Material crushing device for belt tail pulley

Abstract

The utility model discloses a material crushing device for a belt tail wheel. The material crushing device comprises an iron sheet cover, a guide cover and a crushing assembly, the iron sheet cover is of a hollow cylinder structure with the upper end open and is vertically arranged between the belt and the discharging opening. The lower end of the iron sheet cover is coaxially communicated with the large-diameter end of the discharging port in a sealed mode, the upper end of the iron sheet cover and the belt are arranged in a spaced mode, and the iron sheet cover does not interfere with the conveying operation of the belt. A guide cover and a crushing assembly are horizontally arranged in the iron sheet cover relative to the position right below the discharging end of the belt in an up-down spaced mode, filter cakes falling from the discharging end of the belt are guided into the working range of the crushing assembly through the guide cover, and the filter cakes fall into the rotary hearth furnace through the discharging port after being scattered through the crushing assembly. According to the utility model, the crushing component is arranged, so that the filter cake entering the blanking port through the belt can be scattered and cannot be lumped, the uniformity and controllability of each component in the carbon blending process in the subsequent rotary hearth furnace process are ensured, and the stability and the accuracy are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary hearth furnaces, in particular to a material crushing device for a belt tail wheel. Background Art

[0002] The rotary hearth furnace process is to bake metallurgical iron-zinc-containing dust and mud such as blast furnace bag ash, sintering ash, and steelmaking ash through a mixed briquetting rotary hearth furnace to form metallized pellets. Therefore, the amount of carbon between the raw materials will directly affect the dezincification rate and pulverization rate of the rotary hearth furnace pellets. For high-chlorine ashes such as blast furnace bag ash and sintering ash directly used in the rotary hearth furnace process, it will cause corrosion to the equipment and greatly affect the service life of the equipment. Therefore, before this, the blast furnace bag ash and sintering ash need to be washed and dechlorinated, and the resulting filter cake is then transported to the rotary hearth furnace by a belt conveyor for mixing. However, since the filter cakes after the filter press are in blocks, they are easily uneven in the material pit during the process of being transported to the digestion pit by a feeder for digestion, which easily leads to the inadequate control of the material ratio in the production process. Therefore, the above problems need to be solved urgently. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a material crushing device for a belt tail wheel. By setting a crushing component, the filter cake entering the discharge port through the belt can be broken up so that it does not form lumps, thereby ensuring that the various components in the carbon blending process in the subsequent rotary hearth furnace process are uniformly controllable, ensuring stability and accuracy, thereby improving the balling quality of the rotary hearth furnace process, reducing the powdering rate of the balls, and increasing the dezincification rate.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: the utility model is a material crushing device for a belt tail wheel, comprising a belt and a discharge port, wherein the discharge end of the belt is arranged at intervals just above the discharge port, and the filter cake is transported by the belt and falls into the discharge port; its innovation lies in: it also includes an iron cover, a guide cover and a crushing assembly; the iron cover is a hollow cylindrical structure with an open upper end, and is vertically arranged between the belt and the discharge port; the lower end of the iron cover is coaxially sealed and connected with the large diameter end of the discharge port, and its upper end is spaced from the belt and does not interfere with the transmission operation of the belt; inside the iron cover, a guide cover and a crushing assembly are horizontally arranged at intervals above and below relative to the discharge end of the belt, and the filter cake falling through the discharge end of the belt is guided into the working range of the crushing assembly by the guide cover, and after the filter cake is broken up by the crushing assembly, it falls into the rotary hearth furnace through the discharge port.

[0005] Preferably, the inner diameter of the iron cover is larger than the width of the belt, and covers the discharge end of the belt therein, thereby ensuring that all filter cakes falling from the discharge end of the belt fall into the iron cover.

[0006] Preferably, the guide cover is a horizontally arranged funnel-shaped structure, and is coaxially sleeved with the iron cover; the upper end of the guide cover is a large-diameter end, and matches the interior of the iron cover, and is coaxially fixedly connected to the inner wall of the iron cover; the lower end of the guide cover is a small-diameter end, and its inner diameter matches the working range of the crushing assembly, thereby ensuring that the filter cake dropped through the belt discharge end falls completely into the working range of the crushing assembly.

