100results about "Calcium carbide" patented technology

The utility model discloses a system for producing sulfuric acid and co-producing lime and coupling calcium carbide from industrial by-product gypsum, which relates to the technical field of production of sulfuric acid and co-producing lime and calcium carbide from industrial gypsum, and comprises a pretreatment drying system for removing impurities in ardealite and obtaining gypsum, and a gypsum decomposition system for decomposing the gypsum into solid CaO and SO2 flue gas, the sulfuric acid preparation system is used for treating SO2 flue gas; and the calcium carbide preparation system is used for preparing calcium carbide by taking solid CaO as a raw material. Compared with the traditional calcium carbide production system, the system provided by the utility model can directly reduce 80% of CO2 emission and save 100% of high-quality limestone resources.

The present invention relates to the technology of utilizing sensible heat of calcium carbide, and particularly relates to a calcium carbide sensible heat utilization system based on the recycling of heat extraction medium. A calcium carbide sensible heat utilization system based on the recycling of heat extraction medium includes a calcium carbide tundish. The calcium carbide tundish is connected to a rotary drum through a calcium carbide flow trough. The rotary drum has openings at both ends, and an intake buffer chamber and an exhaust buffer chamber are respectively arranged at the discharge end and the feed end of the rotary drum. A rotary gear ring is arranged on the outer wall of the rotary drum, and the rotary gear ring cooperates with a rotary motor. Driven by the rotary motor, the rotary drum rotates continuously. A scraping device is arranged inside the rotary drum. This kind of calcium carbide sensible heat utilization system changes the traditional process of using a calcium carbide pot for cooling, directly uses a high-speed heat extraction gas flow to impact the calcium carbide liquid into scattered point-like falling materials for cooling, which is convenient for the high-speed heat extraction gas flow to absorb heat and utilize the sensible heat, and the heat extraction gas medium can be recycled, saving energy and protecting the environment.

The invention discloses a method for preparing a calcium carbide pellet raw material by taking semi-coke powder as a raw material, and relates to the technical field of calcium carbide preparation. The method specifically comprises the following steps: uniformly mixing quick lime, a binder and semi-coke powder, adding a certain amount of water, conveying the mixed material into a high-pressure ball press machine for pelletizing, and drying the prepared pellets to obtain the calcium carbide pellet raw material. The composite binder is low in price, impurities of pellets are not increased, the contact area of carbon and calcium oxide is increased, and the generation rate of calcium carbide is increased. The calcium carbide raw material prepared by the method disclosed by the invention is relatively high in low-temperature compressive strength and high-temperature compressive strength, meets the requirements of low-temperature conveying and high-temperature calcining, ensures that pellets are kept in a block shape in a high-temperature state, and achieves the purpose of recycling wastes of semi-coke powder in production.

The utility model relates to the technical field of calcium carbide production, and specifically to a calcium carbide furnace with uniform material feeding and good electrode insertion depth. A calcium carbide furnace with uniform material feeding comprises a furnace body, a furnace cover is fixedly installed on the top of the furnace body, a plurality of annular evenly distributed material bins are arranged above the furnace cover, three electrode holes are evenly distributed around the center of the circle on the top of the furnace cover, and a plurality of waist-shaped material columns are distributed around each of the water-cooled sealing sleeves, and the plurality of waist-shaped material columns are inclined toward the electrode hole, and each waist-shaped material column is connected to a material bin through a material pipe. The utility model sets the furnace cover as a tower-shaped short furnace cover, and sets the material bins to be evenly distributed in an annular shape, so that the raw materials are evenly laid after entering the furnace body, so that the mixed material ratio around the three-phase electrodes of the calcium carbide furnace can be relatively balanced, and the electrode insertion depth can be increased, so that the thermal efficiency of the calcium carbide furnace is maximized, while stabilizing the furnace condition of the calcium carbide furnace and stabilizing the product quality.

