Complete equipment of high-temperature energy-saving kiln for firing refractory bricks

Abstract

The utility model discloses high-temperature energy-saving kiln complete equipment for firing refractory bricks, and relates to the field of refractory brick firing equipment. The complete equipment comprises an energy-saving kiln body arranged on the ground, the energy-saving kiln body comprises a sintering kiln box provided with a door opening, a ground rail which is arranged on the ground and extends into the sintering kiln box from the door opening, and a sintering ferry vehicle which is arranged on the ground rail and can automatically walk, and a heat preservation kiln door capable of vertically ascending and descending is arranged at the position of the door opening of the sintering kiln box. A T-shaped pit is arranged underground the energy-saving kiln body, a biochar cracking machine is arranged in the T-shaped pit, the cracking gas output end of the biochar cracking machine is communicated with the sintering chamber of the sintering kiln box through a blast conveying device, and the sintering kiln box is provided with an igniter. According to the high-temperature energy-saving kiln, pyrolysis gas generated in the biochar production process is used as firing fuel, a large amount of pyrolysis gas with a high calorific value is cached and accumulated at a high temperature and is periodically supplemented into the sintering kiln box for high-temperature combustion, firepower firing is uniform, and the energy-saving effect is remarkable.

Description

Technical Field

[0001] The utility model relates to the field of refractory brick firing equipment, and particularly relates to a complete set of high-temperature energy-saving kiln equipment for firing refractory bricks. Background Art

[0002] Many enterprises in the existing industries of producing refractory materials or clay bricks and the like need to use tunnel kilns or electric kiln furnaces to fire refractory materials. After the tunnel kiln finishes firing, there is still a large amount of waste heat remaining in the tunnel kiln. However, usually, a large amount of high-temperature waste gas is generated during the production process of the tunnel kiln. But many enterprises directly discharge these high-temperature waste gases, resulting in waste of heat. To solve the above problems, the Chinese patent with the patent publication number CN211953749U discloses a tunnel kiln waste heat utilization device for refractory brick processing, including an air inlet pipe and an air outlet pipe respectively connected to the tunnel kiln; a connecting pipe for connecting the air inlet pipe and the air outlet pipe of different tunnel kilns; a first control valve installed on the connecting pipe; in the above solution, by closing the second control valve and opening the first control valve, the high-temperature waste gas generated by one of the tunnel kilns sequentially passes through the air outlet pipe and the connecting pipe, and then enters the air inlet pipe of another tunnel kiln that is in use. At the same time, air is continuously blown into the port of the air inlet pipe, so that the mixed high-temperature gas of air and high-temperature waste gas enters another tunnel kiln. At this time, a relatively high temperature inside the tunnel kiln can be achieved in another tunnel kiln without consuming a lot of fuel and the like, and the waste heat utilization of the high-temperature waste gas is efficiently realized.

[0003] However, in the actual use process, although the tunnel kiln for refractory brick forming is connected to the air inlet of another tunnel kiln in use through the air outlet pipe and the connecting pipe during use, so that the waste heat of the high-temperature waste gas is utilized, in the case of a single tunnel kiln working, although there is a heat storage structure for storing heat, due to factors such as relatively fast wind speed and short contact time when the high-temperature waste gas passes through the heat storage structure, more heat is discharged through the air outlet, resulting in ineffective utilization of the waste heat of the tunnel kiln, thus resulting in waste of waste heat in the case of a single tunnel kiln working.

[0004] The existing energy-saving electric kiln furnace uses electric energy for heating, and the energy consumption during heating and firing is relatively low. Although it has a certain energy-saving effect, when the electric kiln furnace is firing, it is usually easy to have uneven heating inside the kiln furnace, and the refractory bricks cannot be fully heated. It takes a long time to heat to fully fire the bricks. Such a long heating time will lead to more resource consumption. Generally speaking, the existing tunnel kiln or electric kiln furnace does not have much advantage in terms of energy-saving effect when used for firing refractory materials, and cannot achieve better energy-saving and uniform firing. Content of the Utility Model

[0005] In order to solve the problems existing in the refractory brick firing equipment in the prior art, the utility model provides a complete set of high-temperature energy-saving kiln equipment for firing refractory bricks.

