68 results about "Tar" patented technology

The utility model discloses a tar residue crushing device, which relates to the technical field of tar residue crushing and comprises a tar residue crushing device body, a first dredging motor is detachably mounted on one side of the top of the tar residue crushing device body, and a stirring rod is detachably mounted at one end of the output end of the first dredging motor. And two sets of stirring plates are detachably installed on the outer side of one end of the stirring rod in a staggered mode, one end of the stirring rod is connected with a connecting pipe in a penetrating mode, one end of the connecting pipe is connected with one side of the tar residue crushing device body in a penetrating mode, and a second dredging motor is detachably installed on the adjacent side of the tar residue crushing device body. According to the tar residue crushing device, the arranged stirring rod is matched with the stirring plate to distribute and dredge tar residues flowing out of the end of the connecting pipe, blockage of the tar residues at the end of the connecting pipe is prevented, the tar residues are screened through the leakage plate and the drainage plate and then drained to the crushing barrel to be crushed, the crushing precision is improved through batch crushing, and the crushing effect is better.

The present invention belongs to the technical field of coal chemical processing, and discloses a coal hydrogasification furnace system and a hydrogasification method of a liquid slag removal moving bed. In the hydrogasification system of the present invention, the gas outlet of the hydrogasifier is sequentially connected to the air inlet of the hydrogen membrane separator through a pressure reducing tank, a chilled water scrubber, and a gas-liquid separator. A hydrogen outlet and a methane-rich outlet are provided on the hydrogen membrane separator, wherein the hydrogen outlet of the hydrogen membrane separator is divided into two paths and connected to the second air inlet and the third air inlet of the hydrogasifier, and the pressure reducing tank, the chilled water scrubber and the liquid outlet of the gas-liquid separator are all connected to a tar collector. The hydrogasification method of the present invention can realize the controllable product components in the process of stabilizing the hydrogasification of coal, enhance the adaptability of raw materials and the diversity of products, and the methane yield and the yield of high light aromatics (BTX, PCXN) are high.

This invention discloses an integrated device for coal tar separation and recovery and electrostatic precipitator in coal gangue decarbonization tail gas, belonging to the field of flue gas treatment technology. It includes a dust collector, a coal tar separation and collection hopper, a radial flow rotary disc tar collector, and an electrostatic precipitator unit. The radial flow rotary disc tar collector is installed in the coal tar separation and collection hopper and includes an inner air-flowing central pipe, an outer pipe, multiple hollow collection discs, and a rotation drive assembly. A jacket is formed between the inner air-flowing central pipe and the outer pipe for introducing a heat exchange medium. The inner cavity of the hollow collection discs communicates with the jacket. A radial exhaust channel for tail gas is provided on the inner air-flowing central pipe. During operation, the heat exchange medium is switched to keep the disc surface at a low temperature during the condensation and collection stage, where tar in the tail gas condenses and adheres to the disc surface. During the desorption and regeneration stage, the heat exchange medium is switched to a high temperature and rotates at high speed, using centrifugal force to throw the tar out and collect it. This achieves anhydrous separation and resource recovery of tar, avoiding tar contamination of the electrostatic precipitator unit.

The invention discloses a multi-energy coupling submerged arc furnace tail gas carbon capture and efficient utilization system which comprises a tail gas purification and pretreatment subsystem used for conducting step-by-step purification treatment on tail gas of a high-temperature submerged arc furnace to remove dust, tar and sulfide; the power generation and waste heat recovery subsystem is used for receiving and storing the purified tail gas, generating power by using the tail gas and recovering waste heat of flue gas generated in the power generation process to generate steam; the alcohol amine method carbon capture subsystem is used for capturing CO2 in the flue gas discharged by the power generation and waste heat recovery subsystem, driving an amine liquid regeneration process by using steam generated by the power generation and waste heat recovery subsystem, and finally outputting purified liquid CO2; and the control system is based on a programmable logic controller or a distributed control system, realizes full-process parameter monitoring and dynamic optimization, and coordinates energy and material flow among the subsystems.