The utility model discloses an opening and closing device based on a calcium carbide pot inserting plate, which comprises a horizontally arranged base, a first driving mechanism is arranged on the base, the first driving mechanism is in transmission connection with a sliding seat, the sliding seat is in sliding connection with the base, the sliding seat is rotatably connected with a base cylinder, and the base cylinder is connected with the calcium carbide pot inserting plate. A sliding column is connected into the base cylinder in a sliding mode, an arm plate and an electric push rod are connected to the sliding column, two movable plates are connected to the arm plate in a sliding mode, operation hooks are connected to the movable plates, and the two movable plates move reversely through a second driving mechanism; the calcium carbide pot inserting plate has the advantages that the special calcium carbide pot inserting plate structure is designed, the calcium carbide pot inserting plate opening and closing device with the higher automation degree is designed in a matched mode, opening and closing of the calcium carbide pot inserting plate do not need manual operation, long-distance operation is achieved, meanwhile, operation is more efficient and faster, and the calcium carbide pot inserting plate opening and closing efficiency is improved. Dangerous accidents such as scald and crashing injury are effectively avoided, and the device is worthy of wide-range popularization and application.

The present invention discloses a method for decomposing the response area of a number sequence of a spray gun elbow pipe in a process of matching lime powder pelletizing with airtight conveying of pulverized coal. There are a variable-diameter fastening groove on the operating platform, a sliding clamp group, and a low-speed ring chain electric hoist. According to the need of variable-diameter bending, several areas are set in the arc part. The arc part of the operating platform is decomposed into areas Ⅰ, Ⅱ, Ⅲ, Ⅳ... The number of data points contained in each sub-area is 100. The closer the number of radii of the arc is, the more precise the bending of the elbow pipe workpiece is, and the closer it is to the size required by the entity. According to the accuracy and the need of variable-diameter bending of the elbow pipe workpiece, a sample radius library of RⅠ, RRⅠ... is set. The above sampling radius library is imported into the general term formula of the arithmetic sequence in step 1: RⅠ = R1 + (n - 1)dⅠ, and so on. The arc sub-area RⅡn at different positions can be calculated. According to this, the sizes of the variable-diameter fastening groove on the operating platform and the sliding clamp group are set and rounded to two decimal places, ensuring the accuracy. At the same time, a queryable database is established, and multiple memory productions can be carried out.

The present invention relates to a method for producing magnesium by carbothermal reduction with co-production of calcium carbide, which is particularly suitable for carbothermal reduction of magnesium using a mixture of magnesium oxide and calcium oxide as raw materials and carbon as a reducing agent. Prepare a mixed powder containing magnesium oxide, calcium oxide and a carbon reducing agent; form the mixed powder into pellet furnace charge and put it into a reactor provided with a heat source; set the absolute pressure P in the reactor within the range of 1000 Pa ≤ P ≤ atmospheric pressure or slightly positive pressure, and the reaction temperature T within the range of 11lg²P + 71lgP + 1210 °C < T < 98lg²P - 129lgP + 1300 °C, and carry out the smelting reaction. Liquid magnesium is obtained by condensation through a condenser connected to the reactor. After the smelting reaction is completed, calcium carbide is obtained in the reactor. By this method, the safety hazard of explosion caused by the easy formation of magnesium powder when the magnesium vapor and CO gas in carbothermal reduction of magnesium are cooled together can be completely avoided, and the cost of magnesium smelting can be significantly reduced. This method has good application prospects in industry.

The invention relates to a pellet and a preparation method thereof, and relates to the technical field of calcium carbide preparation, the pellet comprises the following components in parts by mass: 5.2-8.3 parts of calcium carbonate crystal, 56.8-59.7 parts of calcium oxide, 32.0-37.5 parts of calcium hydroxide, and 0.6-0.9 part of carboxylation modified lignin; the preparation process comprises the steps of raw material pretreatment, mineralization slurry preparation, mineralization and curing. According to the pellet and the preparation method, the active lime screen underflow serves as a calcium source, a stable structure with high strength and multistage pores is constructed on the molecular scale by adopting the biomimetic mineralization principle, and the pellet cracking risk is effectively reduced; meanwhile, an inert binder does not need to be added, effective calcium content dilution is avoided, the high-temperature smelting working condition of the distribution stone is adapted, and the production cost is remarkably reduced.

A method for producing a metal carbide using metal carbonate as a metal source, a method for producing a hydrocarbon from the metal carbonate as a metal source and a metal carbide composition are provided. The method for producing a metal carbide comprises: preparing a molten salt containing a carbonate of a first metal; and obtaining precipitates containing a first metal carbide by applying a voltage to the molten salt. The method for producing a hydrocarbon comprises: preparing a molten salt containing a carbonate of a first metal; obtaining precipitates containing a first metal carbide by applying a voltage to the molten salt; and obtaining a gas containing the hydrocarbon and a hydroxide of the first metal by hydrolyzing the first metal carbide.