[0006] The technical solution adopted by the utility model to achieve the above technical effects is as follows:

[0007] A complete set of high-temperature energy-saving kiln equipment for firing refractory bricks, including an energy-saving kiln body arranged on the ground. The energy-saving kiln body includes a sintering kiln box with a door opening, a ground rail arranged on the ground and extending into the sintering kiln box from the door opening, and a sintering transfer car that can move by itself on the ground rail. A vertically liftable heat-insulating kiln door is arranged at the door opening of the sintering kiln box. There is a T-shaped cellar pit underground in the energy-saving kiln body, and a biochar pyrolyzer is arranged in the T-shaped cellar pit. The pyrolysis gas output end of the biochar pyrolyzer is communicated with the sintering chamber of the sintering kiln box through a blast conveying device, and the sintering kiln box is provided with an igniter.

[0008] Preferably, in the above-mentioned complete set of high-temperature energy-saving kiln equipment for firing refractory bricks, the sintering kiln box is provided with falling door baffles on both sides of the door opening, and U-shaped door sealing grooves for accommodating the opposite side edges of the heat-insulating kiln door are opened on the vertical side end faces of the falling door baffles.

[0009] Preferably, in the above-mentioned complete set of high-temperature energy-saving kiln equipment for firing refractory bricks, the sintering transfer car includes a self-propelled car body and a refractory stacking platform fixed on the self-propelled car body. Convex ribs are respectively arranged along the left and right sides of the refractory stacking platform. U-shaped sealing grooves are arranged on the left and right sides of the bottom of the sintering chamber of the sintering kiln box, and the convex ribs are slidably adapted in the U-shaped sealing grooves to seal the connection transition between the two.

[0010] Preferably, in the above-mentioned complete set of high-temperature energy-saving kiln equipment for firing refractory bricks, the blast conveying device includes a blower arranged at the rear side of the sintering kiln box, an air outlet pipe connected to the air outlet end of the blower, and a U-shaped distribution pipe connected to the end of the air outlet pipe. The left and right side pipe sections of the U-shaped distribution pipe are respectively arranged at the left and right side walls of the sintering kiln box. Pyrolysis gas conveying branch pipes are connected to the left and right side pipe sections of the U-shaped distribution pipe, and the ends of the pyrolysis gas conveying branch pipes are located in the sintering chamber of the sintering kiln box.

[0011] Preferably, in the above-mentioned complete set of high-temperature energy-saving kiln equipment for firing refractory bricks, two columns are arranged at the top of the sintering kiln box near the door opening, and a kiln door lifting control device is arranged on the columns.

[0012] Preferably, in the above-mentioned high-temperature energy-saving kiln set for firing refractory bricks, the kiln door lifting control device includes a rotating shaft rotatably connected between the two columns, a synchronous gear fixedly connected to both ends of the rotating shaft, a synchronous chain meshing on the synchronous gear, a counterweight block connected to one end of the synchronous chain, and a driver for driving the rotating shaft to rotate, and the other end of the synchronous chain is fixedly connected to the thermal insulation kiln door.

[0013] Preferably, in the above-mentioned high-temperature energy-saving kiln set for firing refractory bricks, the driver includes a servo motor fixed on the top of the sintering kiln box, a sprocket is fixed to one end of the rotating shaft, and the servo motor is connected to the sprocket through a transmission chain.