The utility model belongs to tar production processing technical field relates to a kind of tar intermediate tank body including intermediate tank body, feed pipe is equipped on the intermediate tank body, feed pipe is connected with external tar supply pipe, the lower end of intermediate tank body is rotatably installed with conical discharge pipe, driving assembly that is compatible with conical discharge pipe is equipped on the intermediate tank body, the inner wall of conical discharge pipe is equipped with extruding piece, extruding piece is helical, discharge pipe is rotatably connected in the lower end of conical discharge pipe, discharge pipe is connected with external tar depot, conical discharge pipe outside is equipped with heating assembly. The utility model is discharged to internal tar by setting conical structure's conical discharge groove in the lower end of its intermediate tank body, so that it can utilize gravity to accelerate material to slide down, compared with flat bottom, can reduce the retention area of tar in tank bottom, avoid deposition dead angle, while its inside is also equipped with helical extruding piece, rotate with conical discharge pipe, push tar to discharge port, further improve the discharging efficiency of the device.

The utility model discloses a carbonization and activation system for preparing a coal pitch-based porous material, which comprises a high-pressure gas cylinder for outputting a gas source, a gas output end in the high-pressure gas cylinder is connected with an input end of a tubular reactor after being decompressed, and a tail output end of the tubular reactor is connected with an input end of a condenser through a heat tracing pipeline; the bottom output end of the condenser is connected with the product discharge system, the top product output end of the condenser is connected with the adsorption and desorption system, and the top output end of the adsorption and desorption system outputs exhaust gas. The device has the structural characteristics of preventing equipment from being blocked and treating polluted tail gas.

The invention relates to the technical field of stemming refractory materials, and discloses an expansion iron mouth type anhydrous stemming for a blast furnace of more than 2000 cubic meters. The expansion iron mouth type anhydrous stemming comprises the following components in percentage by mass: 3-4% of high-temperature asphalt particles, 13-20% of ferro-silicon nitride, 10-13% of clay, 0.5-2% of carbon black, 3-5% of pyrophyllite, 31-39% of alumina clinker, 13-18% of silicon carbide, 5-7% of coke powder, 1-3% of polyethylene glycol and 12-13% of tar. According to the method, polyethylene glycol 200 is used as a binding agent, the characteristic that the polyethylene glycol 200 forms curing strength at 250-350 DEG C is utilized, the polyethylene glycol 200 and beta resin in high-temperature asphalt powder complete temperature relay to form carbon coke, a balling drum is rapidly stabilized within 15-30 minutes of gun pressing, and the iron notch depth is increased; according to the invention, the problem of strength of the stemming at 250-350 DEG C is effectively solved, good opening strength and enough iron notch depth are realized, the application effect on 2650 m < 3 > and 4000 m < 3 > blast furnaces is good, and the iron notch depth is respectively prolonged by 0.2 m and 0.4 m.

The utility model relates to the technical field of tar dehydration, and provides a tar dehydration device which comprises a heating barrel, sealing plates, a stirring mechanism and an opening and closing mechanism, the heating barrel is provided with a feeding port and two discharging ports, the two discharging ports are both rotatably connected with the sealing plates, the stirring mechanism is arranged in the heating barrel and used for stirring and scraping coal tar, and the opening and closing mechanism is arranged in the heating barrel. The opening and closing mechanism is arranged on the heating barrel and used for controlling the two sealing plates to be opened and closed, and the stirring mechanism comprises a stirring frame, a scraping plate, a transmission assembly and a driving assembly.By means of the technical scheme, the problems that in the related technology, due to the fact that coal tar is thick and is prone to adhering to the interior of the device, discharging is inconvenient, discharging is not thorough, and the coal tar cannot be discharged easily are solved. And the practicability is reduced.

A tar residue box water sealing device comprises a cover plate fixedly arranged at the bottom of a residue outlet pipe, a first upper sealing frame fixedly arranged at the bottom of the cover plate and a first lower sealing frame arranged on the periphery of a residue inlet of a tar residue collecting box, and a first water storage tank used for storing water is formed between the first lower sealing frame and the residue inlet. A water inlet pipe communicated with the interior of the water storage tank is arranged at the bottom of the first lower sealing frame, the water inlet pipe is detachably connected with a first connecting pipe through a first connecting assembly, the first connecting pipe is connected with an external water supply assembly, the water supply assembly is used for injecting water into the first water storage tank, and the bottom end of the first lower sealing frame is inserted into water in the first water storage tank. The water inlet pipe is firmly connected with the first connecting pipe, the situation that the first connecting pipe is separated from the water inlet pipe due to vibration of a pipeline is prevented, water resources are prevented from being wasted due to the fact that water flows out of the first water storage tank, and harmful gas is prevented from escaping.