[0007] Preferably, a plurality of fixing rods are evenly spaced horizontally along the circumferential direction of the outer conical surface of the guide cover near its small diameter end, and the other end of each fixing rod is fixedly connected to the corresponding position of the inner wall of the iron cover, thereby fixing and strengthening the guide cover through the fixing rods.

[0008] Preferably, a plurality of guide tubes are evenly distributed and vertically arranged in a matrix at a lower position inside the guide cover, and adjacent guide tubes are arranged in parallel and close to each other, and the coverage area of ​​all the guide tubes matches the inner diameter of the small diameter end of the guide cover, thereby ensuring that the filter cake is evenly dispersed within the working range of the crushing assembly through the guide tubes.

[0009] Preferably, the internal area of ​​each guide tube is 2 to 3 times the maximum filter cake coverage range, and it is necessary to ensure that the filter cake will not be blocked in the corresponding guide tube during the guidance process through the guide tube; the length of each guide tube is half the height of the guide cover, and its lower end is flush with the lower end surface of the guide cover; the wall thickness of each guide tube needs to ensure that the filter cake will not stay on the upper end surface of the adjacent guide tube.

[0010] Preferably, it also includes a filling block and a guide block; a filling block matching therewith is coaxially and horizontally sleeved and fixed between the outer circumferential surface of the guide tube in the outermost circle and the inner conical surface of the guide cover, and the upper end surface of the filling block and the upper end surface of each guide tube are arranged in the same horizontal plane, and the guide tubes are fixed and strengthened, thereby ensuring that the filter cake can completely fall into the corresponding guide tube; a guide block is coaxially sleeved on the upper end surface of the filling block relative to the guide cover, and the guide block is a hollow cylindrical structure matching the guide cover, the inner diameter of the lower end of the guide block matches the coverage range of all the guide tubes, and its lower end surface is fixedly connected to the upper end surface of the filling block; the outer surface of the guide block is a conical surface matching the inner conical surface of the guide cover, and is coaxially sleeved with the inner conical surface of the guide cover; the inner upper end of the guide block is a large diameter end, and the lower end is a small diameter end, thereby forming a conical shape, and guiding the filter cake dropped into the guide cover to the corresponding guide tube.

[0011] Preferably, the crushing assembly includes a driving reduction motor, a coupling, a gear cylinder, a rotating shaft, a fixed base, a main crushing knife and an auxiliary crushing tooth; a rotating shaft is coaxially arranged horizontally and laterally at intervals on the left and right sides of the interior of the iron cover relative to the area directly below the guide cover, and the right end of the rotating shaft on the right side is rotatably connected to the corresponding position of the right inner wall of the iron cover through a bearing; the left end of the rotating shaft on the left side is coaxially connected to the right end of the coupling, and the left end of the coupling extends horizontally and laterally to the left out of the left outer side surface of the iron cover, and is linked to the output end of the driving reduction motor, and the driving reduction motor is horizontally and laterally arranged at a corresponding position on the floor; a gear cylinder is horizontally and laterally arranged between the two rotating shafts relative to the inside of the iron cover, and the two ends of the gear cylinder are respectively connected to the The corresponding rotating shaft is screwed and fixed, and then under the drive of the driving reduction motor, the gear cylinder rotates around its own axis; a number of stirring layers are arranged in sequence from left to right on the outer circumferential surface of the gear cylinder, and a number of main crushing knives are evenly spaced and inclined along the circumferential direction in each stirring layer, each of the main crushing knives is inclined and parallel, and its fixed end is fixedly connected to the gear cylinder through a fixed base, and the other end is arranged without interfering with the guide cover and the iron cover; a number of auxiliary crushing teeth are evenly spaced on each of the main crushing knives, and the auxiliary crushing teeth on adjacent main crushing knives do not interfere with each other, and then under the drive of the driving reduction motor, the main crushing knives and the auxiliary crushing teeth rotate with the gear cylinder to crush the filter cake.