[0014] Preferably, in the above-mentioned high-temperature energy-saving kiln set for firing refractory bricks, the biochar pyrolysis machine includes a pyrolysis box, the internal space of the pyrolysis box is divided into a pyrolysis gas buffer chamber and a high-temperature carbonization chamber with upper and lower layers by a heat-conducting partition, a carbonization pyrolysis machine is provided in the high-temperature carbonization chamber, and the carbonization pyrolysis machine is composed of a sealed linear heat-conducting box, a chain plate conveyor belt for conveying biomass raw materials is provided in the heat-conducting box, and the middle section of the heat-conducting box is composed of an upper chamber and a lower chamber with upper and lower layers, a driving sprocket is provided at the front end of the heat-conducting box, and a passive sprocket is provided at the rear end, the upper section of the chain plate conveyor belt passes through the upper chamber, and the lower section passes through the lower chamber, the carbonization pyrolysis machine is provided with a pyrolysis gas duct assembly connected to the high-temperature carbonization chamber, a valved air pipe for connecting the high-temperature carbonization chamber with the pyrolysis gas buffer chamber is provided on the heat-conducting partition, and a gas supply pipe connected to the air blowing conveying device is provided on the pyrolysis gas buffer chamber.

[0015] Preferably, in the above-mentioned high-temperature energy-saving kiln set for firing refractory bricks, the T-shaped pit includes a main pit chamber and a feed pit chamber laterally arranged at the front end of the main pit chamber, the feed pit chamber is connected to the main pit chamber, the cracking box is placed in the main pit chamber, the feed hopper at the front end of the heat conductive box is arranged in the feed pit chamber, and a feed conveyor connected to the feed hopper and a discharge conveyor connected to the discharge hopper of the heat conductive box are arranged obliquely downward at both ends of the feed pit chamber.

[0016] The advantages and positive effects of the utility model are as follows: the high-temperature energy-saving kiln for firing refractory bricks of the utility model utilizes the cracking gas generated in the biochar production process as the firing fuel; the biochar cracking machine arranged in the T-shaped pit can generate a large amount of high-calorific value cracking gas during operation, and accumulates it in a relatively high temperature buffer, and periodically supplements it into the sintering kiln box for high-temperature combustion; the firepower is evenly fired, and the energy-saving effect is remarkable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is the top view of the biochar pyrolyzer of the present utility model in a T-shaped pit kiln;

[0019] Figure 3 This is the three-dimensional view of the energy-saving kiln body of the present utility model from the rear side perspective;

[0020] Figure 4 This is the three-dimensional view of the energy-saving kiln body of the present utility model from the front side perspective;

[0021] Figure 5 This is the three-dimensional view of the air-blowing conveying device of the present utility model;

[0022] Figure 6 This is the structural diagram of the kiln door lifting control device of the present utility model;

[0023] Figure 7 This is the structural diagram of the biochar pyrolyzer of the present utility model;

[0024] Figure 8 This is the structural diagram of the carbonization pyrolyzer of the present utility model. Detailed implementation manners

[0025] To further understand the present utility model, the following further explains the present utility model with reference to the accompanying drawings of the specification and specific embodiments:

[0026] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "install", "connect", "couple" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or a connection through an intermediate medium. It can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0028] To further understand the content, features and effects of the present utility model, the following specific embodiments are given for detailed description:

[0029] Please refer to Figure 1 , as shown in the figure, a complete set of high-temperature energy-saving kiln equipment for firing refractory bricks proposed in an embodiment of the present utility model. This complete set of equipment includes an energy-saving kiln body 3 arranged on the ground, and the refractory bricks are sent into the energy-saving kiln body 3 for firing. Specifically, as Figure 3 and Figure 4 shown, the energy-saving kiln body 3 includes a sintering kiln box 31 with a door opening, a ground rail 32 arranged on the ground and extending into the sintering kiln box 31 from the door opening, and a sintering ferry car 33 that can move on its own on the ground rail 32. Among them, a vertically liftable heat-insulating kiln door 35 is provided at the door opening of the sintering kiln box 31. The refractory brick blanks to be fired are sent into the sintering kiln box 31 by the self-moving sintering ferry car 33. After the firing is completed, the sintering ferry car 33 moves out of the sintering kiln box 31 from the inside and then the forklift transfers the stacked fired refractory brick products from the sintering ferry car 33 and sends the next batch of refractory brick blanks to be fired onto the sintering ferry car 33. When the sintering ferry car 33 enters and exits, the heat-insulating kiln door 35 is in the raised state, and at this time the door opening of the sintering kiln box 31 is fully open. During the sintering process, the heat-insulating kiln door 35 is in the lowered state, and at this time the door opening of the sintering kiln box 31 is fully closed.

