A pyrite feeding device for preparing sulfuric acid

Abstract

The present invention discloses a pyrite feeding device for sulfuric acid preparation, including a crushing and processing component and a transmission mechanism, wherein a connecting and cleaning component assembled with bolts is arranged above one end of the crushing and processing component, and a rising feeding component connected with the crushing and processing component is sleeved on the upper bolt of the connecting and cleaning component. The device of the invention mainly utilizes the output power at the output end of the middle partition frame on the top side of the horizontal cabin to drive the output end to operate so that the screw group can output power, and the slider can drive the cleaning sheet to move back and forth, so that the product overflowed from the transmission mechanism can be input into the inclined cabin through the lower connecting pipe and the lower inclined pipe through the reciprocating cleaning sheet, and the overflowed material can be input to the target location again through the transmission mechanism under the cooperation of the speed change case, the speed change motor, the rotating rod, the spiral sheet and the upper cabin, so as to achieve the effect of saving material use.

Description

Technical Field

[0001] The invention relates to the technical field of sulfuric acid preparation, in particular to a pyrite feeding device for sulfuric acid preparation. Background Art

[0002] The preparation of sulfuric acid mainly adopts the contact method. Its raw materials include sulfur, pyrite, gypsum, etc., among which pyrite is the most important raw material. The process of preparing sulfuric acid by the contact method can be divided into three stages: gasification, contact oxidation, and absorption of sulfur trioxide. The raw material for producing sulfuric acid by the iron method is mainly sulfur ore. First, the sulfur ore is crushed into particles of appropriate size, and then put into a sintering machine for sintering to obtain sulfide iron ore. The sulfide iron ore reacts with air or oxygen to generate sulfur dioxide. The obtained sulfur dioxide is oxidized to sulfur trioxide by contact (contact chamber), reacts with nitric acid to generate nitrous acid, and then the nitrous acid is converted into nitric acid through oxidation reaction. Finally, the nitric acid reacts with water. Generate sulfuric acid. In industry, the preparation of sulfuric acid also involves specific chemical reaction equations and equipment, such as oxidation furnaces, absorption towers, etc. In the process of preparing nitric acid by ammonia oxidation, ammonia and air are used as raw materials, and an oxidation reaction is carried out at 800°C in an oxidation furnace. The generated NO reacts with oxygen to generate nitrogen dioxide when cooled. The nitrogen dioxide is absorbed by water in the absorption tower and converted into nitric acid under the action of excess oxygen in the air. When preparing a standard solution of sulfuric acid, 98% sulfuric acid, distilled water, beakers, measuring cylinders, measuring bottles, glass rods, sealed glass containers and other items are needed. The preparation steps include measuring liquid, dilution, pipetting, constant volume, etc., and finally a standard solution of sulfuric acid of a certain concentration is obtained.

[0003] When the existing oil drilling drill pipe is in use, such as application number CN201721280607.5, it involves a feeding device for preparing aluminum sulfate, including a feeding hopper, a sulfuric acid tank and a reactor, the feeding hopper includes an inlet, an outlet and a crushing chamber, the crushing chamber is provided with crushing teeth, the crushing teeth are connected to the motor, the lower end of the feeding hopper is connected to the feeding pipeline through a quick-release connector, the feeding pipeline is provided with a first unloading valve and a high-pressure air pump, the lower end of the feeding pipeline is connected to a metering tank, the outlet end of the metering tank extends into the reactor to connect to a fan-shaped spray head, a plurality of guide baffles are provided in the fan-shaped spray head, and the sulfuric acid tank is connected to a ball valve, a liquid pump, a flow meter and the reactor in sequence through an infusion pipe. The utility model has high automation, good feeding stability and high feeding accuracy, improves the mixing uniformity between the reaction materials, and improves the reaction rate and reaction uniformity; however, in the above technology, when the input materials are piled up, a lot of products will be wasted after feeding, which increases the cost of use. Therefore, we propose a pyrite feeding device for sulfuric acid preparation to solve the above problems. Summary of the invention