[Problem] To provide a metal carbide and a method for producing a metal carbide with which a bioplastic raw material can be relatively inexpensively and stably supplied. [Solution] One aspect of the present invention provides a metal carbide having a biomass degree of 0.01% to 100% as measured by the 14C isotope measurement method defined in ASTM D6866.

The utility model provides a waste calcium carbide remelting and upgrading conveying device, which belongs to the technical field of conveying devices, and comprises a crushing chamber, a rotator arranged in the crushing chamber, two first rotating shafts rotationally connected in the rotator, two crushers fixedly connected to the lower ends of the two first rotating shafts, and two second rotating shafts rotationally connected in the two crushers. The two first gears are fixedly connected to the circumferential surfaces of the two first rotating shafts, the gear ring is fixedly connected to the interior of the crushing chamber, and the first gears are meshed with the gear ring. Meanwhile, powder calcium carbide directly reaches the furnace bottom through the inside of the electrode and does not make contact with a furnace charge layer, current shunting is eradicated, waste products are directly added to the furnace bottom after being powdered and can be rapidly reacted and fused with semi-finished product calcium carbide, and electric energy consumption is greatly reduced.

The invention discloses a plasma hot blast stove consolidation reduction material system using CO as a medium. The plasma hot blast stove consolidation reduction material system comprises a plasma heating device, a consolidation reduction material device, a preheating air supply device and a cooling device. The material consolidation and reduction device comprises a preheating section, a consolidation and reduction section and a cooling section and is used for sequentially preheating, consolidating and reducing and cooling the materials, so that the materials in the form of powder pellets form target materials; the preheating gas supply device is used for conveying preheating gas generated by flue gas waste heat and material sensible heat in the consolidation reduction section according to a preset first temperature range into the preheating section and preheating the materials; the plasma heating device adopts CO as a medium to generate high-temperature CO plasma gas, and the materials in the consolidation reduction section are consolidated and reduced through the high-temperature CO plasma gas according to a preset second temperature range; and the cooling device adopts CO as a medium to generate low-temperature gas in a preset third temperature range, and conveys the low-temperature gas to the cooling section, so that a target material can be formed when the material is cooled to be less than or equal to 100 DEG C.

To provide acetylene utilizable as a raw material for various bioplastics while reducing loads on the environment, to provide a method for producing the acetylene, and to provide an acetylene derivative.SOLUTION: According to an aspect of the present invention, there is provided acetylene, wherein the acetylene contains carbon atoms derived from biomass.SELECTED DRAWING: None

The utility model discloses a kind of dry-process acetylene crude crushing system of calcium carbide, tippler is docked with stacker, mechanical breaking hammer is equipped on the stacker top, stacker outlet is docked with conveying scale plate machine, the export end of conveying scale plate machine is docked with the import of jaw crusher, the outlet of jaw crusher is docked with large angle of inclination lifting belt, the export end of large angle of inclination lifting belt is docked with the inlet of cone crusher, the outlet of cone crusher is docked with flat belt conveyor, the export end of flat belt conveyor is docked with coarse material bin import.The utility model is through reasonable design and equipment configuration, realizes the efficient crushing and conveying of calcium carbide.It is high in degree of automation, high in crushing efficiency, good in environmental protection performance, high in equipment stability and strong in flexibility etc., so that it has remarkable advantage in dry-process acetylene production process, can effectively improve production efficiency, reduce production cost and reduce environmental pollution.

The application discloses a method for preparing metal magnesium and calcium carbide by using waste photovoltaic panels and carbide slag, and relates to the technical field of solid waste treatment.The method comprises the following steps: obtaining silicon powder by treating the waste photovoltaic panels, and using the silicon powder as a reducing agent to prepare metal magnesium; grinding the treated carbide slag to obtain carbide slag powder as a calcium source; using a magnesium-containing material as a magnesium source, and using semi-coke as a carbon source to prepare calcium carbide; mixing and forming the above-mentioned materials according to a certain proportion, and then performing three-stage continuous high-temperature reaction to sequentially complete the three processes of carbide slag decomposition, metal magnesium preparation by a silicon thermal method and calcium carbide preparation by a carbon thermal method; and finally collecting the metal magnesium, the calcium carbide and calcium silicate by-products.The method realizes the collaborative resource utilization of two kinds of solid waste, produces high-value-added metal magnesium and calcium carbide, has no wastewater discharge in the whole process, and reasonably disposes waste gas and waste residue, and has the advantages of green low carbon, low energy consumption and continuous production.