[0012] Preferably, the action of the driving reduction motor is synchronized with the action of the belt, and then when the belt is transmitting, the driving reduction motor is started, and drives the main crushing knife and the auxiliary crushing teeth to perform crushing operations.

[0013] Preferably, each of the fixed bases is fixedly installed at a corresponding position on the outer circumferential surface of the gear cylinder, and the fixed end of each of the main crushing knives is respectively sleeved in the corresponding fixed base and screwed and fixed by bolts, thereby facilitating disassembly and replacement.

[0014] Beneficial effects of the utility model:

[0015] (1) The utility model provides a crushing component to break up the filter cake entering the discharge port through the belt so that it does not form lumps, thereby ensuring that the various components in the subsequent carbon blending process of the rotary hearth furnace are uniformly controllable, ensuring stability and accuracy, thereby improving the balling quality of the rotary hearth furnace process, reducing the powdering rate of the balls, and improving the dezincification rate;

[0016] (2) The utility model facilitates the uniform dispersion of the filter cake on the belt into the working range of the crushing component through the coordinated use of the guide cover and the guide tube, thereby improving the crushing effect;

[0017] (3) The main crushing knife of the utility model adopts an inclined design, which can effectively increase the crushing area and avoid the occurrence of the filter cake not being broken up; at the same time, the main crushing knife and the fixed base are screwed together, which is convenient for disassembly and replacement of the main crushing knife. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 The utility model is a structural schematic diagram of a material crushing device for a belt tail wheel.

[0020] Figure 2 for Figure 1 Side view of the middle gear barrel section.

[0021] Among them, 1-feeding port; 2-floor; 3-iron cover; 4-belt; 5-filter cake; 6-driving reduction motor; 7-coupling; 8-gear cylinder; 9-fixed base; 10-main crushing knife; 11-auxiliary crushing teeth; 12-guide cover; 13-fixed rod; 14-guide tube; 15-rotating shaft; 16-filling block; 17-guide block. DETAILED DESCRIPTION

[0022] The technical solution of the utility model will be clearly and completely described below through specific implementation methods.

[0023] The utility model is a material crushing device for a belt tail wheel, comprising an iron cover 3, a guide cover 12 and a crushing assembly; the specific structure is as follows Figure 1 , Figure 2 As shown, the discharge end of the belt 4 is spaced just above the discharge port 1, and the filter cake 5 is transported by the belt 4 and falls into the discharge port 1; the iron cover 3 is a hollow cylindrical structure with an open upper end, and is vertically arranged between the belt 4 and the discharge port 1; the lower end of the iron cover 3 is coaxially sealed and connected with the large diameter end of the discharge port 1, and its upper end is spaced from the belt 4 and does not interfere with the transmission operation of the belt 4; wherein, the inner diameter of the iron cover 3 is greater than the width of the belt 4, and the discharge end of the belt 4 is covered therein, thereby ensuring that the filter cake 5 that falls through the discharge end of the belt 4 all falls into the iron cover 3.

[0024] The utility model also has a guide cover 12 and a crushing assembly arranged horizontally at intervals above and below the discharge end of the belt 4 inside the iron cover 3, and the filter cake 5 dropped from the discharge end of the belt 4 is guided to the working range of the crushing assembly by the guide cover 12, and the filter cake 5 is broken up by the crushing assembly and then dropped into the rotary hearth furnace through the discharge port 1; Figure 1 As shown, the guide cover 12 is a horizontally arranged funnel-shaped structure, and is coaxially sleeved with the iron cover 3; the upper end of the guide cover 12 is a large-diameter end, and matches the interior of the iron cover 3, and is coaxially fixedly connected to the inner wall of the iron cover 3; the lower end of the guide cover 12 is a small-diameter end, and its inner diameter matches the working range of the crushing component, thereby ensuring that the filter cake 5 dropped from the discharge end of the belt 4 completely falls into the working range of the crushing component.

[0025] like Figure 1 As shown, a number of fixing rods 13 are evenly spaced horizontally along the circumferential direction of the outer conical surface of the guide cover 12 near its small diameter end, and the other end of each fixing rod 13 is fixedly connected to the corresponding position of the inner wall of the iron cover 3, thereby fixing and strengthening the guide cover 12 through the fixing rods 13.

