Ammonium molybdate production reaction unit

Abstract

The invention relates to the technical field of reactors, and specifically discloses an ammonium molybdate production reaction device, comprising a shell, a shaft cylinder rotatably arranged in the shell, and a plurality of base plates slidably arranged on the shaft cylinder, wherein a reciprocating screw rod fixedly connected to the shell is coaxially arranged in the shaft cylinder, a sliding hole matched with the base plate is opened on the shaft cylinder along its axial direction, a sliding block rotatably connected to the base plate is slidably arranged in the sliding hole, the reciprocating screw rod can drive the sliding block to move up and down, a plate 1 and a plate 2 are slidably arranged on the base plate, a shaft rod for driving the plate 1 and the plate 2 to move is rotatably arranged in the base plate, a plurality of stirring rods are arranged in the base plate, baffles are respectively arranged at the two ends of the plate 1 and the plate 2 along the axial direction of the shaft rod, swing plates are respectively rotatably arranged at the lower ends of the plate 1 and the plate 2 through an elastic member 1, an upper rack for driving the shaft rod to rotate and a lower rack for driving the base plate to rotate are fixedly arranged in the sliding hole, and the upper rack is located above the lower rack. The invention is conducive to better reaction between materials and solutions.

Description

Technical Field

[0001] The invention relates to the technical field of reactors, and in particular to an ammonium molybdate production reaction device. Background Art

[0002] A reactor is a container for materials to undergo physical or chemical reactions. The mixing and configuration of materials required by the process are achieved through the structural design and parameter configuration of the container. Physical or chemical reactions of materials are caused by heating, cooling, adding reagents, etc., to achieve the established process goals. Reactors are divided into different types according to their applications. For example, in the reactor for producing ammonium molybdate, the molybdenum concentrate is oxidized and roasted according to the process requirements, and then the roasted material is processed and added to the reactor containing nitric acid and ammonia water in the form of powder for leaching. In this process, a molybdenum acid solution is obtained by stirring and heating and cooling, and then the molybdenum acid solution is purified.

[0003] A Chinese patent application with publication number CN115463631A discloses a kettle reactor, including a reactor shell, a solid chamber, a roller, a cylinder, a C-shaped rod, a long shaft and a stirring column. A roller is arranged at the upper end of the inner cavity of the solid chamber, a cylinder passes through the middle of the solid chamber, two scrapers are fixed to the outer wall of the cylinder, a C-shaped rod and a long shaft are arranged in the inner cavity of the cylinder, the C-shaped rod and the long shaft are engaged with each other, sliders are fixed to the opposite outer sides of the C-shaped rod and the long shaft, the sliders are all slidably connected in the slide grooves provided on the inner side of the cylinder, a plurality of limit blocks are fixed to the lower end of the C-shaped rod, a plurality of semi-arc blocks are fixed to the two sides below the long shaft, and stirring columns are arranged on the side surfaces of the lower ends of the limit blocks and the semi-arc blocks.

[0004] During the implementation of the above technical solution, the block solid is crushed by the roller in the solid cavity and then mixed with the liquid. The rotation of the roller facilitates the crushing of the solid. The rotation of the scraper driven by the rotating drum facilitates the scraping of the solid cavity and the inner wall of the reactor. The rotation of the C-shaped rod and the long axis facilitates the stirring of the liquid. The up and down movement of the C-shaped rod facilitates the rotation of the stirring column, thereby driving the rotation of the bent plate, increasing the stirring in the middle of the reactor cavity, and at the same time, the stirring columns moving in opposite directions facilitate the breaking up of the lumps. However, the crushed material will form an accumulation phenomenon after falling on the liquid surface, which is difficult to have a good mixing reaction with the solution at the bottom and middle of the reactor, thereby reducing the reaction rate of the material and the solution. Summary of the invention

[0005] The invention provides an ammonium molybdate production reaction device, aiming to solve the problem in the related art that it is difficult to carry out a good mixing reaction between materials and solutions.