[0004] In view of the above problems, the present invention proposes a pyrite feeding device for the preparation of sulfuric acid, which mainly utilizes the output power at the output end of the middle partition frame on the top side of the transverse cabin to drive the output end to operate so that the screw group can output power, and the slider can drive the cleaning plate to move back and forth, so that the product overflowed from the transmission mechanism can be input into the inclined cabin through the lower connecting pipe and the lower inclined pipe through the reciprocating cleaning plate, and the overflowed material can be input to the target location through the transmission mechanism again through the cooperation of the speed change case, the speed change motor, the rotating rod, the spiral plate and the upper entry cabin, thereby achieving the effect of saving material usage.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A pyrite feeding device for preparing sulfuric acid includes a crushing processing component and a transmission mechanism, a connecting and cleaning component assembled with bolts is arranged above one end of the crushing processing component, and a rising feeding component sleeved with the crushing processing component is bolted on the upper side of the connecting and cleaning component, and a transmission mechanism sleeved with bolts is arranged on the inner end side of the connecting and cleaning component.

[0007] As a further technical solution, the crushing processing component includes a pad block, a combined base, an end frame, a crushing box, a baffle, a combined cover, a feed port, an inclined plate, a connecting square tube, an isolation rod, a drive motor, a crushing tooth group, a transmission gear group and an abrasive rod group, a combined base is arranged on the top side of the pad block, and an end frame is arranged above the side of the combined base, and a crushing box is arranged on the upper inner side of the end frame, a baffle is arranged on one end side of the crushing box, a combined cover assembled with bolts is arranged above the crushing box, and a feed port is arranged above the combined cover, and an inclined plate is arranged on the upper inner side of the feed port.

[0008] As a further technical solution, a driving motor is arranged on the upper side of the crushing box, and a crushing tooth group is arranged at the output end of the driving motor, a transmission gear group is arranged at the output end of the crushing tooth group, and an abrasive rod group is arranged at the output end of the transmission gear group.

[0009] As a further technical solution, the connecting cleaning component includes an assembly base, a lifting frame, a cross cabin, an end plate, an isolation block, an end sleeve, an output plate, a lower connecting pipe, a lower inclined pipe, a middle partition frame, a screw group, a slider and a cleaning sheet. The assembly base is bolted to the top of one end of the combined base, a lifting frame is arranged above the assembly base, and a cross cabin assembled with bolts is arranged at the upper inner end of the lifting frame, an end plate assembled with bolts is arranged at one end of the cross cabin, an isolation block is arranged on the inner bottom side of the cross cabin, an end sleeve assembled with bolts is arranged at the other end of the cross cabin, and an output plate is arranged on the lower outer side of the end sleeve.

[0010] As a further technical solution, a lower connecting pipe is arranged below one end of the transverse cabin, and a lower inclined pipe installed in a sleeve is arranged on the lower side of the lower connecting pipe, a middle partition frame is arranged on the inner top side of the transverse cabin, and a screw rod group is arranged at the output end of the middle partition frame, a threaded slider is arranged on the outer side of the screw rod group, and cleaning sheets are arranged on both sides of the slider.

[0011] As a further technical solution, the ascending feeding assembly includes an inclined frame, a speed change case, a speed change motor, a first cover, an inclined cabin, a second cover, a rotating rod, a spiral sheet and an upper entry cabin. The inclined frame is bolted to the top side of the horizontal cabin, a speed change case is provided at the top of the inclined frame, and a speed change motor is provided at the input end of the speed change case. A first cover bolted on is provided on the inner end side of the speed change case, an inclined cabin is provided on one side of the first cover, and a second cover bolted on is provided at the bottom end of the inclined cabin.

[0012] As a further technical solution, a rotating rod connected to the output end of the transmission case is arranged inside the inclined cabin, and a spiral sheet is arranged on the outer side of the rotating rod, and an upper entry cabin installed in a sleeve manner is arranged on the upper side of the inclined cabin.