[0030] As Figure 1 shown, a T-shaped cellar pit 1 is provided underground at the energy-saving kiln body 3. A biochar pyrolyzer 2 is provided in the T-shaped cellar pit 1. The biochar pyrolyzer 2 is used for the production of biochar products. The biochar raw materials generate pyrolysis gas during the carbonization process, and the generated pyrolysis gas provides firing fuel for the energy-saving kiln body 3. Specifically, as Figure 1 shown, the pyrolysis gas output end of the biochar pyrolyzer 2 is communicated with the sintering chamber of the sintering kiln box 31 through a blast conveying device 37. A large amount of pyrolysis gas generated when the biochar pyrolyzer 2 carbonizes and pyrolyzes the biomass raw materials is controllably sent into the sintering chamber of the sintering kiln box 31 by the blast conveying device 37 and is ignited and burned by an igniter provided on the sintering kiln box 31 to provide a high-temperature firing temperature for the sintering chamber.

[0031] Furthermore, in a preferred embodiment of the present utility model, as Figure 3 and Figure 4 shown, the sintering kiln box 31 is provided with falling door baffles 311 on both sides of the door opening. The vertical side end face of the falling door baffle 311 is provided with a U-shaped door sealing groove 3111 for accommodating the opposite side edge of the heat-insulating kiln door 35. The two sides of the heat-insulating kiln door 35 can be well sealed to the sintering chamber through the corresponding U-shaped door sealing grooves 3111 on both sides, avoiding the escape of high-temperature hot gas during the sintering process, improving the utilization efficiency of heat energy, and at the same time can also provide a guiding function for the lifting of the heat-insulating kiln door 35 to make it close to the side of the door opening.

[0032] Further, in the preferred embodiment of the present utility model, as Figure 4 shown, the sintering transfer car 33 includes a self-propelled car body 331 and a refractory stacking platform 332 fixed on the self-propelled car body 331. Convex ribs 333 are respectively arranged along the left and right sides of the refractory stacking platform 332. U-shaped sealing grooves 312 are arranged at the left and right sides of the bottom of the sintering chamber of the sintering kiln box 31. The convex ribs 333 are slidably fitted in the U-shaped sealing grooves 312 on the corresponding sides to seal the connection transition between the two. In the embodiment of the present utility model, the self-propelled car body 331 is made of refractory materials. After the sintering transfer car 33 enters the sintering chamber of the sintering kiln box 31, the convex ribs 333 along the left and right sides of the refractory stacking platform 332 are fitted and connected with the U-shaped sealing grooves 312 on the corresponding sides, separating the upper and lower spaces of the refractory stacking platform 332, realizing the sealed isolation of the upper and lower spaces, and avoiding the damage to the traveling mechanism at the bottom of the self-propelled car body 331 caused by the high temperature in the sintering chamber during firing.

