Crushing and conveying device for fine coal gasification slag

Abstract

The invention relates to the technical field of coal gasification fine slag processing, in particular to a coal gasification fine slag crushing and conveying device which comprises a crushing box, a feeding machine, a storage tank and a supporting frame, two crushing rollers are rotationally installed in the crushing box, and a protection box is fixedly installed on the left side wall of the crushing box; and center shafts at one ends of the two crushing rollers extend into the protection box and are fixedly connected with transmission gears. According to the coal gasification fine slag crushing device, coal gasification fine slag which does not conform to the standard during crushing can slide into the material return pipe along the middle position of the filter screen which is obliquely arranged, the spiral conveying roller is further driven by the second motor to convey the coal gasification fine slag which does not conform to the standard to the crushing roller again until the coal gasification fine slag meets the standard, the coal gasification fine slag can be crushed completely, and the crushing efficiency is improved. According to the coal gasification fine slag crushing device, the blockage phenomenon caused by too large coal gasification fine slag can be avoided, follow-up treatment of the coal gasification fine slag can be guaranteed, to-be-crushed coal gasification fine slag blocks can be continuously input into the crushing box, and the crushing continuity of coal gasification fine slag cakes can be guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of coal gasification fine slag processing, in particular to a coal gasification fine slag crushing and conveying device. Background Art

[0002] Coal chemical industry is a general term for industries that convert raw coal into solid, liquid, gas and other forms to produce energy and chemical products. Among them, coal gasification is the core process of modern coal chemical industry. With the continuous expansion of coal gasification capacity, the output of coal gasification ash has increased year by year. According to statistics, the annual production of gasification ash has exceeded 33 million tons. The disposal methods of gasification ash in different regions are different. Due to the physical characteristics of gasification fine slag such as high water content and obvious pore structure, there is still a lack of economical and effective dehydration process. The general disposal method is mainly stacking and landfilling, and the resource utilization rate is low.

[0003] In order to utilize the coal gasification fine slag, the existing scheme utilizes the slag cake formed by mechanically dehydrating the coal gasification fine slag, and in order to crush the slag cake into block fuel suitable for mixing and burning in circulating fluidized bed boilers or grinding in pulverized coal furnaces, the slag cake is crushed;

[0004] After searching, the Chinese invention patent with patent number CN112808737A discloses a waste crushing and conveying integrated device, including a baffle, a parts box is installed on one side of the baffle, and a guide plate is opened on the top of the parts box, a paddle is installed inside the guide plate, and a fourth gear is installed on one end of the paddle, a first gear is installed on one side of the baffle, and a servo motor is installed on one side of the first gear, a sprocket is installed on the inner wall of the baffle, and a second gear is installed on one side of the sprocket, a chain is installed on the outer wall of the sprocket, and a hopper is installed on the inner wall of the chain, and a cutting fan is installed inside the hopper;

[0005] Although the above scheme can enhance the structural stability of the integrated waste crushing and conveying device, and can block organic solid waste during the treatment process to prevent the integrated waste crushing and conveying device from splashing to the outside when processing organic solid waste, during use, the coal gasification fine slag cake crushed by the double-toothed roller crusher is incompletely crushed, and subsequent processing is prone to process blockage and other problems. In addition, it is easy to spill during loading, resulting in waste of coal gasification waste slag.

[0006] Therefore, a device for crushing and conveying coal gasification fine slag is proposed. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides a crushing and conveying device for coal gasification fine slag, which allows the coal gasification fine slag that does not meet the standards during crushing to slide along the middle position of the inclined filter screen into a return pipe, and further drives the spiral conveying roller through a second motor to convey the coal gasification fine slag that does not meet the standards to the crushing roller again until it meets the standards, so that the coal gasification fine slag is completely crushed, avoiding blockage caused by excessive coal gasification fine slag, and ensuring subsequent treatment of the coal gasification fine slag.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] The crushing and conveying device for coal gasification fine slag comprises a crushing box, a loader, a storage tank and a support frame, wherein two crushing rollers are rotatably installed in the crushing box, a protective box is fixedly installed on the left side wall of the crushing box, and the central axes of one end of the two crushing rollers extend into the protective box and are fixedly connected with a transmission gear, a first motor is fixedly installed on the side wall of the crushing box, and the output end of the first motor is fixedly connected to the central axis of one of the transmission gears, a discharge pipe is fixedly connected to the bottom end of the storage tank, a solenoid valve is arranged on the discharge pipe, and a reprocessing component is also arranged on the crushing box, the reprocessing component conveys the coal gasification fine slag that does not meet the standards after being crushed by the two crushing rollers to the crushing box for repeated crushing, feeding components are arranged on the front and rear sides of the crushing box, and a feeding component is arranged in the loader, and the feeding component conveys the coal gasification fine slag that meets the standards in the crushing box to the storage tank.