[0013] As a further technical solution, the transmission mechanism includes a bolt base plate, a gearbox, an output motor, a meshing gear set, a rolling shaft, a conveyor belt and a supporting rod set. The bolt base plate is bolted to the outside of one end of the cross cabin, a gearbox is arranged on the outside of the bolt base plate, and an output motor is arranged on the outside of one end of the gearbox, and a meshing gear set is arranged at the output end of the output motor.

[0014] As a further technical solution, a rolling shaft is arranged at the output end of the meshing gear set, and a conveyor belt installed around the outer side of the rolling shaft is arranged, and a plurality of parallel distributed support rod groups are arranged in the inner track of the conveyor belt.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The device of the invention mainly utilizes the output power at the output end of the middle partition frame on the top side of the horizontal cabin to drive the output end to operate so that the screw group can output power, and the slider can drive the cleaning piece to move back and forth. In this way, the products overflowed from the transmission mechanism can be input into the inclined cabin through the lower connecting pipe and the lower inclined pipe through the reciprocating cleaning piece. With the cooperation of the speed change case, speed change motor, rotating rod, spiral piece and upper cabin, the overflowed materials can be input to the target location through the transmission mechanism again, thereby achieving the effect of saving material use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is a schematic diagram of the structure of a pyrite feeding device for preparing sulfuric acid;

[0018] Figure 2 It is a schematic diagram of the structure of the present invention from a side view;

[0019] Figure 3 It is a schematic diagram of the structure of the crushing processing component in the present invention;

[0020] Figure 4 It is a schematic cross-sectional structure diagram of the connection cleaning component in the present invention;

[0021] Figure 5 It is a structural schematic diagram of the end sleeve and the output plate in the present invention;

[0022] Figure 6 It is a structural schematic diagram of the ascending feeding assembly in the present invention;

[0023] Figure 7 It is a structural schematic diagram of the transmission mechanism in the present invention.

[0024] In the figure: 1. crushing processing component; 101. pad; 102. combined base; 103. end frame; 104. crushing box; 105. baffle; 106. combined cover; 107. feed port; 108. inclined plate; 109. connecting square tube; 1010. isolation rod; 1011. driving motor; 1012. crushing tooth group; 1013. transmission gear group; 1014. abrasive rod group; 2. connecting cleaning component; 201. assembly base; 202. lifting frame; 203. cross cabin; 204. end plate; 205. isolation block; 206. end sleeve; 207. output plate; 208 , lower connecting pipe; 209, lower inclined pipe; 2010, middle partition frame; 2011, screw rod group; 2012, slider; 2013, cleaning piece; 3, rising feed assembly; 301, inclined frame; 302, speed change case; 303, speed change motor; 304, first cover; 305, inclined cabin; 306, second cover; 307, rotating rod; 308, spiral sheet; 309, upper cabin; 4, transmission mechanism; 401, bolt base plate; 402, gearbox; 403, output motor; 404, meshing gear set; 405, rolling shaft; 406, conveyor belt; 407, bearing rod group. DETAILED DESCRIPTION

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0027] 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.

[0028] See also Figure 1-7 In an embodiment of the present invention, a pyrite feeding device for preparing sulfuric acid includes a crushing processing component 1 and a transmission mechanism 4, a connecting and cleaning component 2 assembled with bolts is arranged above one end of the crushing processing component 1, and a rising feeding component 3 sleeved with the crushing processing component 1 is bolted on the upper side of the connecting and cleaning component 2, and a transmission mechanism 4 sleeved with bolts is arranged on the inner end side of the connecting and cleaning component 2.