[0026] The utility model also has several guide tubes 14 evenly distributed and staggered vertically arranged in a matrix at the lower position inside the guide cover 12, and the adjacent guide tubes 14 are arranged in parallel and close to each other, and the coverage area of ​​all the guide tubes 14 matches the inner diameter of the small diameter end of the guide cover 12, thereby ensuring that the filter cake 5 is evenly dispersed within the working range of the crushing component through the guide tubes 14; Figure 1 As shown, the internal area of ​​each guide tube 14 is 2 to 3 times the coverage of the largest filter cake 5, and it is necessary to ensure that the filter cake 5 will not be blocked in the corresponding guide tube 14 during the process of being guided by the guide tube 14; the length of each guide tube 14 is half the height of the guide cover 12, and its lower end is flush with the lower end surface of the guide cover 12; the wall thickness of each guide tube 14 must ensure that the filter cake 5 will not stay on the upper end surface of the adjacent guide tube 14.

[0027] like Figure 1 As shown, a filling block 16 matching with the outer circumferential surface of the outermost circle of guide tubes 14 and the inner conical surface of the guide cover 12 is coaxially and horizontally sleeved and fixed, and the upper end surface of the filling block 16 and the upper end surface of each guide tube 14 are arranged in the same horizontal plane, and the guide tubes 14 are fixed and strengthened, thereby ensuring that the filter cake 5 can completely fall into the corresponding guide tube 14.

[0028] like Figure 1As shown, a guide block 17 is coaxially sleeved on the upper end surface of the filling block 16 relative to the guide cover 12, and the guide block 17 is a hollow cylindrical structure matching the guide cover 12, the inner diameter of the lower end of the guide block 17 matches the coverage of all the guide tubes 14, and its lower end surface is fixedly connected to the upper end surface of the filling block 16; the outer surface of the guide block 17 is a conical surface matching the inner conical surface of the guide cover 12, and is coaxially sleeved with the inner conical surface of the guide cover 12; the inner upper end of the guide block 17 is a large-diameter end, and the lower end is a small-diameter end, thereby forming a conical shape, and guiding the filter cake 5 dropped into the guide cover 12 to the corresponding guide tube 14.

[0029] The utility model crushing assembly includes a driving reduction motor 6, a coupling 7, a gear cylinder 8, a rotating shaft 15, a fixed base 9, a main crushing knife 10 and an auxiliary crushing tooth 11; Figure 1 , Figure 2 As shown, inside the iron cover 3, relative to the area directly below the guide cover 12, there are rotating shafts 15 arranged coaxially and horizontally at intervals on the left and right sides, and the right end of the rotating shaft 15 on the right side is rotatably connected to the corresponding position of the right inner wall of the iron cover 3 through a bearing; the left end of the rotating shaft 15 on the left side is coaxially connected to the right end of the coupling 7, and the left end of the coupling 7 horizontally extends to the left out of the left outer side of the iron cover 3, and is linked to the output end of the driving reduction motor 6, and the driving reduction motor 6 is horizontally and horizontally arranged at the corresponding position on the floor 2; between the two rotating shafts 15, there is also a gear cylinder 8 horizontally and horizontally arranged relative to the inside of the iron cover 3, and the two ends of the gear cylinder 8 are respectively screwed and fixed to the corresponding rotating shaft 15 through flanges, so that under the drive of the driving reduction motor 6, the gear cylinder 8 rotates around its own axis;

[0030] like Figure 1 , Figure 2 As shown, several stirring layers are arranged in sequence from left to right on the outer circumferential surface of the gear cylinder 8, and several main crushing knives 10 are arranged at intervals and tilted in each stirring layer along its circumferential direction. Each main crushing knife 10 is arranged tilted and parallel, and its fixed end is fixedly connected to the gear cylinder 8 through a fixed base 9, and its other end is arranged with the guide cover 12 and the iron cover 3 without interfering with each other; several auxiliary crushing teeth 11 are arranged at intervals and evenly on each main crushing knife 10, and the auxiliary crushing teeth 11 on adjacent main crushing knives 10 are arranged without interfering with each other, and then under the drive of the driving reduction motor 6, the main crushing knives 10 and the auxiliary crushing teeth 11 rotate with the gear cylinder 8 to crush and disperse the filter cake 5. Among them, the action of the driving reduction motor 6 is synchronized with the action of the belt 4, and then when the belt 4 is transmitting, the driving reduction motor 6 is started, and the main crushing knives 10 and the auxiliary crushing teeth 11 are driven to perform crushing operations.

