Acrylonitrile catalyst raw material dissolving and mixing device and process

Abstract

The invention relates to the technical field of mixing devices, and discloses an acrylonitrile catalyst raw material dissolving and mixing device and process, the acrylonitrile catalyst raw material dissolving and mixing device comprises a tank body, a frustum is mounted at the bottom of the inner wall of the tank body, a rotating shaft is rotatably mounted between the top of the frustum and the top surface of the tank body, and the acrylonitrile catalyst raw material dissolving and mixing device further comprises an anti-deposition assembly used for preventing raw materials from depositing at the bottom of the tank body; the feeding assembly is used for quantitatively feeding raw materials; the material distribution assembly is used for uniformly distributing raw materials. Through the arrangement of an anti-deposition assembly, two semi-circular rings are matched with a plurality of turning plates, in the raw material stirring and mixing process, raw materials deposited at the bottom of the tank body are continuously conveyed to a high liquid level to be put again, the raw materials continuously repeat the process of sinking in a solution, the contact area of the raw materials and the solution is increased, and the stirring efficiency is improved. The dissolving and mixing efficiency is greatly improved, and the problem that the dissolving and mixing efficiency of part of raw materials is low due to raw material accumulation is solved.

Description

Technical Field

[0001] The invention relates to the technical field of mixing devices, and in particular to an acrylonitrile catalyst raw material dissolving and mixing device and process. Background Art

[0002] Acrylonitrile catalysts are usually multi-component composite metal oxides composed of a variety of elements such as iron, nickel, bismuth, and molybdenum, with a specific silicon oxide as a carrier. The active components are evenly distributed, which makes the catalyst have excellent performance. The raw materials of acrylonitrile catalysts mainly include carrier raw materials, active component raw materials, and other additives and additives. Acrylonitrile catalysts usually use a specific silicon oxide as a carrier. This carrier raw material has good stability and adsorption properties, can load active components and make them evenly distributed, thereby improving the catalytic activity of the catalyst. The active components of acrylonitrile catalysts are usually composed of a variety of metal elements, mainly including iron (Fe), nickel (Ni), bismuth (Bi), molybdenum (Mo), etc. These metal elements exist in the form of oxides and are loaded on the carrier through a specific process. Among them, antimony-based catalysts have antimony (Sb) and iron (Fe) as the main active components, and molybdenum-based catalysts have Bi2O3, MoO3, etc. as the main active components. These active components play a key role in the catalytic reaction, which can accelerate the reaction rate and increase the yield of acrylonitrile. In the process of producing acrylonitrile catalysts, a mixing device is required to dissolve and mix the raw materials of acrylonitrile catalysts.

[0003] However, the prior art has the following problems: In actual use of the prior art, since the raw materials of the acrylonitrile catalyst are divided into solid raw materials and solutions, during the dissolution and mixing process of the solid raw materials, part of the solid raw materials will be deposited at the bottom of the container, causing the accumulated solid raw materials to gradually dissolve from the top layer downwards, resulting in low dissolution efficiency, which prolongs the overall time for dissolving and mixing the raw materials, thereby affecting the overall production process. Summary of the invention

[0004] The purpose of the present invention is to provide an acrylonitrile catalyst raw material dissolving and mixing device and process in order to solve the above problems and overcome the defects of the prior art, as described in detail below.

[0005] To achieve the above object, the present invention provides the following technical solutions: The present invention provides an acrylonitrile catalyst raw material dissolving and mixing device, comprising a tank body, a frustum is installed at the bottom of the inner wall of the tank body, a rotating shaft is rotatably installed between the top of the frustum and the top surface of the tank body, a motor is installed at the top of the tank body, the output end of the motor is connected to the rotating shaft, three stirring rods are installed on the rotating shaft, a hopper and a liquid inlet pipe are installed at the top of the tank body, a discharge pipe is installed at the bottom of the tank body, a mounting rod is installed on the inner wall of the tank body, and the inner wall of the mounting rod is rotatably connected to the outer wall of the rotating shaft; it also includes an anti-deposition component for preventing the raw material from being deposited at the bottom of the tank body; a feeding component for quantitatively feeding the raw material; a distribution component for evenly distributing the raw material; the anti-deposition component comprises two ball sliders, both of which are slidably installed on the inner wall of the tank body, two semicircular rings are slidably installed on the inner wall of the tank body, the two ends of the two semicircular rings are respectively connected to the two sides of the two ball sliders, a plurality of flaps are rotatably installed in the semicircular rings, and two reciprocating screws are rotatably installed between the mounting rod and the bottom inner wall of the tank body.