[0033] Further, in the preferred embodiment of the present utility model, as Figure 3 and Figure 5 shown, the blast conveying device 37 includes a blower 371 arranged at the rear side of the sintering kiln box 31, an air outlet pipe 372 connected to the air outlet end of the blower 371, and a U-shaped distribution pipe 373 connected to the end of the air outlet pipe 372. As Figure 3 shown, the left and right pipe sections of the U-shaped distribution pipe 373 are respectively arranged at the left and right side walls of the sintering kiln box 31, and its end is in a sealed state, and the cracked gas mixed with air is input into the sintering chamber of the sintering kiln box 31 through the two side pipe sections synchronously. As Figure 5 shown, cracked gas conveying branch pipes 374 are connected to the left and right pipe sections of the U-shaped distribution pipe 373, and the ends of the cracked gas conveying branch pipes 374 are located in the sintering chamber of the sintering kiln box 31. The cracked gas generated by the biochar cracking machine 2 is blown into the two side U-shaped distribution pipes 373 by the blower 371, and then the cracked gas is evenly distributed into the sintering chamber of the sintering kiln box 31 by the cracked gas conveying branch pipes 374, realizing the uniform firing of the internal refractory brick blanks. As a preferred implementation manner of the present utility model, during the process of conveying the cracked gas to the sintering kiln box 31, the blast conveying device 37 also synchronously blows a certain flow rate of air into the sintering kiln box 31.

[0034] Further, in the preferred embodiment of the present utility model, as Figure 3 and Figure 4As shown, two columns 34 are provided on the top of the sintering kiln box 31 near the door opening, and a kiln door lifting control device 36 is provided on the columns 34. When the door opening needs to be opened to send in or remove the sintering ferry 33, the kiln door lifting control device 36 is started to drive the insulation kiln door 35 to rise, so that the sintering ferry 33 carrying the stacked refractory bricks can enter the sintering kiln box 31. After the sintering ferry 33 is completely entered, the kiln door lifting control device 36 controls the insulation kiln door 35 to descend and reset to the closed state, so that the door opening of the sintering kiln box 31 is completely closed.

[0035] As a preferred embodiment of the present invention, Figure 6 As shown, the kiln door lifting control device 36 includes a rotating shaft 361 rotatably connected between two columns 34, a synchronous gear 362 fixedly connected to both ends of the rotating shaft 361, a synchronous chain 366 meshed with the synchronous gear 362, a counterweight 367 connected to one end of the synchronous chain 366, and a driver for driving the rotating shaft 361 to rotate. The other end of the synchronous chain 366 is fixedly connected to the heat preservation kiln door 35. In the embodiment of the utility model, the driver includes a servo motor 365 fixed to the top of the sintering kiln box 31, a sprocket 363 is fixed to one end of the rotating shaft 361, and the servo motor 365 is connected to the sprocket 363 through a transmission chain 364. The weight of the heat preservation kiln door 35 is greater than the weight of the counterweight 367. In a natural state, the heat preservation kiln door 35 falls completely and the counterweight 367 is pulled up to a certain height. When the insulation kiln door 35 needs to be raised, the servo motor 365 is started, and the sprocket 363 is driven to rotate through the transmission chain 364, and then the shaft 361 is driven to rotate synchronously through the sprocket 363, so that the synchronous gear 362 drives the synchronous chain 366 to move toward the side of the counterweight block 367, that is, the synchronous chain 366 descends at the end located at the counterweight block 367 and rises at the end located at the insulation kiln door 35, thereby controlling the insulation kiln door 35 to rise and open. With the cooperation of the counterweight block 367, the workload of the servo motor 365 when opening the insulation kiln door 35 can be reduced. In order to improve the structural strength of the column 34, such as Figure 3 As shown, the two columns 34 are also provided with oblique support reinforcement rods 341. For the convenience of maintenance, both sides of the sintering kiln box 31 are also provided with maintenance platforms 39, and the maintenance platforms 39 are provided with steps 391.