[0031] like Figure 1 , Figure 2As shown, each fixed base 9 is fixedly installed at a corresponding position on the outer circumferential surface of the gear cylinder 8, and the fixed end of each main crushing knife 10 is respectively sleeved in the corresponding fixed base 9 and screwed and fixed by bolts, so as to facilitate disassembly and replacement.

[0032] The working principle of the utility model is as follows: the filter cake 5 falls into the guide cover 12 through the discharge end of the belt 4, and is guided to the corresponding guide tube 14 through the guide block 17, and then the filter cake 5 is evenly dispersed within the working range of the crushing component through the guide tube 14; then, under the drive of the driving reduction motor 6, the gear cylinder 8 rotates around its own axis, and drives the main crushing knife 10 and the auxiliary crushing teeth 11 to crush and scatter the filter cake 5; the broken filter cake 5 then falls into the rotary hearth furnace through the discharge port 1.

[0033] Beneficial effects of the utility model:

[0034] (1) The utility model provides a crushing component to break up the filter cake 5 entering the discharge port 1 through the belt 4 so that it does not form lumps, thereby ensuring that the various components in the subsequent carbon blending process of the rotary hearth furnace are uniformly controllable, ensuring stability and accuracy, thereby improving the ball quality of the rotary hearth furnace process, reducing the powdering rate of the balls, and improving the dezincification rate;

[0035] (2) The utility model facilitates the uniform dispersion of the filter cake 5 on the belt 4 into the working range of the crushing assembly through the coordinated use of the guide cover 12 and the guide tube 14, thereby improving the crushing effect;

[0036] (3) The main crushing knife 10 of the utility model adopts an inclined design, which can effectively increase the crushing area and avoid the occurrence of the filter cake 5 not being broken up; at the same time, the main crushing knife 10 and the fixed base 9 are screwed together, which is convenient for disassembly and replacement of the main crushing knife 10.

[0037] The embodiments described above are merely descriptions of preferred implementation modes of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering and technical personnel in the field should fall within the protection scope of the present invention. The technical contents for which protection is sought in the present invention have been fully recorded in the technical requirements.

Claims

1. A material crushing device for a belt tail wheel, comprising a belt and a discharge port, wherein the discharge end of the belt is arranged at intervals just above the discharge port, and the filter cake is transported by the belt and falls into the discharge port; characterized in that: It also includes an iron cover, a guide cover and a crushing assembly; the iron cover is a hollow cylindrical structure with an open upper end, and is vertically arranged between the belt and the discharge port; the lower end of the iron cover is coaxially sealed with the large-diameter end of the discharge port, and its upper end is spaced apart from the belt and does not interfere with the transmission operation of the belt; inside the iron cover, a guide cover and a crushing assembly are horizontally arranged with upper and lower intervals just below the discharge end of the belt, and the filter cake falling from the discharge end of the belt is guided into the working range of the crushing assembly by the guide cover, and after the filter cake is broken up by the crushing assembly, it falls into the rotary hearth furnace through the discharge port.

2. The material crushing device for a belt tail wheel according to claim 1 is characterized in that: The inner diameter of the iron cover is greater than the width of the belt, and covers the discharge end of the belt therein, thereby ensuring that all filter cakes dropped from the discharge end of the belt fall into the iron cover.

3. The material crushing device for a belt tail wheel according to claim 1 is characterized in that: The guide cover is a horizontally arranged funnel-shaped structure, and is coaxially sleeved with the iron cover; the upper end of the guide cover is a large-diameter end, and matches the interior of the iron cover, and is coaxially fixedly connected to the inner wall of the iron cover; the lower end of the guide cover is a small-diameter end, and its inner diameter matches the working range of the crushing assembly, thereby ensuring that the filter cake dropped through the belt discharge end falls completely into the working range of the crushing assembly.