[0010] Preferably, the reprocessing component includes a filter screen and a drop plate arranged at the bottom end of the crushing box, a return pipe is fixedly installed on the side wall of the crushing box, a spiral conveying roller is spirally installed in the return pipe, the outer wall of the spiral conveying roller is tightly fitted with the inner wall of the return pipe, a second motor is fixedly installed on the top of the return pipe, the output end of the second motor is fixedly connected to the central axis of the spiral conveying roller, and a discharge plate connected to the bottom end of the drop plate is fixedly installed on the side wall of the crushing box.

[0011] Preferably, the return pipe is arranged vertically upward, a discharge pipe is fixedly connected to the side wall at the top of the return pipe, the discharge pipe is arranged obliquely, and the discharge pipe extends to above the two crushing rollers.

[0012] Preferably, a vibration motor is fixedly mounted on the side wall at the bottom end of the crushing box, the filter screen is arranged to be inclined downward from left to right, and both ends of the filter screen are arranged to be inclined downward toward the middle position, the middle position of the filter screen is arranged to be an arc-shaped cylinder, the bottom end of the filter screen is connected to the side wall of the bottom end of the return pipe, and filter holes are evenly opened on the filter screen.

[0013] Preferably, a material dropping platform is fixedly mounted on both side walls of the top of the crushing box, the inner side of the material dropping platform is tilted downward, and the inner side of the material dropping platform extends to the middle position of the crushing roller.

[0014] Through the above scheme, when in use, the coal gasification fine slag blocks entering the crushing box can fall between the two crushing rollers through the drop table. At this time, the first motor is energized to drive one of the transmission gears to rotate. Since the two transmission gears are meshed with each other, the two transmission gears can rotate in opposite directions. At this time, the two crushing rollers can rotate in opposite directions, and the coal gasification fine slag blocks can be crushed. The coal gasification fine slag after preliminary crushing can fall on the filter net, and the coal gasification fine slag that meets the standards can fall on the drop plate along the filter holes, and then slide onto the discharge plate along the inclined drop plate, which is convenient for subsequent processing of the coal gasification fine slag that meets the standards. During crushing, the coal gasification fine slag that does not meet the standards can slide into the return pipe along the middle position of the inclined filter net, and further driven by the second motor The screw conveying roller will convey the coal gasification fine slag that does not meet the standards to the crushing roller again until it meets the standards, which can completely crush the coal gasification fine slag, avoid the phenomenon of material blockage caused by excessive coal gasification fine slag, and ensure the subsequent processing of the coal gasification fine slag.

[0015] Preferably, the feeding assembly includes two first conveyor belts and two second conveyor belts, and the two first conveyor belts and the two second conveyor belts are evenly arranged on both sides of the crushing box, the first conveyor belts are arranged horizontally, and the second conveyor belts are arranged obliquely upward.

[0016] Preferably, the height of the first conveyor belt is higher than the height of the bottom end of the second conveyor belt, the bottom end of the second conveyor belt is arranged at the end of the first conveyor belt, and the top end of the second conveyor belt extends to above the crushing box.

[0017] Through the above scheme, when in use, after the mechanically dehydrated coal gasification fine slag blocks are placed on the first conveyor belt, the first conveyor belt can drive the coal gasification fine slag to move horizontally. Since the height of the first conveyor belt is higher than the height of the bottom end of the second conveyor belt, the coal gasification fine slag blocks on the first conveyor belt are continuously moved to the bottom end of the second conveyor belt, and then transported to the crushing box through the second conveyor belt. Through the cooperation of the two first conveyor belts and the two second conveyor belts, the coal gasification fine slag blocks to be crushed can be continuously input into the crushing box, which can improve the crushing efficiency of the coal gasification fine slag blocks and ensure the continuity of the crushing of the coal gasification fine slag cakes.