[0029] The crushing processing component 1 includes a cushion block 101, a combined base 102, an end frame 103, a crushing box 104, a baffle 105, a combined cover 106, a feed port 107, an inclined plate 108, a connecting square tube 109, an isolation rod 1010, a driving motor 1011, a crushing tooth group 1012, a transmission gear group 1013 and an abrasive rod group 1014. The combined base 102 is arranged on the top side of the cushion block 101, and the end frame 103 is arranged above the side of the combined base 102, and the crushing box 104 is arranged on the upper inner side of the end frame 103, a baffle 105 is arranged on one end side of the crushing box 104, a combined cover 106 assembled with bolts is arranged above the crushing box 104, and a feed port 107 is arranged above the combined cover 106, and an inclined plate 108 is arranged on the upper inner side of the feed port 107.

[0030] In an embodiment of the present invention, when in use, the equipment is placed at the processing site through the pad 101, and after the combined base 102 is installed through the pad 101, the connecting cleaning component 2, the rising feeding component 3, and the transmission mechanism 4 are assembled. After assembly, the user inputs the material to be placed into the feed port 107, and then inputs it into the crushing box 104 under the combined cover 106 through the feed port 107 and the inclined plate 108.

[0031] A driving motor 1011 is disposed on one side above the crushing box 104 , and a crushing tooth set 1012 is disposed at the output end of the driving motor 1011 , a transmission gear set 1013 is disposed at the output end of the crushing tooth set 1012 , and an abrasive rod set 1014 is disposed at the output end of the transmission gear set 1013 .

[0032] In the embodiment of the present invention, after the material enters the crushing box 104, the drive motor 1011 is started to output power to drive the output end to operate, so that the output power of the drive motor 1011 can drive the crushing tooth group 1012 in the crushing box 104 to perform output transmission operation, so that the rotation of the crushing tooth group 1012 can drive the transmission gear group 1013 to engage and transmit the operation, so that the output end of the transmission gear group 1013 can operate and drive the abrasive rod group 1014 to operate, so that the crushing tooth group 1012, the transmission gear group 1013 and the abrasive rod group 1014 work together to achieve the effect of effective crushing of the raw materials, and after crushing, the product is input into the inclined cabin 305.

[0033] The connecting cleaning component 2 includes an assembly base 201, a lifting frame 202, a transverse cabin 203, an end plate 204, an isolation block 205, an end sleeve 206, an output plate 207, a lower connecting pipe 208, a lower inclined pipe 209, a middle partition frame 2010, a screw group 2011, a slider 2012 and a cleaning sheet 2013. The assembly base 201 is bolted to the top of one end of the combined base 102. A lifting frame 202 is arranged above the assembly base 201, and a transverse cabin 203 assembled with bolts is arranged at the upper inner end of the lifting frame 202. An end plate 204 assembled with bolts is arranged at one end of the transverse cabin 203, an isolation block 205 is arranged on the inner bottom side of the transverse cabin 203, an end sleeve 206 assembled with bolts is arranged at the other end of the transverse cabin 203, and an output plate 207 is arranged on the lower outer side of the end sleeve 206.

[0034] In an embodiment of the present invention, when the material is running, the material passes through the operation of the transmission mechanism 4 so that the material is input to the side of the isolation block 205 at one end of the transverse cabin 203, and the material is input to the output plate 207 on the outside of one end of the end sleeve 206 and output to the target position.

[0035] A lower connecting pipe 208 is provided below one end of the transverse cabin 203, and a lower inclined pipe 209 is provided on the lower side of the lower connecting pipe 208. A middle partition frame 2010 is provided on the inner top side of the transverse cabin 203, and a screw rod group 2011 is provided at the output end of the middle partition frame 2010. A threaded slider 2012 is provided on the outer side of the screw rod group 2011, and cleaning sheets 2013 are provided on both sides of the slider 2012.

[0036] In an embodiment of the present invention, when the material falls off the position, the output end on the middle partition frame 2010 is used to output power to drive the output end to operate, so that the output end on the middle partition frame 2010 drives the screw rod group 2011 to operate, so that the slider 2012 and the cleaning sheet 2013 can input the scattered materials into the lower inclined pipe 209 through the lower connecting pipe 208.