[0006] Preferably, a belt is sleeved between the two reciprocating screws and the rotating shaft, a reciprocating thread groove is provided on the reciprocating screw, a ball thread hole is provided on the ball slider, the ball thread holes of the two ball sliders are threadedly connected to the reciprocating thread grooves of the two reciprocating screws through balls respectively, an annular gap is provided between the frustum and the inner wall of the tank body, and the two ball sliders and the two semicircular rings are located in the annular gap between the frustum and the tank body.

[0007] Preferably, a slide is slidably installed on the inner wall of the semicircular ring, and a plurality of pull rods are hinged on the bottom surface of the slide. The ends of the pull rods away from the slide are respectively hinged to a plurality of flaps, and groove rods are respectively connected to the two ends of the slide. Two rotating wheels are rotatably installed on the inner wall of the ball slider, and a first slide shaft and a second slide shaft are connected to the rotating wheels. Four lower resistance rods are installed on the bottom inner wall of the tank body, and four upper resistance rods are installed on the mounting rod.

[0008] Preferably, the two rotating wheels inside the ball slider are respectively located on both sides of the reciprocating screw, and the two rotating wheels are mirror-imaged. The No. 1 slide shaft and the No. 2 slide shaft of the rotating wheel are centrally symmetrically arranged with the center of the wheel as the center. The four No. 1 slide shafts are respectively slidably connected to the inner walls of the four slot rods, and the four No. 2 slide shafts respectively contact the four lower resistance rods when moving downward, and the four No. 2 slide shafts respectively contact the four upper resistance rods when moving upward.

[0009] Preferably, the inner wall of the semicircular ring is rotatably mounted with a plurality of nut seats through a bracket, the top surface of the slide is connected with a plurality of threaded rods, the plurality of threaded rods are respectively threadedly connected with a plurality of nut seats, and the outer wall of the nut seat is connected with a plurality of fork rods.

[0010] Preferably, the feeding assembly includes two slide rails, both of which are installed on the inner wall of the tank body, a slide rod is slidably connected between the two slide rails, a quantitative box is connected to the slide rod, a bottom cover is hinged at the bottom of the quantitative box, a slide seat is slidably installed on the inner wall of the tank body, a connecting rod is hinged between the slide seat and the slide rod, a return spring is arranged between the quantitative box and the inner wall of the tank body, two support rods are installed on the inner wall of the tank body, the top surfaces of the two support rods are in sliding contact with the bottom surface of the bottom cover, the top of the quantitative box is in sliding contact with the bottom of the hopper, and a baffle is arranged on the top right outer wall of the quantitative box.

[0011] Preferably, two curved rods are connected to the top surface of the bottom cover, and clearing rods are slidably installed on the two curved rods. A plurality of semicircular blocks are connected to the rear inner wall of the quantitative box. A return spring is arranged between the clearing rod and one of the curved rods, and the rear end of the clearing rod contacts with the plurality of semicircular blocks in sequence when moving.

[0012] Preferably, the cloth assembly includes a groove plate, which is connected to the outer wall of the rotating shaft, the groove plate is located below the bottom cover, and a plurality of long grooves are arranged on the groove plate. Two groups of round rods are connected to the bottom of the mounting rod, and one group of round rods is provided with two, and levers are slidably installed on the two groups of round rods, respectively, and a fork is connected to one end of the lever close to the rotating shaft, and a bevel wheel is connected to the outer wall of the rotating shaft, and the bevel wheel is located between the two forks, and the inner side of the fork is in contact with the bevel wheel, and both of the two levers are located above the groove plate.

[0013] Preferably, a plurality of spring sheets are connected to the top of the slot plate, and two protrusions are connected to the bottom surface of the mounting rod, and the spring sheets contact the two protrusions in sequence when moving.

[0014] A process for dissolving and mixing acrylonitrile catalyst raw materials comprises the following steps: Step 1: Prepare the materials, mix the solid raw materials according to the proportion; Step 2: Add the solution into the tank through the liquid inlet pipe, start the motor and start stirring; Step 3: Feeding, adding raw materials into the hopper, feeding the raw materials into the slot plate in a timely and quantitative manner through the feeding component, and then the slot plate evenly spreads the raw materials into the tank body; Step 4: Mixing: dissolving and mixing the solution and the raw materials through the cooperation of three stirring rods and the anti-deposition component; Step 5: Heating: using steam to heat the inside of the tank and keeping the temperature within the set temperature range; Step 6: After the dissolution is completed, the raw materials are transported to the next process through the discharge pipe to clean the inside of the tank.