[0018] Preferably, the feeding assembly includes transmission rollers rotatably mounted on the top and bottom of the loader, a third motor is fixedly mounted on the side wall of the loader, the output end of the third motor is fixedly connected to the central axis of the bottom transmission roller, a conveyor belt is arranged on the outside of the transmission roller, a plurality of rotating hoppers are evenly and fixedly mounted on the outside of the conveyor belt, a loading hopper is fixedly mounted on the bottom end of the loader, a discharging hopper is fixedly mounted on the top of the loader, the loading hopper is located at the bottom end of the discharging plate, and the discharging hopper extends to the top of the storage tank.

[0019] Preferably, the upper hopper is configured as an arc-shaped hopper, the upper hopper is made of the same rubber material as the conveyor belt, and the side wall of the upper hopper is fixedly connected to the conveyor belt.

[0020] Preferably, a PLC controller is fixedly mounted on the side wall of one of the first conveyor belts, and the PLC controller is electrically connected to the first motor, the second motor, the third motor, the solenoid valve, and the driving sources of the first conveyor belt and the second conveyor belt.

[0021] Through the above scheme, when in use, the PLC controller can control the operation of corresponding electrical components to realize automatic control, and complete the automatic crushing and transportation of coal gasification fine slag. When the third motor is energized, the third motor can drive the conveyor belt to rotate. At this time, the rotary hopper on the outside of the conveyor belt can continuously move to the bottom of the upper hopper. At this time, the rotary hopper can continuously transport the crushed coal gasification fine slag upward, and can continuously transport the coal gasification fine slag to the unloading hopper, and can transport the coal gasification fine slag crushed by the crushing roller to the storage tank, which can facilitate the loading of coal gasification fine slag, and the narrower discharge pipe can reduce the phenomenon of spillage of coal gasification fine slag during loading, and can avoid waste of coal gasification fine slag.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention provides a reprocessing component, and the coal gasification fine slag blocks entering the crushing box can fall between the two crushing rollers through the drop table. At this time, the first motor is energized to drive one of the transmission gears to rotate. Since the two transmission gears are meshed with each other, the two transmission gears can rotate in opposite directions. At this time, the two crushing rollers can rotate in opposite directions, and the coal gasification fine slag blocks can be crushed. The coal gasification fine slag after preliminary crushing can fall on the filter net, and the coal gasification fine slag that meets the standards can fall on the drop plate along the filter holes, and then slide onto the discharge plate along the inclined drop plate, so as to facilitate subsequent processing of the coal gasification fine slag that meets the standards. The coal gasification fine slag that does not meet the standards during crushing can slide into the return pipe along the middle position of the inclined filter net, and further driven by the second motor to transport the coal gasification fine slag that does not meet the standards to the crushing roller again until it meets the standards, so that the coal gasification fine slag can be completely crushed, and the blocking phenomenon caused by excessive coal gasification fine slag can be avoided, and the subsequent processing of the coal gasification fine slag can be guaranteed.

[0024] 2. The present invention sets a feeding component, and after the mechanically dehydrated coal gasification fine slag blocks are placed on the first conveyor belt, the first conveyor belt can drive the coal gasification fine slag to move horizontally. Since the height of the first conveyor belt is higher than the height of the bottom end of the second conveyor belt, the coal gasification fine slag blocks on the first conveyor belt are continuously moved to the bottom end of the second conveyor belt, and then transported to the crushing box through the second conveyor belt. Through the cooperation of the two first conveyor belts and the two second conveyor belts, the coal gasification fine slag blocks to be crushed can be continuously input into the crushing box, which can improve the crushing efficiency of the coal gasification fine slag blocks and ensure the continuity of the crushing of the coal gasification fine slag cakes.

[0025] 3. The present invention sets a feeding component, and can control the operation of corresponding electrical components through a PLC controller to achieve automatic control, thereby completing the automatic crushing and transportation of coal gasification fine slag. When the third motor is energized and working, the third motor can drive the conveyor belt to rotate. At this time, the rotary hopper on the outside of the conveyor belt can continuously move to the bottom of the upper hopper. At this time, the rotary hopper can continuously transport the crushed coal gasification fine slag upward, and can continuously transport the coal gasification fine slag to the unloading hopper, and can transport the coal gasification fine slag crushed by the crushing roller to the storage tank, which can facilitate the loading of coal gasification fine slag, and the narrower discharge pipe can reduce the phenomenon of spillage of coal gasification fine slag during loading, and can avoid waste of coal gasification fine slag. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of a device for crushing and conveying coal gasification fine slag in an embodiment of the present invention;

[0027] Figure 2 It is a schematic side cross-sectional structure diagram of the overall device for crushing and conveying coal gasification fine slag in an embodiment of the present invention.