[0006] The ammonium molybdate production reaction device comprises a shell, a shaft cylinder rotatably arranged in the shell, and a plurality of base plates slidably arranged on the shaft cylinder, wherein a reciprocating screw rod fixedly connected to the shell is coaxially arranged in the shaft cylinder, a sliding hole cooperating with the base plate is opened on the shaft cylinder along its axial direction, a slider rotatably connected to the base plate is slidably arranged in the sliding hole, the reciprocating screw rod can drive the slider to move up and down, a plate 1 and a plate 2 are slidably arranged on the base plate, a shaft rod for driving the plate 1 and the plate 2 to move is rotatably arranged in the base plate, a plurality of stirring rods are arranged in the base plate, and the plate 1 and the plate 2 are divided into two ends along the axial direction of the shaft rod. The first and second plates are provided with a baffle plate respectively at their lower ends which are rotated by an elastic member 1, and an upper rack for driving the shaft rod to rotate and a lower rack for driving the base plate to rotate are fixedly provided in the sliding hole, and the upper rack is located above the lower rack; when the slider moves downward and the upper rack cooperates with the shaft rod, the first and second plates approach each other, the stirring rod extends out of the first and second plates, the swing plate swings, and then is stored in the base plate; when the slider moves upward and the upper rack cooperates with the shaft rod, the first and second plates and the swing plate are gradually reset, and a material trough is formed between the swing plate, the baffle plate and the base plate.

[0007] The present invention drives multiple substrates to move up and down reciprocatingly through the rotation of the shaft cylinder. During this process, the material in the material tank can be carried to liquid levels at different heights in the shell for release, thereby facilitating a full reaction between the material and the solution.

[0008] Preferably, the base plate is respectively provided with cavities for sliding of plate one and plate two, and matching plates corresponding to the two swing plates are fixedly provided in the two cavities respectively. A top block is slidably provided on the matching plate through elastic member 2, and multiple top blocks are provided along the length direction of the matching plate. The top block has a stop surface and a downward pressure surface, and the end of the swing plate has a driving block matching with the top block; the setting of the stop surface and the downward pressure surface enables the swing plate to swing when plate one and plate two approach each other, and the swing plate can be smoothly moved out of the cavity when plate one and plate two move away from each other.

[0009] Preferably, the ends of plate one and plate two that are close to each other are respectively provided with rack one and rack two, a limit rod is slidably provided on rack two through elastic member three, two limit holes that respectively cooperate with the limit rod are provided in the base plate along the length direction of rack two, and the end of the shaft rod has a gear one that meshes with rack one and rack two; the setting of the limit rod and the limit hole enables plate one and plate two to remain stationary relative to the base plate when they are in two extreme positions.

[0010] Preferably, one end of the limiting rod close to the limiting hole has an arc-shaped portion.

[0011] Preferably, the base plate has a mounting rod rotatably connected to the slider at one end close to the slider, the shaft rod is rotatably connected to the mounting rod, a limit block is provided on the mounting rod along its radial sliding through an elastic member four, an inner gear ring cooperating with the limit block is fixedly provided in the slider, and a gear three cooperating with the lower rack is coaxially provided on the mounting rod; the cooperation between the inner gear ring and the limit block enables the mounting rod to rotate relative to the slider during the process of the slider moving relative to the lower rack and the gear three on the mounting rod meshing with the lower rack; and when the gear three on the mounting rod is disengaged from the lower rack or the gear three is meshed with the lower rack and the slider stops moving relative to the lower rack, the mounting rod stops rotating relative to the slider.

[0012] Preferably, a second gear matched with the upper rack is fixedly provided on one end of the shaft rod located in the slider.

[0013] Preferably, along the rotation direction of the shaft cylinder, the distances between the upper and lower racks in the multiple sliding holes and the tops of the sliding holes increase successively, and the length of the lower rack decreases successively; thereby, the materials in the multiple material troughs can be carried to the liquid levels at different heights in the shell for release, thereby facilitating the full reaction of the materials and the solution.