This invention discloses a process for controlling the water content of tar before the dehydration distillation step in a tar distillation unit, comprising the following steps: S1, raw tar is pumped from a large tar tank to a working tar tank via a tar delivery pipeline. The water content of the raw tar is detected by a moisture meter on the tar delivery pipeline, and based on this, it is determined whether the raw tar should be returned to the tar centrifugal dehydration and slag removal system; S2, the raw tar in the working tar tank is pumped to the tar distillation unit for processing via the working tank outlet delivery pipeline. The water content of the raw tar is detected by a moisture meter on the working tank outlet delivery pipeline, and it is determined whether the raw tar in the working tar tank should be drained. This invention can further reduce the water content of tar before the dehydration distillation step in the tar distillation unit, thereby reducing the production load of the tar dehydration distillation step.

The invention relates to the technical field of tar residue treatment, in particular to mechanical residue removing equipment and process based on a tar residue storage tank, the residue removing equipment comprises the storage tank, a mixture conveying pump, a production unit and a guarantee unit, the mixture conveying pump is an intelligent variable frequency pump, and an outlet of the storage tank is connected with the input end of the mixture conveying pump; a flow detection module is mounted at the joint of the mixture conveying pump and the storage tank and is used for monitoring the flow of the tar residue mixture in real time and feeding back a signal to a control system of the mixture conveying pump; the output end of the mixture conveying pump is connected with the production unit, and the production unit is provided with two output ends, namely a solid output end and a liquid output end; the liquid output end is connected with the guarantee unit, and the guarantee unit comprises a showering system and a steaming and blowing system; the viscosity of the tar residues in the storage tank is greatly reduced through intermittent steaming and blowing softening and synchronous ammonia water spraying, the mixture conveying pump is smooth in pumping, and the problems that the tar residues in the storage tank are left and cannot be cleaned thoroughly are solved.

The utility model relates to the technical field of filtering devices, and discloses a tar residue filtering device which comprises a filtering box, a feeding pipe fixedly penetrates through the top end of the filtering box, two partition plates are fixedly connected to the inner wall of the filtering box, the two partition plates are located on the same vertical plane, and a distance is reserved between the two partition plates. A plurality of heating plates are fixedly connected between the partition plate on the lower side and the filter box and are obliquely arranged; through structures such as a heating plate, a four-way valve, a pipeline, a communicating plate and a nozzle, the effects of drying tar residues, improving drying efficiency, reducing generation of peculiar smell and protecting the environment are achieved, and the problems that in the using process of a traditional device, the tar residues generate peculiar smell, the surrounding environment is damaged by generation of the peculiar smell, and the environmental pollution is caused are solved. And the generated tar residue cannot be directly utilized, so that the resource waste is caused.

The application discloses a method for preparing coal-tar pitch-based porous carbon by using double-salt compounds (K2CO3 and Na2CO3) and potassium hydroxide and application thereof. The pore diameter of the material activated by KOH is adjusted by adding K2CO3 and Na2CO3, and the sputtering and eruption of the sample in the activation process is avoided, and the equipment is not corroded. The application comprises the following steps: after coal tar that is crushed is uniformly mixed with an activating agent, simple one-step activation is carried out at high temperature, wherein the specific surface area of the porous carbon material can reach about 2000 m 2 / g, and the pore volume is between 0.98 and 1.29 cm 3 / g. When the porous carbon material is used as an electrode material of a super capacitor, the material shows high specific capacitance and good rate performance. The application provides a preparation method of high-specific-surface-area porous carbon, and the reaction process is mild.