[0028] Figure 3 This is a schematic diagram of the overall structure of the crushing box in an embodiment of the present invention;

[0029] Figure 4 It is a schematic diagram of the front cross-sectional structure of the crushing box in the embodiment of the present invention;

[0030] Figure 5 It is a schematic diagram of the side cross-sectional structure of the crushing box in the embodiment of the present invention;

[0031] Figure 6 It is a schematic diagram of the side cross-sectional structure of the feeder in an embodiment of the present invention.

[0032] In the figure: 1. first conveyor belt; 2. PLC controller; 3. second conveyor belt; 4. crushing box; 401. crushing roller; 402. protection box; 4021. transmission gear; 403. blanking plate; 404. first motor; 405. vibration motor; 406. discharge plate; 407. blanking table; 408. filter screen; 4081. filter hole; 5. return pipe; 501. second motor; 502. discharge pipe; 503. spiral conveyor roller; 6. feeder; 601. third motor; 602. discharge hopper; 603. transmission roller; 604. feeder hopper; 605. conveyor belt; 606. transfer hopper; 7. storage tank; 701. discharge pipe; 702. solenoid valve; 8. support frame. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0035] Example

[0036] See also Figures 1 to 6The crushing and conveying device of coal gasification fine slag comprises a crushing box 4, a feeding machine 6, a storage tank 7 and a supporting frame 8. Two crushing rollers 401 are rotatably installed in the crushing box 4. A protective box 402 is fixedly installed on the left side wall of the crushing box 4. The central axes of one end of the two crushing rollers 401 extend into the protective box 402 and are fixedly connected with a transmission gear 4021. A first motor 404 is fixedly installed on the side wall of the crushing box 4. The output end of the first motor 404 is fixedly connected to the central axis of one of the transmission gears 4021. A discharge pipe 701 is fixedly connected to the bottom end of the storage tank 7. A solenoid valve 702 is arranged on the discharge pipe 701. A reprocessing component is also arranged on the crushing box 4. The reprocessing component conveys the coal gasification fine slag that does not meet the standards after being crushed by the two crushing rollers 401 to the crushing box 4 for repeated crushing. Feeding components are arranged on the front and rear sides of the crushing box 4. A feeding component is arranged in the feeding machine 6. The feeding component conveys the coal gasification fine slag that meets the standards in the crushing box 4 to the storage tank 7.

[0037] The reprocessing component includes a filter screen 408 and a blanking plate 403 arranged at the bottom end of the crushing box 4, a return pipe 5 is fixedly installed on the side wall of the crushing box 4, a spiral conveying roller 503 is spirally installed in the return pipe 5, the outer wall of the spiral conveying roller 503 is tightly fitted with the inner wall of the return pipe 5, a second motor 501 is fixedly installed on the top of the return pipe 5, the output end of the second motor 501 is fixedly connected to the central axis of the spiral conveying roller 503, and a discharge plate 406 connected to the bottom end of the blanking plate 403 is fixedly installed on the side wall of the crushing box 4.

[0038] The return pipe 5 is arranged vertically upwards, and a discharge pipe 502 is fixedly connected to the side wall at the top of the return pipe 5 . The discharge pipe 502 is arranged obliquely and extends to above the two crushing rollers 401 .

[0039] A vibration motor 405 is fixedly installed on the side wall at the bottom end of the crushing box 4, and the filter screen 408 is arranged to be inclined downward from left to right, and the two ends of the filter screen 408 are arranged to be inclined downward toward the middle position. The middle position of the filter screen 408 is arranged to be an arc-shaped cylinder, and the bottom end of the filter screen 408 is connected to the side wall of the bottom end of the return pipe 5, and filter holes 4081 are evenly opened on the filter screen 408.

[0040] A material dropping platform 407 is fixedly installed on both side walls of the top of the crushing box 4 . The inner side of the material dropping platform 407 is tilted downward and extends to the middle position of the crushing roller 401 .