[0014] Preferably, a motor for driving the shaft cylinder to rotate and tubes 1 and 2 for adding materials into the shell are provided on the top of the shell, a bracket connected to the reciprocating screw is fixedly provided at the bottom of the shell, and a discharge port is provided at the bottom of the shell.

[0015] Preferably, the substrate is arranged horizontally.

[0016] Preferably, the substrate forms an angle with a horizontal plane.

[0017] By adopting the above technical scheme, the beneficial effects of the present invention are as follows: during the downward movement of the substrate along the axial direction of the shaft tube, multiple substrates can press the materials on the liquid surface downward into below the liquid surface through the corresponding material troughs. Since the distances between the upper racks and the lower racks in the multiple sliding holes and the tops of the sliding holes increase successively, and the lengths of the lower racks decrease successively, the multiple substrates can carry the materials in the corresponding material troughs to different depths in the solution and release them slowly in sequence. During the release process, the swing plate swings back and forth, and the stirring rod gradually extends out of plate one and plate two, so that the released materials are in contact with the solution more evenly, and the stirring rod is more conducive to the uniform contact between the solution and the released materials. When gear three is meshed with the lower rack, the mounting rod can rotate relative to the slider, so that the substrate can rotate to accelerate the reaction between the material and the solution.

[0018] When the substrate moves downward along the axial direction of the shaft tube to the lowest part of the slide hole, under the action of the reciprocating screw, the substrate begins to move upward along the axial direction of the shaft tube. During this process, gear three meshes with the lower rack again to allow the substrate to rotate to accelerate the reaction between the material and the solution. Subsequently, multiple substrates can cooperate with the corresponding upper racks in turn to make plate one and plate two move away from each other, the stirring rod is gradually retracted into plate one and plate two, the swing plate on plate one rotates to a state perpendicular to plate one, and the swing plate on plate two rotates to a state perpendicular to plate two, until the substrate is restored to its initial state. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a cross-sectional view of the housing of the present invention.

[0021] Figure 3 It is a cross-sectional view of the shaft cylinder of the present invention.

[0022] Figure 4 It is a schematic diagram of the cooperation between the base plate and the shaft cylinder of the present invention.

[0023] Figure 5 It is an exploded view of the reciprocating screw and the slider of the present invention.

[0024] Figure 6 It is a cross-sectional view of the slider and the substrate of the present invention.

[0025] Figure 7 It is a schematic diagram of the cooperation of the slider, the shaft rod and the base plate of the present invention.

[0026] Figure 8 It is a schematic diagram of the coordination of the shaft rod, plate 1 and plate 2 of the present invention.

[0027] Fig. 9 It is a schematic diagram of the coordination between the limiting rod and the limiting hole of the present invention.

[0028] Fig.10 It is a schematic diagram of the cooperation between the cooperation plate and the swing plate of the present invention.

[0029] Fig.11 for Fig.10 Enlarged view of point A in the middle.

[0030] Fig.12 It is an exploded view of plate 1 and the swing plate of the present invention.

[0031] Fig.13 It is a schematic diagram of the cooperation between the upper sealing film, the lower sealing film and the slider of the present invention.

[0032] Fig.14 It is a schematic diagram of the upper rack and the lower rack in the three sliding holes along the rotation direction of the shaft cylinder of the present invention.

[0033] Figure numerals: 10, housing; 11, shaft cylinder; 111, mounting groove; 12, reciprocating screw; 121, bracket; 13, slider; 131, inner gear ring; 14, upper rack; 15, lower rack; 16, motor; 17, pipe 1; 18, pipe 2; 19, discharge port; 20, base plate; 200, limit hole; 21, shaft; 211, gear 1; 212, gear 2; 22, stirring rod; 23, matching Plate; 24, top block; 241, stop surface; 242, lower pressure surface; 25, mounting rod; 251, gear three; 26, limit block; 31, plate one; 311, rack one; 32, plate two; 321, rack two; 322, limit rod; 33, baffle; 34, elastic part one; 35, swing plate; 36, drive block; 41, upper sealing film; 42, lower sealing film; 43, upper winding wheel; 44, lower winding wheel. DETAILED DESCRIPTION