[0036] Further, in a preferred embodiment of the present invention, Figure 7 As shown, the biochar pyrolysis machine 2 includes a pyrolysis box 21, the internal space of which is divided into a pyrolysis gas buffer chamber 24 and a high-temperature carbonization chamber 23 by a heat-conducting partition 22. The high-temperature carbonization chamber 23 is provided with a carbonization pyrolysis device 25, which is used to carbonize the biomass raw materials to produce biochar products, and at the same time generate pyrolysis gas with a high calorific value for use in the sintering kiln box 31. Specifically, asFigure 8 As shown in the figure, the carbonization and cracking device 25 is composed of a sealed linear heat-conducting box body 251. A chain conveyor belt 259 for conveying biomass raw materials is arranged in the heat-conducting box body 251. A feed hopper 254 is arranged at the front end of the heat-conducting box body 251, and a discharge hopper 255 is arranged at the lower side position corresponding to the feed hopper 254. The middle section of the heat-conducting box body 251 is composed of an upper chamber 252 and a lower chamber 253 which are vertically layered. The upper chamber 252 horizontally extends forward with a support plate 2511 at the position facing the front end. A driving sprocket 258 is arranged at the front end of the heat-conducting box body 251, and a driven sprocket 2581 is arranged at the tail end. The upper section of the chain conveyor belt 259 passes through the upper chamber 252, and the lower section passes through the lower chamber 253. The biomass raw materials are fed through the feed hopper 254, then fall on the support plate 2511, and the biomass raw materials are continuously fed into the upper chamber 252 through the driven chain conveyor belt 259, and then returned to the lower chamber 253. During the process of the biomass raw materials passing through the upper chamber 252 and the lower chamber 253, they are pyrolyzed at high temperature, generating pyrolysis gas and being carbonized into biomass carbon products. The produced biomass carbon products are output through the discharge hopper 255 under the cyclic drive of the chain conveyor belt 259.

[0037] As Figure 8 shown in the figure, a pyrolysis gas duct assembly communicating with the high-temperature carbonization chamber 23 is arranged on the carbonization and cracking device 25. The pyrolysis gas duct assembly includes a lower duct 256 connected to the top of the lower chamber 253 and an upper duct 257 connected to the top of the upper chamber 252. The opening of the lower duct 256 is located in the combustion space between the lower chamber 253 and the upper chamber 252. The upper duct 257 is in a C-shaped elbow structure, and its downwardly bent part forms an elbow nozzle 2571, corresponding to the bottom position of the lower chamber 253. The upper duct 257 is used to lead the pyrolysis gas generated in the upper chamber 252 to the lower part of the lower chamber 253, and the lower duct 256 is used to lead the pyrolysis gas generated in the lower chamber 253 to the lower part of the upper chamber 252. Through this guiding design, the pyrolysis gas can be made to burn near the upper chamber 252 and the lower chamber 253, further promoting the generation of pyrolysis gas and carbonization of the biomass raw materials in the carbonization and cracking device 25. It should be noted that in the initial stage, the carbonization and cracking device 25 uses externally input natural gas as the combustion medium to provide a high-temperature environment for the biomass raw materials. After high-temperature carbonization, when the concentration of the pyrolysis gas reaches a certain range, the input of external natural gas is stopped, and the generated pyrolysis gas is used as the combustion medium. As an implementation manner of the present invention, natural gas input interfaces and igniter devices are arranged at the positions corresponding to the upper chamber 252 and the lower chamber 253 of the carbonization and cracking device 25.