[0041] Through the above scheme, when in use, the coal gasification fine slag blocks entering the crushing box 4 can fall between the two crushing rollers 401 through the drop table 407. At this time, the first motor 404 is energized to drive one of the transmission gears 4021 to rotate. Since the two transmission gears 4021 are meshed with each other, the two transmission gears 4021 can rotate in opposite directions. At this time, the two crushing rollers 401 can rotate in opposite directions, and the coal gasification fine slag blocks can be crushed. The coal gasification fine slag after preliminary crushing can fall on the filter screen 408, and the coal gasification fine slag that meets the standards can fall on the drop material along the filter hole 4081. The coal gasification slag that does not meet the standards can slide along the middle position of the inclined filter screen 408 to the return pipe 5 during crushing, and the spiral conveying roller 503 is further driven by the second motor 501 to convey the coal gasification slag that does not meet the standards to the crushing roller 401 again until it meets the standards, so that the coal gasification slag can be completely crushed, and the blockage caused by excessive coal gasification slag can be avoided, so as to ensure the subsequent treatment of the coal gasification slag.

[0042] As an embodiment of the present invention, refer to Figure 1-Figure 2 The feeding assembly includes two first conveyor belts 1 and two second conveyor belts 3, and the two first conveyor belts 1 and the two second conveyor belts 3 are evenly arranged on both sides of the crushing box 4, the first conveyor belts 1 are horizontally arranged, and the second conveyor belts 3 are inclined upwardly arranged.

[0043] The height of the first conveyor belt 1 is higher than the height of the bottom end of the second conveyor belt 3 . The bottom end of the second conveyor belt 3 is arranged at the end of the first conveyor belt 1 . The top end of the second conveyor belt 3 extends to the top of the crushing box 4 .

[0044] Through the above scheme, when in use, after the mechanically dehydrated coal gasification fine slag blocks are placed on the first conveyor belt 1, the first conveyor belt 1 can drive the coal gasification fine slag to move horizontally. Since the height of the first conveyor belt 1 is higher than the height of the bottom end of the second conveyor belt 3, the coal gasification fine slag blocks on the first conveyor belt 1 are continuously moved to the bottom end of the second conveyor belt 3, and then transported to the crushing box 4 through the second conveyor belt 3. Through the cooperation of the two first conveyor belts 1 and the two second conveyor belts 3, the coal gasification fine slag blocks to be crushed can be continuously input into the crushing box 4, which can improve the crushing efficiency of the coal gasification fine slag blocks and ensure the continuity of the crushing of the coal gasification fine slag cakes.

[0045] As an embodiment of the present invention, refer to Figure 2 , Figure 6The feeding assembly includes a transmission roller 603 rotatably mounted on the top and bottom of the loader 6, a third motor 601 is fixedly mounted on the side wall of the loader 6, the output end of the third motor 601 is fixedly connected to the central axis of the bottom transmission roller 603, a conveyor belt 605 is arranged on the outer side of the transmission roller 603, a plurality of rotating hoppers 606 are evenly and fixedly mounted on the outer side of the conveyor belt 605, a loading hopper 604 is fixedly mounted on the bottom end of the loader 6, a discharge hopper 602 is fixedly mounted on the top of the loader 6, the loading hopper 604 is located at the bottom end of the discharge plate 406, and the discharge hopper 602 extends to the top of the storage tank 7.

[0046] The upper hopper 604 is configured as an arc-shaped hopper. The upper hopper 604 is made of the same rubber material as the conveyor belt 605 . The side wall of the upper hopper 604 is fixedly connected to the conveyor belt 605 .

[0047] A PLC controller 2 is fixedly mounted on the side wall of one of the first conveyor belts 1 , and the PLC controller 2 is electrically connected to the first motor 404 , the second motor 501 , the third motor 601 , the solenoid valve 702 , and the driving sources of the first conveyor belt 1 and the second conveyor belt 3 .

[0048] In this embodiment, the PLC controller 2 can control the operation of corresponding electrical components to achieve automatic control and complete the automatic crushing and transportation of coal gasification fine slag. When the third motor 601 is powered on, the third motor 601 can drive the conveyor belt 605 to rotate. At this time, the rotary hopper 606 on the outside of the conveyor belt 605 can continuously move to the bottom of the upper hopper 604. At this time, the rotary hopper 606 can continuously transport the crushed coal gasification fine slag upward, and can continuously transport the coal gasification fine slag to the unloading hopper 602. The coal gasification fine slag crushed by the crushing roller 401 can be transported to the storage tank 7, which can facilitate the loading of coal gasification fine slag. The narrower discharge pipe 701 can reduce the phenomenon of spillage of coal gasification fine slag during loading, and can avoid waste of coal gasification fine slag.