[0034] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0035] like Figure 1-Figure 7 as well as Fig.14 As shown, an ammonium molybdate production reaction device includes a shell 10, a shaft cylinder 11 rotatably arranged in the shell 10, and a plurality of substrates 20 slidably arranged on the shaft cylinder 11. A motor 16 for driving the shaft cylinder 11 to rotate and a tube 17 and a tube 18 for adding materials into the shell 10 are arranged on the top of the shell 10. The top of the shaft cylinder 11 is connected to the output end of the motor 16. The bottom of the shell 10 has a discharge port 19. A reciprocating screw 12 is coaxially arranged in the shaft cylinder 11. The shaft cylinder 11 is rotatably connected to the reciprocating screw 12. A bracket 121 fixedly connected to the reciprocating screw 12 is fixedly arranged at the bottom of the shell 10.

[0036] In this embodiment, there are three base plates 20, and a sliding hole cooperating with the base plate 20 is opened on the shaft cylinder 11 along its axial direction. The three sliding holes are evenly arranged along the circumference of the shaft cylinder 11, and a slider 13 rotatably connected to the base plate 20 is slidably arranged in the sliding hole. The end of the base plate 20 close to the slider 13 has a mounting rod 25 rotatably connected to the slider 13, and a shaft rod 21 is coaxially rotatably arranged in the mounting rod 25. A limit block 26 is provided on the mounting rod 25 along its radial sliding through an elastic member 4, and the elastic member 4 is specifically a spring. An inner gear ring 131 cooperating with the limit block 26 is fixed in the slider 13, and the inner gear ring 131 is coaxially arranged with the mounting rod 25. An upper rack 14 for driving the shaft rod 21 to rotate and a gear for driving the base plate 20 to rotate are fixed in the sliding hole. The lower rack 15 and the upper rack 14 are located above the lower rack 15. In this embodiment, a gear three 251 coaxially matched with the lower rack 15 is provided on the mounting rod 25, and a gear two 212 matched with the upper rack 14 is fixedly provided at one end of the shaft rod 21 located in the slider 13; the cooperation between the inner gear ring 131 and the limit block 26 enables the slider 13 to move relative to the lower rack 15 and the gear three 251 on the mounting rod 25 to mesh with the lower rack 15, and the mounting rod 25 can rotate relative to the slider 13 during the process; and when the gear three 251 on the mounting rod 25 is disengaged from the lower rack 15 or the gear three 251 is meshed with the lower rack 15 and the slider 13 stops moving relative to the lower rack 15, the mounting rod 25 stops rotating relative to the slider 13.

[0037] It should be noted that, along the rotation direction of the shaft cylinder 11 , the distances between the upper rack 14 and the lower rack 15 in the three sliding holes and the tops of the sliding holes increase successively, and the length of the lower rack 15 decreases successively.

[0038] In this embodiment, one end of the slider 13 close to the reciprocating screw 12 has a guide groove that cooperates with the reciprocating screw 12, so that when the shaft cylinder 11 rotates, the reciprocating screw 12 can drive the slider 13 to move up and down along the axial direction of the shaft cylinder 11.