The invention discloses a carbon material powder balling device and process for calcium carbide production, and belongs to the technical field of calcium carbide production, the carbon material powder balling device comprises a screening dust collection assembly, one end of the screening dust collection assembly is fixedly connected with a feeding belt, dust collection air pipes are arranged on the two sides of the bottom end of the screening dust collection assembly, one end of one dust collection air pipe is connected with a second-stage calcium carbide furnace, and the other end of the other dust collection air pipe is connected with a second-stage calcium carbide furnace. According to the invention, carbon undersize materials and carbon fly ash are reasonably utilized and are extruded into blocks which are beneficial to production of the calcium carbide furnace and are moderate in particle size, hardness and strength, and through blending of coke and semi-coke, the carbon undersize materials and the carbon fly ash are uniformly mixed, so that the carbon undersize materials and the carbon fly ash are uniformly mixed, and the carbon undersize materials and the carbon fly ash are uniformly mixed to form the calcium carbide furnace. The solid waste is effectively utilized, the emission of the solid waste is reduced, the comprehensive utilization of the carbon material powder is realized, the utilization rate of the carbon material is greatly improved, the production cost of the calcium carbide is reduced, and the environmental protection pressure in the production process of the calcium carbide is reduced.

A method for producing a metal carbide using carbon dioxide as a carbon source and metal oxide as a metal source, a method for producing a hydrocarbon from the metal carbide obtained using carbon dioxide as a carbon source and metal oxide as a metal source and a metal carbide composition are provided. The method for producing a metal carbide comprises: preparing a molten salt containing an oxide of a first metal; adding carbon dioxide to the molten salt; and obtaining precipitates containing a first metal carbide by applying a voltage to the molten salt containing carbon dioxide. The method for producing a hydrocarbon comprises: preparing a molten salt containing an oxide of a first metal; adding carbon dioxide to the molten salt; obtaining precipitates containing a first metal carbide by applying a voltage to the molten salt containing carbon dioxide; and obtaining a gas containing a hydrocarbon and a hydroxide of the first metal by hydrolyzing the first metal carbide.

The utility model relates to the technical field of calcium carbonate and calcium carbide production equipment, and discloses plush porous calcium carbonate and calcium carbide production equipment which comprises a bottom plate, a carbonization tank is fixedly mounted on the left side of the upper end of the bottom plate, and a first tank cover is arranged on the carbonization tank. A first tank cover is arranged in the carbonization tank, first cover handles are fixedly installed on the end faces of the two sides of the first tank cover, and a first feeding port is formed in the first tank cover. A worker starts a first driving motor mounted on a first tank cover through a controller, so that the first driving motor drives a first connecting rod mounted at the output end of the first driving motor to rotate, and the first connecting rod drives stirring blades mounted on the first connecting rod to rotate; and thus, the stirring blades drive carbon dioxide in the carbonization tank to be fully mixed with calcium carbonate slurry, and the calcium carbonate slurry is better carbonized.

A method for producing a metal carbide, comprising: electrode preparation comprising: preparing a first molten salt containing at least one first metal ion selected from the group consisting of alkali metal ions and alkali earth metal ions, and a carbonate ion, and applying a voltage to the first molten salt to precipitate a precipitate containing carbon on a first electrode, thereby obtaining a second electrode; and electrolysis comprising applying a voltage to a second molten salt containing at least one second metal ion selected from the group consisting of alkali metal ions and alkali earth metal ions using the second electrode to obtain a carbide composition containing a carbide of the second metal.

The present invention belongs to the technical field of metal smelting, and in particular relates to a calcium vapor balance control method and device for catalytic carbon reduction magnesium smelting. The calcium vapor pressure in a reaction system is controlled by condensing and evaporating metallic calcium, thereby suppressing the side reactions 2CaO(s)+CaC2(s)=3Ca(g)+2CO(g), CaC2(s)=Ca(g)+2C(s), and Ca(g)+2C(s)=CaC2(s), thereby increasing the yield of magnesium products and calcium carbide products, and extending the service life of carbonaceous materials such as graphite electrodes in the reaction chamber, greatly improving the economic benefits of the method and facilitating the industrialization and promotion of the method.