The application discloses a super-large triad central tube type rotating bed gasification furnace, which comprises a hearth with a gasification section and a dry distillation section, and the wall part of the hearth is provided with an annular channel extending in the circumferential direction; a triad central tube assembly is arranged at a relatively upper position in the dry distillation section and comprises three array tubes arranged in a circumferential array with the hearth central axis as a reference and a flow collecting mechanism connected to the top of the three array tubes. The triad central tube realizes multi-point uniform gas collection and primary separation, the triad structure guarantees uniform radial heating of the dry distillation section, reduces tar generation from the source, and then the gap and the annular channel are used to realize forced backflow of heavy tar, uncompletely combusted fine carbon particles and fly ash to the gasification section combustion chamber for secondary cracking, thereby reducing the tar content of the outlet coal gas, the array tube dispersion reduces the inlet flow rate, effectively reduces the fly ash entrainment in the coal gas, the uniform gas extraction point optimizes the bed layer gasification agent distribution, and the carbon conversion rate is effectively improved.

The present application belongs to the field of biomass gasification tar measurement, and relates to a method for measuring tar content in a pressurized fluidized bed biomass gasification process, comprising a tar sampling device and content determination. The sampling device comprises a stop valve, a sampling tube, a drying tube, a sampler, a pressure reducing valve, a cooling device, a wet gas flow meter and a pressure gauge, and can realize constant-speed sampling under high-temperature and high-pressure conditions. The measurement method is based on the filter membrane weighing method measurement principle, successfully separates the tar and dust content for measurement, realizes accurate measurement of the tar content, and is simple to operate, low in measurement cost and beneficial to practical application in industry.

The invention provides a production process for continuously preparing an efficient coal water slurry additive from styrene tar. The production process is mainly used for increasing the concentration of coal water slurry in a gasification device. The continuous production process comprises multi-stage high-pressure sulfonation, hydrolysis, neutralization, solvent recovery and the like. The coal water slurry additive with high sulfonate radical content (15-25%) prepared by the process can improve the slurrying concentration of coal water slurry (concentration is increased by 2-3%), especially the coal slurry concentration of low-rank coal.

This invention relates to the field of solid waste resource utilization technology, and discloses a method for preparing syngas and high-concentration CO by chemical chain gasification of coal coke powder. The method includes the following steps: (1) chemical chain gasification reaction of coal coke powder, a disposable catalyst and an oxygen carrier, followed by gas-solid separation to obtain syngas and a first solid product; (2) reaction of the first solid product under a CO2 atmosphere and at 700-1000℃, followed by gas-solid separation to obtain a second solid product and a gaseous product with a CO concentration ≥80% by volume; wherein, the disposable catalyst is alkali lignin. The method for preparing syngas and co-producing high-concentration CO by chemical chain gasification of coal coke powder with a disposable catalyst adopted in this invention solves the shortcomings of traditional coal coke powder utilization processes, such as high tar content, low gasification efficiency and difficulty in controlling the H / C ratio, and breaks through the bottleneck of alkali metal utilization in the utilization of alkali lignin. It is of great significance for the co-resource utilization of industrial organic waste.

The utility model discloses a tar collecting structure of a gas diffusion bell jar, which relates to the technical field of gas furnace equipment transformation and comprises a diffusion pipe and a rainproof cap, the rainproof cap is positioned above a diffusion port of the diffusion pipe, and a conical cap for collecting tar is arranged in the rainproof cap. The edge of a bottom opening of the conical cap is fixedly connected with the periphery of the inner wall of the rainproof cap, a circle of the bottom opening of the rainproof cap is fixedly connected with an annular groove, a plurality of through holes are formed in the side, close to the bleeder, of the annular groove, and the through holes fixedly communicate with chutes. According to the coal gas tar collecting device, coal gas rises into the rain-proof cap through the diffusing opening and then is blocked by the conical cap, tar is condensed, the tar slides down into the annular groove under the action of gravity and then flows back into the diffusing pipe through the through holes and the chutes, and therefore the good coal gas tar collecting effect is achieved.

A method (100) of producing commercially pure carbon dioxide can include providing (110) a body of rubblized carbon based ore. The body of rubblized carbon based ore can be heated (120) at an elevated temperature under an oxygen deficient atmosphere to produce water, carbon dioxide, a residual mineral ore, and optionally hydrocarbon products. The carbon dioxide can be separated (130) from the water and optional hydrocarbon products. The carbon based ore can include oil shale, coal, tar sands, peat, tasmanite, or a combination thereof.