[0039] like Figure 3-Figure 12As shown, a plate 1 31 and a plate 2 32 are slidably provided on the base plate 20, cavities for sliding the plate 1 31 and the plate 2 32 are respectively opened on the base plate 20, stirring rods 22 cooperating with the plate 1 31 and the plate 2 32 are respectively fixed in the two cavities, through holes cooperating with the stirring rod 22 are respectively opened on the plate 1 31 and the plate 2 32, rack 1 311 and rack 2 321 are respectively provided at the ends of the plate 1 31 and the plate 2 32 close to each other, a limit rod 322 is slidably provided on the rack 2 321 through an elastic member 3, the elastic member 3 is specifically a spring, and two respectively provided along the length direction of the rack 2 321 in the base plate 20 The limiting hole 200 cooperates with the limiting rod 322, and the limiting rod 322 has an arc-shaped portion at one end close to the limiting hole 200. The end of the shaft rod 21 has a gear 211 meshing with the rack 1 311 and the rack 2 321. When the limiting rod 322 is stuck in the limiting hole 200, the positions of the plate 1 31 and the plate 2 32 relative to the base plate 20 are fixed. When the shaft rod 21 drives the rack 1 311 and the rack 2 321 to rotate, under the action of the elastic member 3 and the arc-shaped portion, the limiting rod 322 can be disengaged from the limiting hole 200, so that the plate 1 31 and the plate 2 32 can move relative to the base plate 20.

[0040] It should be noted that when the plate 1 31 and the plate 2 32 are farthest apart, the limiting rod 322 is inserted into one of the limiting holes 200 , and when the plate 1 31 and the plate 2 32 are closest to each other, the limiting rod 322 is inserted into the other limiting hole 200 .

[0041] The two ends of the plate 1 31 and the plate 2 32 along the axial direction of the shaft 21 are respectively provided with baffles 33, and the lower ends of the plate 1 31 and the plate 2 32 are respectively provided with swing plates 35 through elastic members 1 34, and the elastic members 1 34 are specifically torsion springs. The lower ends of the plate 1 31 and the plate 2 32 are respectively provided with notches for installing the swing plates 35, and the two cavities are respectively fixed with matching plates 23 corresponding to the two swing plates 35, and the matching plates 23 are slidably provided with a top block 24 through elastic members 2, and the elastic members 2 are specifically springs. The top block 24 is slidable along the The matching plate 23 is provided with multiple ones in the length direction, the top block 24 has a stop surface 241 and a downward pressure surface 242, and the end of the swing plate 35 has a driving block 36 that cooperates with the top block 24. When the plate 1 31 and the plate 2 32 are in the farthest state, under the action of the elastic member 1 34, the swing plate 35 on the plate 1 31 is perpendicular to the plate 1 31, and the swing plate 35 on the plate 2 32 is perpendicular to the plate 2 32. At this time, the swing plate 35 is in contact with the baffle 33, and a material trough is formed between the swing plate 35, the baffle 33 and the base plate 20.

[0042] When the slider 13 moves downward and the upper rack 14 meshes with the gear 2 212, the plate 1 31 and the plate 2 32 approach each other, and the stirring rod 22 gradually extends out of the plate 1 31 and the plate 2 32. The driving block 36 can sequentially stop against the stop surfaces 241 of the plurality of top blocks 24, so that the swing plate 35 swings back and forth, so that the material in the trough is gradually released. When the swing plate 35 stops against the edge of the cavity, the swing plate 35 can gradually deflect and be stored in the corresponding notch, and then the plate 1 31, the plate 2 32 and the swing plate 35 are all stored in the cavity; when the slider 13 moves upward, During the meshing process of the upper rack 14 and the gear 2 212, the plate 1 31 and the plate 2 32 move away from each other, and the stirring rod 22 is gradually retracted into the plate 1 31 and the plate 2 32. Under the action of the elastic member 1 34, the swing plate 35 on the plate 1 31 rotates to a state perpendicular to the plate 1 31, and the swing plate 35 on the plate 2 32 rotates to a state perpendicular to the plate 2 32. The driving block 36 can stop against the lower pressure surfaces 242 of multiple top blocks 24 in sequence, so that the top block 24 moves into the matching plate 23, so that the plate 1 31 and the plate 2 32 can move smoothly to the farthest position.