The invention discloses a device for continuously producing calcium carbide by using new energy abandoned electricity and adopting biomass as a carbon source and a method for continuously preparing CaC2 by adopting the device. According to the device, biomass is adopted as a carbon source, plasma reaction is adopted as a main calcium carbide preparation route, and a combined form of process units such as a CaO preheater, a biomass carbonization furnace / plasma reactor and the like is designed to complete the calcium carbide processing process. According to the reaction device and method disclosed by the invention, aiming at the reaction process of continuously preparing CaC2, through the combined design of the core reactor, the production process of CaC2 is obviously superior to the reaction of preparing calcium carbide by a transmission fixed bed electrothermal method, the reaction speed is high, the retention time of materials is shortened, and the heat loss of a system can be reduced; and secondly, the biomass carbon is a green carbon source, so that the effect of emission reduction can be achieved, and the utilization of the new energy abandoned electricity also plays a role in saving energy.

This method for producing a metal carbide using carbonate ions as a carbon source comprises: preparing a molten salt containing first metal ions and the carbonate ions; disposing a working electrode and a counter electrode on the molten salt, and supplying a current between the working electrode and the counter electrode at a predetermined current density to produce a carbide of the first metal; and recovering the concentration of the carbonate ions near the working electrode, wherein the production of the carbide of the first metal and the recovery of the concentration of the carbonate ions are alternately repeated at least one time.

A collaborative calcium carbide furnace-exit transfer system and method using an RGV trolley and a mobile platform, relating to the technical field of calcium carbide production equipment, includes a furnace body. An open-loop transfer track is arranged around the furnace bore. A cooling zone is located on the side furthest from the furnace body. Parallel storage tracks are laid near the transfer track within the cooling zone. At least one storage track is equipped with an RGV tractor. An open section is formed between the storage track and the transfer track, with a horizontal track at the open section. A mobile platform is mounted on the horizontal track, and a mobile track is mounted on the mobile platform. One end of the RGV tractor can be hooked onto a receiving trolley on the storage track and pull it along the storage track and the mobile track. Hook mechanisms are provided at both ends of the open section of the transfer track, automatically clamping the neck of the wire rope on the winch and engaging or disengaging it with the head and tail ends of the receiving trolley. This invention improves the automation level and scheduling capability of the trolley during furnace-exit transfer.

The application provides a screen protection insulation kit, which has a vertical surface structure and a horizontal surface structure which are integrally molded by using multiple layers of materials. The vertical surface structure is an arc-shaped thin wall formed by circumferentially dividing a cylinder, and the horizontal surface structure is a fan ring-shaped thin wall which extends radially and outwardly from the lower end of the vertical surface structure. The vertical surface structure comprises, in sequence, a first mica paper, a second mica paper, a first glass cloth, a first mica plate, a second glass cloth, a third mica paper, and a fourth mica paper, which are attached to each other by high-temperature glue. The horizontal surface structure comprises the first mica paper, the second mica paper, the first glass cloth, the second glass cloth, the third mica paper, and the fourth mica paper of the vertical surface structure, and further comprises a second mica plate and a third mica plate which are stacked between the first glass cloth and the second glass cloth. The application also provides a manufacturing process of the screen protection insulation kit, in which a steel mold is used to mold multiple layers of materials into the screen protection insulation kit.

The present invention relates to a method for producing magnesium by carbothermal reduction with co-production of calcium carbide, which is particularly suitable for carbothermal reduction of magnesium using a mixture of magnesium oxide and calcium oxide as raw materials and carbon as a reducing agent. Prepare a mixed powder containing magnesium oxide, calcium oxide and a carbon reducing agent; form the mixed powder into pellet furnace charge and put it into a reactor provided with a heat source; set the absolute pressure P in the reactor within the range of 1000 Pa ≤ P ≤ atmospheric pressure or slightly positive pressure, and the reaction temperature T within the range of 11lg²P + 71lgP + 1210 °C < T < 98lg²P - 129lgP + 1300 °C, carry out the smelting reaction, obtain liquid magnesium by condensation through a condenser connected to the reactor, and obtain calcium carbide in the reactor after the smelting reaction ends. By this method, the safety hazard of explosion caused by the easy formation of magnesium powder when the magnesium vapor and CO gas in carbothermal reduction of magnesium are cooled together can be completely avoided, and the cost of magnesium smelting can be significantly reduced. This method has good application prospects in industry.