The present invention relates to a method for purifying a tar containing gas stream. The method comprises the steps of:a) contacting a tar containing gas stream with a washing liquid in a washing unit to obtain a tar containing washing liquid and a purified gas stream;b) adding an extractant to the tar containing washing liquid to obtain an extraction liquid comprising a tar containing extractant and a regenerated washing liquid;c) cooling the extraction liquid;d) after cooling, separating the tar containing extractant from the regenerated washing liquid, ande) recirculating the regenerated washing liquid to the washing unit.

The invention discloses a raw gas dust and oil removal washing and gas water purification coupling device and process. The device comprises a high-pressure washing tower and a normal-pressure washing tower which are respectively provided with a filtering basket, a flow guide ring component, a herringbone heat exchange baffle plate, a filter, a defoaming wire mesh and a superheated steam stripping pipeline, high-temperature raw gas enters the high-pressure washing tower, and tar and pulverized coal particles are condensed and leached by a lower spraying structure and a purification auxiliary agent; the upper spraying structure is used for further chilling medium oil and water vapor carried by the raw gas and collecting the medium oil and water vapor into a liquid collector of the high-pressure washing tower, and qualified raw gas is extracted from the tower top; and then, further settling and separating the mixture of the oil and the water in the normal-pressure washing tower, and meanwhile, escaping a small amount of raw gas carried by the liquid, and purifying and recycling again under the spraying of a purifying auxiliary agent. The separation process not only recovers heat, but also efficiently cleans the raw gas, increases the yield of tar and medium oil, and reduces the COD value in the gas water and the load of a subsequent sewage treatment device.

The present application belongs to the technical field of coke oven gas purification, and discloses a coal gas preheater flushing system and a flushing method. The coal gas preheater flushing system is used for flushing impurities on the internal tube bundle of the coal gas preheater, and comprises the coal gas preheater, an ammonia water flushing module and an impurity treatment module. The ammonia water flushing module comprises an ammonia evaporation tower, a splitter and a first valve, the splitter is arranged at the top of the ammonia evaporation tower, the remaining ammonia water outlet of the splitter is communicated with the upper cavity of the coal gas preheater, and the first valve is arranged downstream of the remaining ammonia water outlet; the impurity treatment module comprises an acid tar tank and a second valve, the acid tar tank is connected to the bottom of the coal gas preheater and communicated with the lower cavity, and the second valve is arranged upstream of the acid tar tank. The coal gas preheater flushing system can clean the coal gas preheater on line, has good cleaning effect, short cleaning time, and is beneficial to improving the production efficiency.

The utility model relates to the technical field of tar processing, in particular to a cleaning device for a tar storage tank, which comprises a tar tank. A cleaning assembly is arranged in an inner cavity of the tar tank and is used for removing oil stains; a stirring assembly is arranged in an inner cavity of the tar tank and used for rotating oil dirt. According to the cleaning device for the tar storage tank, the cleaning assembly convenient to install is arranged in the inner cavity of the tar tank, cleaning liquid can be sprayed to the tank wall at high pressure through the high-pressure rotating spray head, residual oil stains on the tank wall are washed away, the cleaning efficiency of the tar tank is improved, and manpower is saved; meanwhile, the stirring assembly is arranged in the inner cavity of the tar tank, a stirring shaft can be driven to rotate through a side stirrer on the stirring assembly, at the moment, the stirring shaft can conduct floating crushing on tar residues deposited at the bottom of the storage tank, discharging is convenient, and the cleaning efficiency is improved.

The invention provides a device and a method for stabilizing the quality of external tar. The device comprises a tar tank, a steam heating device, a tar loading pump, an online moisture analyzer and a circulating pipeline, a heating part of the steam heating device is arranged in the tar tank; a first group of tar outlets of the tar tank are formed in the side wall of the tar tank and located at a first height position, a second group of tar outlets are formed in the side wall of the tar tank and located at a second height position, and the second height position is lower than the first height position; an inlet of the tar loading pump is connected with the first group of tar outlets and the second group of tar outlets through pipelines; an outlet of the tar loading pump is connected with a tar loading pipeline through a pipeline; the online moisture analyzer is arranged on the pipeline connected with the outlet of the tar loading pump, the first end of the circulating pipeline is connected to the pipeline connected with the outlet of the tar loading pump, and the second end of the circulating pipeline is connected to the tar tank, so that the problems of large moisture fluctuation of external tar and tar residue deposition in the tar tank are solved.

