in structure and convenient to use, saves time and manpower, can be quickly used without a tool, and can be matched with the electric telescopic rod and the cable on the two sides to drive the sampler, so that the sampler can move in the conveying pipe, coal samples can be collected from different positions, the representativeness of the coal samples is improved, and then the accuracy of coal quality detection is improved.

The utility model discloses an anti-blocking mill discharge chute device, and relates to the technical field of coal slurry chute discharge. At least two side crushing chambers are evenly distributed in the middle of the discharging port along the circumferential side face, crushing parts are rotationally connected into the side crushing chambers, the bottoms of the crushing parts extend to the outer sides of the crushing parts and are fixedly connected with driven wheels, the driven wheels are located on the outer side of the discharging port, and outer wheel parts are rotationally connected between the outer sides of the driven wheels. Supporting rings are arranged at the positions, at the bottoms and the tops of the outer wheel pieces, of the discharging opening and are in rolling connection with the outer wheel pieces on the adjacent sides, and driving motors are arranged on the outer sides of the outer wheel pieces. According to the utility model, the plurality of crushing pieces mounted in the discharge hole are driven from the outside to actively stir the circulating coal slurry, so that the problem of blockage of the discharge hole is avoided on the premise of ensuring the discharge sealing of the discharge hole, and the formation of a secondary deposition point by the anti-blocking structure is avoided.

The application discloses a water coal slurry additive prepared by using industrial by-products, which comprises the following raw material components in parts by weight: amino benzene sulfonic acid 10-20 parts, meta-amino phenol 10-20 parts, sulfite 5-15 parts, a basic adjusting agent in an appropriate amount and water 50-70 parts. The water coal slurry additive is prepared by directly using industrial by-products, realizes resource recycling, and has high slurry concentration, low viscosity, good fluidity and stability.

The utility model discloses a quick closing device for a pneumatic stop valve of a coal water slurry gasification furnace, and belongs to the technical field of pneumatic stop valves in the production process of the coal water slurry gasification furnace. The quick closing device for the pneumatic stop valve of the coal water slurry gasification furnace comprises a filtering pressure reducing valve, the output end of the filtering pressure reducing valve is communicated with a first pipeline, the outer wall of the first pipeline is communicated with a second pipeline, a third pipeline and a sixth pipeline, one end of the second pipeline is communicated with a first pneumatic control valve, and the other end of the second pipeline is communicated with a second pneumatic control valve. One end of the third pipeline is communicated with a second pneumatic control valve, one end of the sixth pipeline is communicated with an electromagnetic valve, one end of the electromagnetic valve is communicated with a fifth pipeline, one end of the fifth pipeline is communicated with a fourth pipeline, and the two ends of the fourth pipeline are communicated with the first pneumatic control valve and the second pneumatic control valve respectively. One end of the first pneumatic control valve and one end of the second pneumatic control valve communicate with air cylinders correspondingly, and one ends of the air cylinders are slidably connected with piston rods.

The flotation tank for the stirring type coal slime flotation device comprises a main body, the outer portion of the main body is fixedly connected with a supporting plate, the outer portion of the supporting plate is fixedly connected with a first motor, the driving end of the first motor is fixedly connected with a rotating wheel, and the inner wall of the main body is rotationally connected with a rotating column. A transmission wheel is fixedly connected to the exterior of the rotating column, a belt is arranged between the rotating wheel and the transmission wheel in a sleeving mode, a plurality of connecting blocks are fixedly connected to the exterior of the rotating column, a shell is fixedly connected to the ends, away from the rotating column, of the connecting blocks, and a push plate is slidably connected to the inner wall of the shell; and the outer part of the push plate is fixedly connected with a push block. According to the utility model, the rubber strip in the shell is in contact with the outside of the main body and can extrude the push plate to compress the spring, so that the rubber strip can smoothly pass through, the foam filtering efficiency is greatly improved, the push block is provided with the filter rod, liquid can flow out from a gap when the foam is scraped, only the foam is left, and the flotation quality and efficiency are effectively improved.