4. The material crushing device for a belt tail wheel according to claim 3 is characterized in that: A number of fixing rods are evenly spaced horizontally along the circumference of the outer conical surface of the guide cover near its small diameter end, and the other end of each fixing rod is fixedly connected to the corresponding position of the inner wall of the iron cover, thereby fixing and strengthening the guide cover through the fixing rods.

5. The material crushing device for a belt tail wheel according to claim 3 is characterized in that: A plurality of guide tubes are evenly distributed and vertically arranged in a matrix at a lower position inside the guide cover. Adjacent guide tubes are arranged in parallel and close to each other, and the coverage area of ​​all the guide tubes matches the inner diameter of the small diameter end of the guide cover, thereby ensuring that the filter cake is evenly dispersed within the working range of the crushing assembly through the guide tubes.

6. The material crushing device for a belt tail wheel according to claim 5, characterized in that: The internal area of ​​each guide tube is 2 to 3 times the maximum filter cake coverage range, and it is necessary to ensure that the filter cake will not be blocked in the corresponding guide tube during the guidance process through the guide tube; the length of each guide tube is half the height of the guide cover, and its lower end is flush with the lower end surface of the guide cover; the wall thickness of each guide tube must ensure that the filter cake will not stay on the upper end surface of the adjacent guide tube.

7. The material crushing device for a belt tail wheel according to claim 5, characterized in that: The filter element is a kind of filter element with a plurality of guide tubes, each of which is provided with a plurality of guide tubes, and the plurality of guide tubes are provided ...

8. The material crushing device for a belt tail wheel according to claim 1, characterized in that: The crushing assembly includes a driving reduction motor, a coupling, a gear cylinder, a rotating shaft, a fixed base, a main crushing knife and an auxiliary crushing tooth; inside the iron cover, relative to the area directly below the guide cover, there are rotating shafts coaxially arranged at intervals on the left and right sides, and the right end of the rotating shaft on the right side is rotatably connected to the corresponding position of the right inner wall of the iron cover through a bearing; the left end of the rotating shaft on the left side is coaxially connected to the right end of the coupling, and the left end of the coupling extends horizontally and horizontally to the left out of the left outer side surface of the iron cover, and is linked to the output end of the driving reduction motor, and the driving reduction motor is horizontally and horizontally arranged at the corresponding position on the floor; between the two rotating shafts, there is a gear cylinder horizontally and horizontally arranged relative to the inside of the iron cover, and the two ends of the gear cylinder are respectively connected to the corresponding The rotating shaft is screwed and fixed, and then under the drive of the driving reduction motor, the gear cylinder rotates around its own axis; a number of stirring layers are arranged in sequence from left to right on the outer circumferential surface of the gear cylinder, and in each of the stirring layers, a number of main crushing knives are evenly spaced and inclined along the circumferential direction, each of the main crushing knives is inclined and parallel, and its fixed end is fixedly connected to the gear cylinder through a fixed base, and the other end is arranged without interfering with the guide cover and the iron cover; a number of auxiliary crushing teeth are evenly spaced on each of the main crushing knives, and the auxiliary crushing teeth on adjacent main crushing knives do not interfere with each other, and then under the drive of the driving reduction motor, the main crushing knives and the auxiliary crushing teeth rotate with the gear cylinder to crush and disperse the filter cake.

9. The material crushing device for a belt tail wheel according to claim 8, characterized in that: The action of the driving reduction motor is synchronized with the action of the belt, and when the belt is transmitting, the driving reduction motor is started, and drives the main crushing knife and the auxiliary crushing teeth to perform crushing operations.

10. The material crushing device for a belt tail wheel according to claim 8, characterized in that: Each of the fixed bases is fixedly installed at a corresponding position on the outer circumferential surface of the gear cylinder, and the fixed end of each of the main crushing knives is respectively sleeved in the corresponding fixed base and screwed and fixed by bolts, so as to facilitate disassembly and replacement.

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