[0049] Working principle: The PLC controller 2 can control the operation of the corresponding electrical components to realize automatic control, complete the automatic crushing and transportation of the coal gasification fine slag, and after placing the mechanically dehydrated coal gasification fine slag blocks on the first conveyor belt 1, the first conveyor belt 1 can drive the coal gasification fine slag to move horizontally. Since the height of the first conveyor belt 1 is higher than the height of the bottom end of the second conveyor belt 3, the coal gasification fine slag blocks on the first conveyor belt 1 are continuously moved to the bottom end of the second conveyor belt 3, and then transported to the crushing box 4 through the second conveyor belt 3. Through the cooperation of the two first conveyor belts 1 and the two second conveyor belts 3, the coal gasification fine slag blocks to be crushed can be continuously input into the crushing box 4, which can improve the crushing efficiency of the coal gasification fine slag blocks and ensure the continuity of the crushing of the coal gasification fine slag cakes;

[0050] The coal gasification fine slag blocks entering the crushing box 4 can fall between the two crushing rollers 401 through the drop table 407. At this time, the first motor 404 is energized to drive one of the transmission gears 4021 to rotate. Since the two transmission gears 4021 are meshed with each other, the two transmission gears 4021 can rotate in opposite directions. At this time, the two crushing rollers 401 can rotate in opposite directions, and the coal gasification fine slag blocks can be crushed. The coal gasification fine slag after preliminary crushing can fall on the filter screen 408. The coal gasification fine slag that meets the standards can fall on the drop plate 403 along the filter hole 4081. Then, the coal gasification fine slag slides down along the inclined drop plate 403 to the discharge plate 406, which is convenient for subsequent treatment of the coal gasification fine slag that meets the standards. When crushed, the coal gasification fine slag that does not meet the standards can slide down along the middle position of the inclined filter screen 408 to the return pipe 5, and further driven by the second motor 501 to transport the coal gasification fine slag that does not meet the standards to the crushing roller 401 again until it meets the standards, so that the coal gasification fine slag can be completely crushed, and the phenomenon of material blockage caused by excessive coal gasification fine slag can be avoided, which can ensure the subsequent treatment of the coal gasification fine slag;

[0051] The PLC controller 2 can control the operation of corresponding electrical components to realize automatic control and complete the automatic crushing and transportation of coal gasification fine slag. When the third motor 601 is powered on, the third motor 601 can drive the conveyor belt 605 to rotate. At this time, the rotary hopper 606 on the outside of the conveyor belt 605 can continuously move to the bottom of the upper hopper 604. At this time, the rotary hopper 606 can continuously transport the crushed coal gasification fine slag upward, and can continuously transport the coal gasification fine slag to the unloading hopper 602, and can transport the coal gasification fine slag crushed by the crushing roller 401 to the storage tank 7, which can facilitate the loading of coal gasification fine slag, and then drive the loading truck to the bottom of the support frame 8, and the narrower discharge pipe 701 can reduce the phenomenon of spillage of coal gasification fine slag during loading, which can avoid waste of coal gasification fine slag.

[0052] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A crushing and conveying device for coal gasification fine slag, comprising a crushing box (4), a feeder (6), a storage tank (7) and a support frame (8), characterized in that: Two crushing rollers (401) are rotatably mounted in the crushing box (4); a protection box (402) is fixedly mounted on the left side wall of the crushing box (4); the central axes of one end of the two crushing rollers (401) extend into the protection box (402) and are fixedly connected to a transmission gear (4021); a first motor (404) is fixedly mounted on the side wall of the crushing box (4); the output end of the first motor (404) is fixedly connected to the central axis of one of the transmission gears (4021); the bottom of the storage tank (7) The end is fixedly connected to a discharge pipe (701), and a solenoid valve (702) is arranged on the discharge pipe (701). The crushing box (4) is also provided with a reprocessing component, and the reprocessing component transports the coal gasification fine slag that does not meet the standards after being crushed by the two crushing rollers (401) to the crushing box (4) for repeated crushing. The front and rear sides of the crushing box (4) are provided with a feeding component, and the feeding machine (6) is provided with a feeding component, and the feeding component transports the coal gasification fine slag that meets the standards in the crushing box (4) to the storage tank (7).