To provide a carbon fixing device and a carbon fixing system capable of reducing waste by recycling carbon and obtaining calcium carbide with less energy.SOLUTION: The device comprises a second reaction chamber 32 for reacting calcium oxide with carbon by utilizing the reaction heat of a first reaction chamber 30 for reacting carbon dioxide with magnesium.SELECTED DRAWING: Figure 2

The utility model provides a calcium carbide pot with a positioning and guiding pot inserting plate, which comprises a calcium carbide pot, the caliber of the calcium carbide pot is sequentially increased from bottom to top, and the side wall of the top of the calcium carbide pot is provided with a material taking groove for pulling out a calcium carbide lump from the calcium carbide pot; the positioning assembly comprises a limiting block and two limiting plates which are arranged on the outer side wall of the calcium carbide pot; the limiting block is located under the material taking groove, and the two limiting plates are arranged on the two opposite sides of the material taking groove. The pot inserting plate is inserted into the material taking groove, two clamping plates in one-to-one correspondence with the two limiting plates and two vertical plates located below the two clamping plates are arranged on the outer side wall of the pot inserting plate, the two vertical plates are in axial symmetry relative to the limiting block and are connected with the limiting block through pin shafts, and the pin shafts can rotate in the limiting block and move up and down. According to the pot inserting plate taking device, the convenience of inserting the pot inserting plate into the material taking groove or taking the pot inserting plate out of the material taking groove is improved, and therefore the inserting and taking efficiency of the pot inserting plate is improved.

The utility model provides an opening and closing device based on a calcium carbide pot inserting plate, and relates to the technical field of calcium carbide pots, the opening and closing device comprises a translation rotating assembly and a calcium carbide pot body, the top of the translation rotating assembly is provided with a force arm assembly, the force arm assembly is provided with an operation assembly, and the translation rotating assembly comprises a base; a lead screw is rotationally installed in the base, and guide rods which are symmetrically distributed are fixedly installed in the base. The horizontal precise translation is realized through the screw rod and the guide rod, and the basic shaft is driven by the gear pair to complete the rotary positioning. A rotary supporting structure formed by the auxiliary blocks and the annular sliding grooves effectively disperses operation loads from single-point stress of the basic shaft to multi-point and multi-direction bearing, the rigidity, the anti-overturning capacity and the movement stability of the whole structure are greatly improved, and therefore the positioning repetition precision and the mechanical durability of the device during long-term operation are remarkably improved.

The utility model discloses a system for co-producing calcium carbide and coal tar by using raw coal and limestone and a system for co-producing calcium carbide, LNG (Liquefied Natural Gas) and coal tar, which comprises an external heating type rotary kiln unit for producing calcium carbide raw material semi-coke and byproduct coal gas, the external heating type rotary kiln unit is respectively connected with a coal gas purification unit and a semi-coke screening unit, the lime kiln is connected with a lime screening machine, equipment in the semi-coke screening unit and the lime screening machine are respectively connected with a calcium carbide furnace, and the calcium carbide furnace and the coal gas purification unit are respectively connected with a gas holder. The pyrolysis gas, the coal tar and the semi-coke are prepared through pyrolysis of the pulverized coal, the pulverized coal resource is fully utilized, the coal gas with the low calorific value is used as a heat source of the pyrolysis furnace and the lime kiln through coal gasification, the pyrolysis gas with the high calorific value and the calcium carbide furnace gas are synthesized into the LNG with the high value, the calcium carbide production cost is reduced, and a solving thought is provided for optimization and upgrading of calcium carbide production.

The utility model provides a calcium carbide furnace discharging pot trolley. The calcium carbide furnace discharging pot trolley comprises a trolley body and a traction hook, the vehicle body comprises an upper side surface and a lower side surface; a calcium carbide pot is placed on the upper side surface; and the traction hook is arranged at the central position of the lower side surface. In the using process, the upper side face of the trolley body is used for containing a calcium carbide pot so as to contain discharged calcium carbide; the traction hook is arranged in the center of the lower side face and connected with the traction rope so as to pull the vehicle body, in the traction process, due to the fact that the traction hook is arranged in the center of the lower side face of the vehicle body, the problem that the head of the vehicle body warps under the action of the traction rope and the traction hook is solved, and the problem that in the prior art, the vehicle body is damaged is solved. The calcium carbide pot inclines and shakes in the calcium carbide transferring process, and the life and property safety of field personnel is threatened.