The application discloses a clogging-preventing coal slime kneading and mixing device, which comprises a lower box body, an upper shell body connected to the lower box body, a feeding cylinder communicated with the surface of the upper shell body, a stirring device and a coal slime filter screen arranged in the lower box body, a vibrating device arranged on the coal slime filter screen, and the stirring device and the vibrating device being rotationally connected. A conical first rotating flow plate is arranged in the conical feeding cylinder, so that the coal and water can be fully mixed. Through the cooperation of the second rotating flow plate and the stirring paddle, the kneading and mixing of the coal slime can be fully realized, so that the accumulation of the coal slime is greatly reduced. The vibrating of the coal slime filter screen is realized through the rotation and impact of the cam on the impact peg, and the impact of the impact peg on the rubber ring, so that the clogging risk of the filter screen is greatly reduced. Through the water flushing pipeline, the hollow rotating shaft and the scraper, a channel is formed, and the dilution water can flow out of the water outlet through the channel, so that the coal slime scraped by the scraper from the coal slime filter screen is diluted, so that the coal slime is dispersed and accumulated, the clogging risk of the screen is reduced, and the uniformity of the kneaded and mixed coal slurry is improved.

The invention discloses a pipeline coal conveying pump station in-station allocation system which comprises a belt conveying unit, a raw coal surge bin is arranged at one end of the belt conveying unit, a constant feeder is connected to the output end of the raw coal surge bin, a rod mill is connected to the output section of the constant feeder, a water conveying pump is connected to a water inlet of the rod mill, and a water outlet of the water conveying pump is connected to a water outlet of the constant feeder. A discharge port of the rod mill is connected with a coal slurry buffer tank, the coal slurry buffer tank is sequentially connected with a coal slurry pump and a slurry storage tank group through pipelines, the slurry storage tank group is connected with a slurry feeding pump through a pipeline, and the slurry feeding pump is connected with a diaphragm pump through a pipeline. Meanwhile, the invention further discloses a coal slurry blending method, the liquid levels of the raw coal buffer bin, the coal slurry buffer tank and the slurry storage tank group are detected through the sensors, then all the systems are instructed to operate according to the calculated processing load, dynamic balance among all the systems is achieved, and the phenomena of violent fluctuation of system operation and even shutdown caused by insufficient supply are avoided.

The invention provides a sedimentation filtration type centrifuge feeding coal slurry concentration adjusting system and method.The adjusting system comprises a centrifuge feeding buffer box, a sedimentation filtration type centrifuge and a circulating water pool, and a feeding pipeline of the centrifuge feeding buffer box is provided with a first flow meter and a concentration meter; an outlet of the centrifugal machine feeding buffer box is connected with an inlet of the sedimentation filtering type centrifugal machine, an outlet of the circulating water pool is connected to the centrifugal machine feeding buffer box through a circulating water pipeline, a second flow meter and an electric ball valve are arranged on the circulating water pipeline, and centrifugal liquid of the sedimentation filtering type centrifugal machine is connected to a centrifugal liquid barrel through a pipeline. An outlet of the centrifugal liquid barrel is connected to an inlet of the thickener; an overflow port of the thickener is connected with an inlet of the circulating water tank. Automatic adjustment of the system can be achieved according to changes of the feeding amount and the concentration of the pipeline conveying coal slurry, and human intervention is not needed.

The utility model discloses an eccentric type rotary stirring coal slime processing tank body equipment, it includes tank body, eccentric drive mechanism and stirring subassembly. Tank body is rectangular box structure, is equipped with stirring chamber in the inside, eccentric drive mechanism drives stirring subassembly along non central axis eccentric rotation movement through eccentric wheel and transmission rod, stirring subassembly includes main stirring arm and vice stirring arm, and vice stirring arm can be unfolded or gathered with main stirring arm to adapt to different coal slime characteristics. The application changes stirring force distribution through eccentric rotation, avoids stirring dead angle, improves stirring uniformity, sets up guide vane and auxiliary stirring blade simultaneously and optimizes flow path and shear force distribution, reduces energy consumption. The equipment structure is reasonable, and it is convenient to manufacture and maintain, has higher practicality and popularization value.