[0037] The ascending feeding assembly 3 includes an inclined frame 301, a speed change case 302, a speed change motor 303, a first cover 304, an inclined cabin 305, a second cover 306, a rotating rod 307, a spiral sheet 308 and an upper cabin 309. The inclined frame 301 is bolted to the top side of the transverse cabin 203. The speed change case 302 is arranged at the top of the inclined frame 301, and the speed change motor 303 is arranged at the input end of the speed change case 302. The first cover 304 which is bolted is arranged on the inner end side of the speed change case 302, the inclined cabin 305 is arranged on one side of the first cover 304, and the second cover 306 which is bolted is arranged at the bottom end of the inclined cabin 305.

[0038] In an embodiment of the present invention, materials are input into the inclined compartment 305 through the lower inclined pipe 209. After the variable speed motor 303 outputs power to drive the output end to operate, the variable speed motor 303 outputs power to drive the variable speed case 302 to output transmission, so that the rotating rod 307 and the spiral sheet 308 in the inclined compartment 305 operate, so that the materials can be input into the connected cleaning component 2 again to achieve the effect of cleaning and saving materials.

[0039] A rotating rod 307 connected to the output end of the transmission case 302 is arranged inside the inclined cabin 305, and a spiral sheet 308 is arranged on the outer side of the rotating rod 307. An upper entry cabin 309 which is sleeved and installed is arranged on the upper side of the inclined cabin 305.

[0040] In an embodiment of the present invention, after the material enters the inclined cabin 305, the variable speed motor 303 is used to output power to drive the output end to operate, so that the variable speed motor 303 output power can drive the variable speed chassis 302 to output transmission, so that the rotating rod 307 and the spiral sheet 308 in the inclined cabin 305 are operated to drive the material to be input to the top of the inclined cabin 305, and then input into the horizontal cabin 203 from the upper cabin 309.

[0041] The transmission mechanism 4 includes a bolt base plate 401, a gearbox 402, an output motor 403, a meshing gear set 404, a rolling shaft 405, a conveyor belt 406 and a supporting rod set 407. The bolt base plate 401 is bolted to the outside of one end of the transverse cabin 203, the gearbox 402 is arranged on the outside of the bolt base plate 401, and the output motor 403 is arranged on the outside of one end of the gearbox 402, and the meshing gear set 404 is arranged at the output end of the output motor 403.

[0042] In an embodiment of the present invention, after the material is input into the conveyor belt 406 in the transverse cabin 203, the output power of the output motor 403 is used to drive the output end to operate, so that the output power of the output motor 403 can drive the meshing gear set 404 in the gearbox 402 to perform meshing transmission operation, and the operation of the meshing gear set 404 can drive the rolling shaft 405 to operate.

[0043] The output end of the meshing gear set 404 is provided with a rolling shaft 405 , and the outer side of the rolling shaft 405 is provided with a conveyor belt 406 which is installed around it, and the inner track of the conveyor belt 406 is provided with a plurality of parallel distributed bearing rod groups 407 .

[0044] In the embodiment of the present invention, after the rolling shaft 405 is running, the running of the rolling shaft 405 can drive the conveyor belt 406 carried by the supporting rod group 407 to drive the material to run.