[0038] Furthermore, as Figure 7 and Figure 8As shown, a valve-equipped gas conduit 28 for connecting the high-temperature carbonization chamber 23 and the pyrolysis gas buffer chamber 24 is provided on the heat-conducting partition 22, and a gas pipeline 4 connected to the air-blowing conveying device 37 is provided on the pyrolysis gas buffer chamber 24. When a large amount of pyrolysis gas is generated, the pyrolysis gas generated in the upper chamber 252 and the lower chamber 253 is input into the high-temperature carbonization chamber 23 through the upper conduit 257 and the lower conduit 256. Part of this pyrolysis gas burns in the high-temperature carbonization chamber 23 to continuously provide the high temperature required for carbonization and pyrolysis for the biomass raw materials continuously fed into the carbonization and pyrolysis device 25. Another part of the pyrolysis gas in the high-temperature carbonization chamber 23 is sent into the pyrolysis gas buffer chamber 24 through the valve-equipped gas conduit 28, and then sent into the sintering kiln box 31 by the air-blowing conveying device 37 through the gas pipeline 4. Since the pyrolysis gas fed into the pyrolysis gas buffer chamber 24 already has a relatively high temperature, it can burn rapidly after entering the sintering kiln box 31. During the firing process of the refractory bricks, the valve-equipped gas conduit 28 is controlled to open in a pulsed manner. After the firing is completed and the heat preservation ends, the valve-equipped gas conduit 28 remains closed, the heat preservation kiln door 35 opens, and the sintering transfer car 33 carries the finished refractory bricks out of the sintering kiln box 31.

[0039] Furthermore, in the preferred embodiment of the present invention, as Figure 2 shown, the T-shaped pit 1 includes a main pit chamber 11 and a feeding pit chamber 12 horizontally arranged at the front end of the main pit chamber 11. Among them, the feeding pit chamber 12 is communicated with the main pit chamber 11, and the pyrolysis box body 21 is arranged in the main pit chamber 11, and the feeding hopper 254 at the front end of the heat-conducting box body 251 is arranged in the feeding pit chamber 12. As Figure 2 shown, for the convenience of feeding biomass raw materials and outputting biomass carbon products, feeding conveyors 6 connected to the feeding hopper 254 and discharging conveyors 7 connected to the discharging hopper 255 of the heat-conducting box body 251 are obliquely arranged downward at both ends of the feeding pit chamber 12. Since the feeding conveyors 6 and the discharging conveyors 7 are arranged obliquely to make way, they do not interfere with the ground rail 32 and the sintering transfer car 33.

[0040] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A complete set of high-temperature energy-saving kiln equipment for firing refractory bricks, characterized in that, It includes an energy-saving kiln body (3) arranged on the ground. The energy-saving kiln body (3) includes a sintering kiln box (31) with a door opening, a ground rail (32) arranged on the ground and extending into the sintering kiln box (31) from the door opening, and a sintering transfer car (33) that can move by itself on the ground rail (32). A heat-insulating kiln door (35) that can be vertically lifted is arranged at the door opening of the sintering kiln box (31). There is a T-shaped cellar pit (1) underground where the energy-saving kiln body (3) is located. A biochar pyrolyzer (2) is arranged in the T-shaped cellar pit (1). The pyrolysis gas output end of the biochar pyrolyzer (2) is communicated with the sintering chamber of the sintering kiln box (31) through a blast conveying device (37). The sintering kiln box (31) is equipped with an igniter.

2. The complete set of high-temperature energy-saving kiln equipment for refractory brick firing according to claim 1, characterized in that, The sintering kiln box (31) is provided with drop door baffles (311) on both sides of the door opening. The vertical side end face of the drop door baffle (311) is provided with a U-shaped door sealing groove (3111) for accommodating the opposite side edge of the heat-insulating kiln door (35).

3. The complete set of high-temperature energy-saving kiln equipment for firing refractory bricks according to claim 1, characterized in that, The sintering transfer car (33) includes a self-propelled car plate (331) and a refractory stacking platform (332) fixed on the self-propelled car plate (331). Convex ribs (333) are respectively arranged along the left and right sides of the refractory stacking platform (332). U-shaped sealing grooves (312) are arranged on the left and right sides of the bottom of the sintering chamber of the sintering kiln box (31). The convex ribs (333) are slidably fitted in the U-shaped sealing grooves (312) to seal the connection transition between the two.