The utility model provides a slime water control device. The slime water control device comprises a concentration tank, a slime water dosing device and a slime water dehydration device, the concentration tank comprises a concentration tank body, a liquid inlet pipeline and a coal slime concentration underflow pipe; the slime water dosing device comprises a flowmeter, a densimeter, an interface instrument, a turbidimeter, a dosing device and a controller, the flowmeter is used for acquiring flow information of slime water flowing through the liquid inlet pipeline, the densimeter is used for acquiring density information of the slime water flowing through the liquid inlet pipeline, and the interface instrument is used for acquiring position information of a solid-liquid interface in the concentration tank body; the turbidimeter is used for acquiring information of turbidities of liquids at different depths in the concentration tank body, the dosing device is used for adding medicaments into the concentration tank body, and the controller is used for controlling the dosing device; the coal slime dewatering device is used for collecting and dewatering coal slime. The system can monitor the quality change of slime water in real time, intelligently adjust the dosage through a linear regression model, improve the treatment efficiency and reduce the production cost.

The utility model relates to the technical field of coal water slurry coal gasification, and provides a coal water slurry acceleration device which comprises a start-up fuel gas pipeline, an outer side coal slurry feeding pipeline, a high-pressure nitrogen pipeline and a burner, an upstream stop valve and a downstream stop valve are sequentially arranged on the start-up fuel gas pipeline, and the high-pressure nitrogen pipeline is connected between the upstream stop valve and the downstream stop valve; a start-up fuel gas pipeline and an outer coal slurry feeding pipeline are converged and then connected with an outer coal slurry channel of the burner through a main feeding pipe, one end of a nitrogen branch pipe is connected with a high-pressure nitrogen pipeline, the other end of the nitrogen branch pipe is connected with the start-up fuel gas pipeline located at the downstream of the downstream stop valve, and a nitrogen increasing switch valve is arranged on the nitrogen branch pipe; a first flow meter is arranged on the high-pressure nitrogen pipeline, and a second flow meter is arranged on the outer side coal slurry feeding pipeline. According to the coal water slurry accelerating device, the flow speed of the coal slurry on the outer side is increased, the combustion flame of the coal slurry is prolonged, and a flame black area is enlarged, so that the effects of protecting the burner, preventing the blockage of the coal slurry channel on the outer side and improving the atomization effect of the coal slurry are achieved.

The invention belongs to the technical field of coal briquette crushing, and discloses a multi-stage collaborative crushing device for preparing coal water slurry, which comprises a shell, a first-stage crushing wheel and a second-stage crushing wheel, and further comprises a rotating assembly arranged at the middle end of an inner cavity of the shell; the moving assembly is mounted on the outer side of the shell; the third-stage crushing part is movably connected to the interior of the shell and located below the rotating assembly; wherein the rotating assembly comprises a driving piece arranged on the shell; through cooperation of structures such as a first-stage crushing wheel, a second-stage crushing wheel, a rotating assembly and a third-stage crushing part, coal briquettes are subjected to primary crushing through the first-stage crushing wheel through a feeding port of the shell, crushed coal falls to the top face of a second discharging plate, secondary crushing is conducted through back-and-forth movement of the second discharging plate, and the crushing efficiency is improved. Through mutual cooperation of multi-stage crushing, the crushing effect is greatly improved, meanwhile, multi-functional limitation is conducted on single equipment, and the use cost is reduced.

The application discloses a kind of fine coal slurry unpowered discharge device, including pedestal and for carrying vertical blanking discharge plate, the discharge plate is rotatably connected to the pedestal, and elastic member is also provided between the discharge plate and the pedestal, and fine coal slurry vertical drop on the discharge plate makes the discharge plate swing.The fine coal slurry vertical drop on the discharge plate provided by the application, since the discharge plate is rotatably connected to the pedestal, the gravity generated by the fine coal slurry vertical drop makes the discharge plate swing, one end of the discharge plate swings downward, so that the fine coal slurry falls onto the conveyor belt of the lower conveying mechanism, at this time, the elastic member is used to maintain the discharge plate in an inclined state when not subjected to external force and repeatedly swing when subjected to impact, so that the fine coal slurry does not adhere to the discharge plate.