[0045] The working principle of the present invention is as follows: when in use, the device is placed at the processing site through the cushion block 101, and after the combined base 102 is installed through the cushion block 101, the connecting cleaning component 2, the rising feeding component 3, and the transmission mechanism 4 are assembled. After assembly, the user inputs the material to be placed into the feed port 107, and then inputs it into the crushing box 104 under the combined cover 106 through the feed port 107 and the inclined plate 108. When the material enters the crushing box 104, the drive motor 1011 is started to output power to drive the output end to operate, so that the output power of the drive motor 1011 can drive the crushing tooth group 1012 in the crushing box 104 to output transmission. The grinding teeth set 1012 is operated so that the rotation of the grinding teeth set 1012 can drive the transmission gear set 1013 to mesh and transmit the operation, so that the output end of the transmission gear set 1013 can operate and drive the abrasive rod set 1014 to operate. In this way, the grinding teeth set 1012, the transmission gear set 1013 and the abrasive rod set 1014 cooperate with each other to achieve the effect of effective grinding and processing of the raw materials. After the materials are crushed, the products are input into the inclined cabin 305. When the materials enter the inclined cabin 305, the output power of the variable speed motor 303 is used to drive the output end to operate, so that the output power of the variable speed motor 303 can drive the variable speed chassis 302 to output the transmission, so that the rotating rod 307 in the inclined cabin 305 and After the spiral blade 308 is running, it drives the material to be input to the top of the inclined cabin 305, and then input into the horizontal cabin 203 from the upper cabin 309. After the material is input into the conveyor belt 406 in the horizontal cabin 203, the output power of the output motor 403 is used to drive the output end to run, so that the output power of the output motor 403 can drive the meshing gear set 404 in the gearbox 402 to perform meshing transmission operation, and the operation of the meshing gear set 404 can drive the rolling shaft 405 to run. After the rolling shaft 405 is running, the operation of the rolling shaft 405 can drive the conveyor belt 406 carried by the bearing rod set 407 to drive the material to run. When the material After the operation, the material passes through the operation of the transmission mechanism 4, so that the material is input to the side of the isolation block 205 at one end of the transverse cabin 203, so that the material is input to the output plate 207 on the outer side of one end of the end sleeve 206 and output to the target position. When the material falls off the position, the output end on the middle partition frame 2010 is used to output power to drive the output end to operate, so that the output end on the middle partition frame 2010 drives the screw rod group 2011 to operate, so that the slider 2012 and the cleaning sheet 2013 can input the scattered materials into the lower inclined pipe 209 through the lower connecting pipe 208, and the materials are input into the inclined cabin 305 through the lower inclined pipe 209. After the variable speed motor 303 outputs power to drive the output end to operate,The variable speed motor 303 outputs power to drive the variable speed case 302 to output transmission, so that the rotating rod 307 and the spiral piece 308 in the inclined cabin 305 can operate and the materials can be input into the connecting cleaning component 2 again to achieve the effect of cleaning and saving materials.

[0046] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0047] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A pyrite feeding device for preparing sulfuric acid, comprising a crushing processing component (1) and a transmission mechanism (4), characterized in that: A connecting cleaning component (2) assembled with bolts is arranged above one end of the crushing processing component (1), and a rising feeding component (3) sleeved with the crushing processing component (1) is bolted on the upper side of the connecting cleaning component (2), and a transmission mechanism (4) sleeved with bolts is arranged on the inner end side of the connecting cleaning component (2).

2. A pyrite feeding device for sulfuric acid preparation according to claim 1, characterized in that: The pulverizing component (1) comprises a cushion block (101), a combined base (102), an end frame (103), a pulverizing box (104), a baffle (105), a combined cover (106), a feed port (107), an inclined plate (108), a connecting square tube (109), an isolation rod (1010), a driving motor (1011), a pulverizing tooth group (1012), a transmission gear group (1013) and an abrasive rod group (1014). The top side of the cushion block (101) is provided with a combined base (102). 102), and an end frame (103) is arranged above the side of the combined base (102), and a crushing box (104) is arranged on the upper inner side of the end frame (103), a baffle (105) is arranged on one end side of the crushing box (104), a combined cover (106) assembled with bolts is arranged above the crushing box (104), and a feed port (107) is arranged above the combined cover (106), and an inclined plate (108) is arranged on the upper inner side of the feed port (107).