4. The complete set of high-temperature energy-saving kiln equipment for firing refractory bricks according to claim 1, characterized in that, The blast conveying device (37) includes a blower (371) arranged at the rear side of the sintering kiln box (31), an air outlet pipe (372) connected to the air outlet end of the blower (371), and a U-shaped distribution pipe (373) connected to the end of the air outlet pipe (372). The left and right side pipe sections of the U-shaped distribution pipe (373) are respectively arranged at the left and right side walls of the sintering kiln box (31). Pyrolysis gas conveying branch pipes (374) are connected to the left and right side pipe sections of the U-shaped distribution pipe (373). The ends of the pyrolysis gas conveying branch pipes (374) are located in the sintering chamber of the sintering kiln box (31).

5. The complete set of high-temperature energy-saving kiln equipment for firing refractory bricks according to claim 1, characterized in that, Two columns (34) are arranged at the top of the sintering kiln box (31) near the door opening. A kiln door lifting control device (36) is arranged on the columns (34).

6. The complete set of high-temperature energy-saving kiln equipment for firing refractory bricks according to claim 5, characterized in that, The kiln door lifting control device (36) includes a rotating shaft (361) rotatably connected between the two columns (34), synchronous gears (362) fixedly connected to both ends of the rotating shaft (361), a synchronous chain (366) meshing with the synchronous gears (362), a counterweight block (367) connected to one end of the synchronous chain (366), and a driver for driving the rotating shaft (361) to rotate. The other end of the synchronous chain (366) is fixedly connected to the heat-insulating kiln door (35).

7. The complete set of high-temperature energy-saving kiln equipment for refractory brick firing according to claim 6, characterized in that, The driver includes a servo motor (365) fixed to the top of the sintering kiln box (31). One end of the rotating shaft (361) is fixed with a sprocket (363), and the servo motor (365) is drivingly connected to the sprocket (363) through a transmission chain (364).

8. The complete set of high-temperature energy-saving kiln equipment for refractory brick firing according to claim 1, characterized in that, The biochar pyrolyzer (2) includes a pyrolysis box body (21). The internal space of the pyrolysis box body (21) is partitioned by a heat-conducting partition board (22) into a pyrolysis gas buffer chamber (24) and a high-temperature carbonization chamber (23) which are stratified up and down. A carbonization pyrolyzer (25) is arranged in the high-temperature carbonization chamber (23). The carbonization pyrolyzer (25) is composed of a sealed linear heat-conducting box body (251). A chain plate conveyor belt (259) for conveying biomass raw materials is arranged in the heat-conducting box body (251). The middle section of the heat-conducting box body (251) is composed of an upper chamber (252) and a lower chamber (253) which are stratified up and down. A driving sprocket (258) is arranged at the front end of the heat-conducting box body (251), and a driven sprocket (2581) is arranged at the tail end. The upper section of the chain plate conveyor belt (259) passes through the upper chamber (252), and the lower section passes through the lower chamber (253). A pyrolysis gas duct assembly communicating with the high-temperature carbonization chamber (23) is arranged on the carbonization pyrolyzer (25). A valve-equipped gas guide pipe (28) for communicating the high-temperature carbonization chamber (23) with the pyrolysis gas buffer chamber (24) is arranged on the heat-conducting partition board (22). An air pipe (4) communicating with the air blowing and conveying device (37) is arranged on the pyrolysis gas buffer chamber (24).

9. The complete set of high-temperature energy-saving kiln equipment for firing refractory bricks according to claim 8, characterized in that, The T-shaped cellar pit (1) includes a main pit chamber (11) and a feeding pit chamber (12) horizontally arranged at the front end of the main pit chamber (11). The feeding pit chamber (12) communicates with the main pit chamber (11). The pyrolysis box body (21) is arranged in the main pit chamber (11). A feeding hopper (254) at the front end of the heat-conducting box body (251) is arranged in the feeding pit chamber (12). Feeding conveyors (6) connected to the feeding hopper (254) and discharging conveyors (7) connected to the discharging hopper (255) of the heat-conducting box body (251) are obliquely arranged downward at both ends of the feeding pit chamber (12).

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