[0043] like Figure 2-Figure 4 as well as Fig.13 and Fig.14 As shown, taking one of the sliding holes as an example, mounting grooves 111 are respectively provided on opposite sides of the sliding hole on the shaft cylinder 11, and the mounting grooves 111 extend along the axial direction of the shaft cylinder 11. An upper sealing film 41 is sealed and installed on the upper end of the slider 13, and a lower sealing film 42 is sealed and installed on the lower end of the slider 13. The upper sealing film 41 and the lower sealing film 42 are respectively in sealing contact with the mounting grooves 111 on opposite sides of the sliding hole, and an upper winding wheel 43 is rotatably installed on the top of the shaft cylinder 11 through an elastic member 5, and the elastic member 5 is specifically a torsion spring, and the upper sealing film 41 is away from One end of the slider 13 is wound around the outer periphery of the upper winding wheel 43, and a lower winding wheel 44 is rotatably installed at the bottom of the slider 13 through an elastic member 6, and the elastic member 6 is specifically a torsion spring. One end of the lower sealing film 42 away from the slider 13 is wound around the outer periphery of the lower winding wheel 44. Therefore, in the process of the slider 13 moving up and down, under the action of the elastic member 5 and the elastic member 6, the upper sealing film 41 and the lower sealing film 42 are always in a tensioned state respectively, thereby preventing the material from entering the slider 13 from the slide hole during mixing, thereby facilitating the smooth operation of the device.

[0044] In this embodiment, the substrates 20 are arranged horizontally. In the initial state, the three substrates 20 are all located above the liquid level in the shell 10, and the plate 1 31 and the plate 2 32 on the substrate 20 are at the farthest distance, and the material trough is located below the substrate 20.

[0045] In other embodiments, the substrate 20 has an angle with the horizontal plane, which is an acute angle, and the front end of the substrate 20 along the rotation direction of the shaft cylinder 11 is higher than the rear end of the substrate 20 along the rotation direction of the shaft cylinder 11, so that when the shaft cylinder 11 rotates, the substrate 20 can have a better stirring effect on the material to accelerate the reaction rate. In the initial state, the three substrates 20 are all above the liquid level in the shell 10, and the plate 1 31 and the plate 2 32 on the substrate 20 are in the farthest distance state, and the material trough is located below the substrate 20.

[0046] Specific working principle: Reference Figure 1-Figure 14 First, nitric acid and ammonia water are added into the shell 10 through the pipe 17, and then the powder material is added into the shell 10 through the pipe 2 18. The motor 16 is started to rotate the shaft cylinder 11 clockwise (looking from top to bottom along the axial direction of the shaft cylinder 11). The base plate 20 can move downward along the axial direction of the shaft cylinder 11. In this process, the three base plates 20 can press the materials on the liquid surface downward into the liquid surface through the corresponding material troughs. Since the distances between the upper rack 14 and the lower rack 15 in the three sliding holes and the top of the sliding holes increase successively, the length of the lower rack 15 increases successively. Reduced, so the three substrates 20 can carry the materials in the corresponding material troughs to different depths in the solution and slowly release them in sequence, and in the release process, the swing plate 35 swings back and forth, and the stirring rod 22 gradually extends out of the plate 1 31 and the plate 2 32, so that the released materials are in more uniform contact with the solution, and the stirring rod 22 is more conducive to the uniform contact between the solution and the released materials. When the gear three 251 is engaged with the lower rack 15, the mounting rod 25 can rotate relative to the slider 13, so that the substrate 20 can rotate to accelerate the reaction between the material and the solution.

[0047] When the substrate 20 moves downward along the axial direction of the shaft tube 11 to the lowest part of the slide hole, under the action of the reciprocating screw 12, the substrate 20 begins to move upward along the axial direction of the shaft tube 11. During this process, the gear three 251 engages with the lower rack 15 again to enable the substrate 20 to rotate to accelerate the reaction between the material and the solution. Subsequently, the three substrates 20 can cooperate with the corresponding upper rack 14 in turn to make the plate one 31 and the plate two 32 move away from each other, the stirring rod 22 is gradually retracted into the plate one 31 and the plate two 32, the swing plate 35 on the plate one 31 rotates to a state perpendicular to the plate one 31, and the swing plate 35 on the plate two 32 rotates to a state perpendicular to the plate two 32, until the substrate 20 is restored to its initial state.