3. A pyrite feeding device for sulfuric acid preparation according to claim 2, characterized in that: A driving motor (1011) is arranged on one side above the crushing box (104), and a crushing tooth group (1012) is arranged at the output end of the driving motor (1011), a transmission gear group (1013) is arranged at the output end of the crushing tooth group (1012), and an abrasive rod group (1014) is arranged at the output end of the transmission gear group (1013).

4. A pyrite feeding device for sulfuric acid preparation according to claim 2, characterized in that: The connecting cleaning assembly (2) comprises an assembly base (201), a lifting frame (202), a transverse cabin (203), an end plate (204), an isolation block (205), an end sleeve (206), an output plate (207), a lower connecting pipe (208), a lower inclined pipe (209), a middle partition frame (2010), a screw rod group (2011), a slider (2012) and a cleaning sheet (2013). The assembly base (201) is bolted to the top of one end of the combined base (102). A lifting frame (202) is arranged above the assembly base (201), and a transverse cabin (203) assembled with bolts is arranged at the upper inner end of the lifting frame (202), an end plate (204) assembled with bolts is arranged at one end of the transverse cabin (203), an isolation block (205) is arranged on the inner bottom side of the transverse cabin (203), an end sleeve (206) assembled with bolts is arranged at the other end of the transverse cabin (203), and an output plate (207) is arranged on the lower outer side of the end sleeve (206).

5. A pyrite feeding device for sulfuric acid preparation according to claim 4, characterized in that: A lower connecting pipe (208) is provided below one end of the transverse cabin (203), and a sleeve-mounted lower inclined pipe (209) is provided on the lower side of the lower connecting pipe (208); a middle partition frame (2010) is provided on the inner top side of the transverse cabin (203), and a screw rod group (2011) is provided at the output end of the middle partition frame (2010); a threaded slider (2012) is provided on the outer side of the screw rod group (2011), and cleaning sheets (2013) are provided on both sides of the slider (2012).

6. A pyrite feeding device for sulfuric acid preparation according to claim 4, characterized in that: The ascending feeding assembly (3) comprises an inclined frame (301), a speed change case (302), a speed change motor (303), a first cover (304), an inclined cabin (305), a second cover (306), a rotating rod (307), a spiral sheet (308) and an upper entry cabin (309); the inclined frame (301) is bolted to the top side of the transverse cabin (203); a speed change case (302) is arranged at the top end of the inclined frame (301); and a speed change motor (303) is arranged at the input end of the speed change case (302); a first cover (304) is arranged at the inner end side of the speed change case (302) and is sleeved with bolts; a inclined cabin (305) is arranged on one side of the first cover (304); and a second cover (306) is arranged at the bottom end of the inclined cabin (305) and is sleeved with bolts.

7. A pyrite feeding device for sulfuric acid preparation according to claim 6, characterized in that: A rotating rod (307) connected to the output end of the transmission case (302) is arranged inside the inclined cabin (305), and a spiral sheet (308) is arranged on the outer side of the rotating rod (307). An upper entry cabin (309) which is sleeved and installed is arranged on the upper side of the inclined cabin (305).

8. A pyrite feeding device for sulfuric acid preparation according to claim 4, characterized in that: The transmission mechanism (4) comprises a bolt base plate (401), a gearbox (402), an output motor (403), a meshing gear set (404), a rolling shaft (405), a conveyor belt (406) and a bearing rod set (407); the bolt base plate (401) is bolted to the outside of one end of the transverse cabin (203); a gearbox (402) is arranged on the outside of the bolt base plate (401); an output motor (403) is arranged on the outside of one end of the gearbox (402); and a meshing gear set (404) is arranged at the output end of the output motor (403).

9. A pyrite feeding device for sulfuric acid preparation according to claim 8, characterized in that: The output end of the meshing gear set (404) is provided with a rolling shaft (405), and the outer side of the rolling shaft (405) is provided with a conveyor belt (406) installed in a wrap-around manner, and the inner channel of the conveyor belt (406) is provided with multiple groups of parallel distributed supporting rod groups (407).

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