2. The crushing and conveying device for coal gasification fine slag according to claim 1, characterized in that: The reprocessing component comprises a filter screen (408) and a material drop plate (403) arranged at the bottom end of the crushing box (4); a return pipe (5) is fixedly installed on the side wall of the crushing box (4); a spiral conveying roller (503) is spirally installed in the return pipe (5); the outer wall of the spiral conveying roller (503) is tightly fitted with the inner wall of the return pipe (5); a second motor (501) is fixedly installed at the top end of the return pipe (5); the output end of the second motor (501) is fixedly connected to the central axis of the spiral conveying roller (503); and a discharge plate (406) connected to the bottom end of the material drop plate (403) is fixedly installed on the side wall of the crushing box (4).

3. The crushing and conveying device for coal gasification fine slag according to claim 2, characterized in that: The return pipe (5) is arranged vertically upwards, and a discharge pipe (502) is fixedly connected to the side wall at the top of the return pipe (5). The discharge pipe (502) is arranged obliquely, and the discharge pipe (502) extends to the top of the two crushing rollers (401).

4. The crushing and conveying device for coal gasification fine slag according to claim 3, characterized in that: A vibration motor (405) is fixedly mounted on the side wall at the bottom end of the crushing box (4); the filter screen (408) is arranged to be inclined downward from left to right, and both ends of the filter screen (408) are arranged to be inclined downward toward the middle position; the middle position of the filter screen (408) is arranged to be an arc-shaped cylinder; the bottom end of the filter screen (408) is connected to the side wall at the bottom end of the return pipe (5); and filter holes (4081) are evenly opened on the filter screen (408).

5. The crushing and conveying device for coal gasification fine slag according to claim 4, characterized in that: A material drop platform (407) is fixedly mounted on both side walls of the top of the crushing box (4), the inner side of the material drop platform (407) is tilted downward, and the inner side of the material drop platform (407) extends to the middle position of the crushing roller (401).

6. The coal gasification fine slag crushing and conveying device according to claim 1, characterized in that: The loading assembly comprises two first conveyor belts (1) and two second conveyor belts (3), and the two first conveyor belts (1) and the two second conveyor belts (3) are evenly arranged on both sides of the crushing box (4), the first conveyor belts (1) are arranged horizontally, and the second conveyor belts (3) are arranged obliquely upward.

7. The crushing and conveying device for coal gasification fine slag according to claim 6, characterized in that: The height of the first conveyor belt (1) is higher than the height of the bottom end of the second conveyor belt (3), the bottom end of the second conveyor belt (3) is arranged at the end of the first conveyor belt (1), and the top end of the second conveyor belt (3) extends to the top of the crushing box (4).

8. The coal gasification fine slag crushing and conveying device according to claim 1, characterized in that: The feeding assembly comprises a transmission roller (603) rotatably mounted at the top and bottom of a feeder (6); a third motor (601) is fixedly mounted on the side wall of the feeder (6); the output end of the third motor (601) is fixedly connected to the central axis of the bottom transmission roller (603); a conveyor belt (605) is arranged on the outer side of the transmission roller (603); a plurality of transfer hoppers (606) are evenly and fixedly mounted on the outer side of the conveyor belt (605); a loading hopper (604) is fixedly mounted at the bottom end of the feeder (6); a discharge hopper (602) is fixedly mounted at the top end of the feeder (6); the loading hopper (604) is located at the bottom end of a discharge plate (406); and the discharge hopper (602) extends to the top end of a storage tank (7).

9. The crushing and conveying device for coal gasification fine slag according to claim 8, characterized in that: The upper hopper (604) is configured as an arc-shaped hopper. The upper hopper (604) is made of the same rubber material as the conveyor belt (605). The side wall of the upper hopper (604) is fixedly connected to the conveyor belt (605).

10. The coal gasification fine slag crushing and conveying device according to claim 6, characterized in that: A PLC controller (2) is fixedly mounted on the side wall of one of the first conveyor belts (1); the PLC controller (2) is electrically connected to the first motor (404), the second motor (501), the third motor (601), the solenoid valve (702) and the driving sources of the first conveyor belt (1) and the second conveyor belt (3).

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