[0048] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. An ammonium molybdate production reaction device, comprising a housing, a shaft cylinder rotatably arranged in the housing, and a plurality of substrates slidably arranged on the shaft cylinder, characterized in that: The shaft cylinder is coaxially provided with a reciprocating screw rod fixedly connected to the shell body, and a sliding hole is opened on the shaft cylinder along its axial direction to cooperate with the base plate, and a sliding block connected to the base plate for rotation is slidably provided in the sliding hole, and the reciprocating screw rod can drive the sliding block to move up and down, and a plate 1 and a plate 2 are slidably provided on the base plate, and an axis rod for driving the plates 1 and 2 to move is rotatably provided in the base plate, and a plurality of stirring rods are provided in the base plate, and baffles are respectively provided at both ends of the plates 1 and 2 along the axial direction of the axis rod, and swing plates are rotatably provided at the lower ends of the plates 1 and 2 through an elastic member 1, and an upper rack for driving the axis rod to rotate and a lower rack for driving the base plate to rotate are fixedly provided in the sliding hole, and the upper rack is located above the lower rack; As the slider moves downward and the upper rack cooperates with the shaft rod, plate one and plate two approach each other, the stirring rod extends out of plate one and plate two, the swing plate swings, and then is stored in the base plate. As the slider moves upward and the upper rack cooperates with the shaft rod, plate one, plate two and the swing plate gradually return to their original positions, and a material trough is formed between the swing plate, the baffle plate and the base plate.

2. The ammonium molybdate production reaction device according to claim 1, characterized in that: The base plate is respectively provided with cavities for sliding of plate one and plate two, and matching plates corresponding to the two swing plates are fixedly provided in the two cavities respectively. A top block is slidably provided on the matching plate through elastic member 2, and multiple top blocks are provided along the length direction of the matching plate. The top block has a stop surface and a downward pressure surface, and the end of the swing plate has a driving block matching with the top block.

3. The ammonium molybdate production reaction device according to claim 1, characterized in that: The ends of the plates one and two that are close to each other are respectively provided with rack one and rack two, a limit rod is slidably provided on rack two through elastic member three, two limit holes that respectively cooperate with the limit rod are provided in the base plate along the length direction of rack two, and the end of the shaft rod is provided with gear one that meshes with rack one and rack two.

4. The ammonium molybdate production reaction device according to claim 3, characterized in that: One end of the limiting rod close to the limiting hole has an arc portion.

5. The ammonium molybdate production reaction device according to claim 1, characterized in that: The end of the base plate close to the slider is provided with a mounting rod rotatably connected to the slider, the shaft rod is rotatably connected to the mounting rod, a limit block is provided on the mounting rod through an elastic member 4 for radial sliding thereof, an inner gear ring cooperating with the limit block is fixedly provided in the slider, and a gear 3 coaxially cooperating with the lower rack is provided on the mounting rod.

6. The ammonium molybdate production reaction device according to claim 1, characterized in that: A second gear matched with the upper rack is fixedly provided at one end of the shaft rod located in the slide block.

7. The ammonium molybdate production reaction device according to claim 1, characterized in that: Along the rotation direction of the shaft cylinder, the distances between the upper racks and the lower racks in the plurality of sliding holes and the tops of the sliding holes increase successively, and the length of the lower rack decreases successively.

8. The ammonium molybdate production reaction device according to claim 1, characterized in that: The top of the shell is provided with a motor for driving the shaft cylinder to rotate and a pipe 1 and a pipe 2 for adding materials into the shell. The bottom of the shell is fixedly provided with a bracket connected to the reciprocating screw rod, and the bottom of the shell is provided with a discharge port.

9. The ammonium molybdate production reaction device according to any one of claims 1 to 8, characterized in that: The substrate is arranged horizontally.

10. The ammonium molybdate production reaction device according to any one of claims 1 to 8, characterized in that: The substrate has an angle with a horizontal plane.

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