The utility model relates to a laboratory coal tar pitch melting device belongs to coal tar pitch melting equipment technical field, including experiment table, support frame, melting bucket, apron, exhaust pipe, discharge gate, heating mechanism and stirring mechanism, experiment table upper surface is equipped with melting bucket and support frame, and melting bucket is located below support frame, and melting bucket is equipped with the apron of adaptation, and apron is liftable and is connected in support frame lower extreme through hydraulic cylinder, and apron lower surface still is equipped with stirring mechanism and carries out the stirring to coal tar pitch in melting bucket, and the upper surface of apron is equipped with exhaust pipe, and melting bucket is built -in heating mechanism and carries out heating melting to coal tar pitch in melting bucket, and melting bucket lower extreme's one side fixedly connected with discharge gate carries out the discharge of material, the device simple structure, convenient to use, can effectively improve the evenness of heating when melting, accelerates melting.

The invention provides a method and device for preparing synthesis gas through biomass graded gasification, and belongs to the technical field of biomass gasification. The method for preparing synthesis gas through biomass graded gasification comprises the steps that biomass fuel and a first gasification agent or carrier gas are introduced into a first fluidized bed reactor, volatile components in the biomass fuel are extracted through a pyrolytic reaction or a partial gasification reaction, and a tar-containing gas-solid mixture and semicoke particles are generated; separating the tar-containing gas-solid mixture by a first gas-solid separator to obtain tar-containing mixed gas and solid particles with first particle size; and conveying the tar-containing mixed gas and a third gasifying agent into a downer reactor, and carrying out thermal cracking on tar in the tar-containing mixed gas through a thermal cracking reaction to generate tar-free synthesis gas.

The invention relates to the technical field of tar residue coal blending, in particular to a novel tar residue coal blending device and a novel tar residue coal blending method. Comprising a stock bin, a spiral conveyor connected with a discharge port of the stock bin, a belt conveyor arranged below the discharge port of the spiral conveyor, a ball forming mill installed at a conveying terminal of the belt conveyor and an unloading unit installed on one side of the upper end of the stock bin, and the unloading unit, the stock bin and the spiral conveyor are all arranged in a workshop capable of being closed. The ball forming mill is arranged outside the workshop, the belt conveyor penetrates through the workshop, and the conveying starting end and the conveying terminal end of the belt conveyor are connected with the spiral conveyor and the ball forming mill respectively. By means of the coal blending device arranged in the workshop capable of being closed, whole-course closed conveying of tar dry residues from the residue box to the stock bin is achieved, the problem of dust raising pollution caused by traditional outdoor open space unloading is avoided, and compared with traditional dumper transportation, the transportation cost is reduced through forklift transfer and unloading in the closed workshop.

The invention relates to an oil-rich coal in-situ pyrolysis tar filtering and lightening integrated device and method, the device comprises a steel pipe body buried in a rock stratum, and the steel pipe body comprises an inner pipe body and an outer pipe body; a filtering structure is arranged at the bottom of an inner cavity of the inner pipe body and comprises multiple layers of coarse screens and a filtering medium which are arranged from bottom to top; a catalytic conversion structure is arranged above the filtering structure, the catalytic conversion structure comprises a catalytic tube and a catalytic layer, and the interior of the catalytic tube is of a honeycomb structure; a tar mixed steam and additive mixing cavity is formed between the filtering structure and the catalytic conversion structure; the outer pipe body comprises a heating layer, a compression-resistant layer and a heat preservation layer, and the heating layer is tightly attached to the surface of the inner pipe body. The compression-resistant layer is arranged between the steel pipe body and the heating layer; the heat preservation layer is tightly attached to the surface of the steel pipe body. The in-situ pyrolysis tar of the oil-rich coal can be effectively filtered and lightened, the quality of the tar can be regulated and controlled in real time, and the stability and high efficiency of the whole catalytic process are ensured.