[0015] The beneficial effects are: 1. The acrylonitrile catalyst raw material dissolving and mixing device, through the setting of the anti-deposition component, enables the two semicircular rings to cooperate with the multiple flaps, and in the process of stirring and mixing the raw materials, the raw materials deposited at the bottom of the tank body are continuously transported to a higher liquid level for re-addition, so that the raw materials are repeatedly sunk in the solution, the contact area between the raw materials and the solution is promoted, the dissolving and mixing efficiency is greatly improved, and the problem of low dissolving and mixing efficiency of some raw materials due to the accumulation of raw materials is avoided; through the setting of multiple nut seats and multiple fork rods above them, when the multiple flaps are turned over, the multiple fork rods rotate and stir the raw materials in the two semicircular rings, so as to disperse the agglomerated raw materials, and further promote the dissolving and mixing efficiency.

[0016] 2. The acrylonitrile catalyst raw material dissolving and mixing device, through the setting of the feeding component, enables the quantitative box to load a certain amount of raw materials, and when the two semicircular rings convey the raw materials deposited in the tank body, the quantitative box puts the raw materials inside into the tank body, thereby achieving the effect of timing and quantitative feeding, avoiding the deposition of a large amount of raw materials caused by a large amount of raw materials being put in at one time, thereby affecting the dissolving and mixing efficiency; through the setting of the dredging rod, the dredging rod can move back and forth while moving downward when the bottom cover is flipped, so as to dredge the raw materials inside the quantitative box, promote the falling of the raw materials, and avoid a small amount of raw materials being accumulated in the quantitative box and unable to fall in time.

[0017] 3. The acrylonitrile catalyst raw material dissolving and mixing device, through the setting of the material distribution component, enables the quantitative box to put the raw material onto the slot plate, and the slot plate evenly sprinkles the raw material into the tank body through multiple long slots by rotating, and the two levers can also evenly spread the raw material in the slot plate by alternating up and down reciprocating motion, thereby improving the uniformity of the raw material distribution in the slot plate; through the cooperation of multiple spring pieces and two protrusions, the slot plate can also vibrate when rotating, and the slot plate can promote the falling process of the raw material through vibration, and can also further improve the uniformity of the raw material distribution. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 1 It is a schematic diagram of the appearance of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention; Figure 3 is a schematic diagram of the structure of the anti-deposition assembly of the present invention; Figure 4It is a schematic diagram of the frustum structure of the present invention; Figure 5 It is a schematic diagram of the semicircular ring structure of the present invention; Figure 6 It is a schematic diagram of the structure of the carriage of the present invention; Figure 7 It is a schematic diagram of the slot rod structure of the present invention; Figure 8 It is a schematic diagram of the structure of the runner of the present invention; Fig. 9 It is a schematic diagram of the nut seat structure of the present invention; Fig.10 It is a schematic diagram of the structure of the feeding assembly of the present invention; Fig.11 It is a schematic diagram of the quantitative box structure of the present invention; Fig.12 It is a schematic diagram of the structure of the dredging rod of the present invention; Fig.13 is a schematic structural diagram of a cloth assembly of the present invention; Fig.14 It is a schematic diagram of the slot plate structure of the present invention.

[0020] The reference numerals are as follows: 1, tank; 2, motor; 3, rotating shaft; 4, stirring rod; 5, anti-deposition assembly; 51, reciprocating screw; 52, ball slider; 53, semicircular ring; 54, flap; 55, pull rod; 56, slide; 57, slot rod; 58, rotating wheel; 59, first slide shaft; 510, second slide shaft; 511, lower resistance rod; 512, upper resistance rod; 513, nut seat; 514, fork rod; 515, threaded rod; 6 , feeding assembly; 61, slide rail; 62, slide rod; 63, metering box; 64, bottom cover; 65, support rod; 66, connecting rod; 67, slide seat; 68, curved rod; 69, dredging rod; 610, semicircular block; 7, material distribution assembly; 71, groove plate; 72, round rod; 73, lever; 74, fork; 75, inclined wheel; 76, spring piece; 77, bump; 8, hopper; 9, liquid inlet pipe; 10, discharge pipe; 11, mounting rod; 12, cone. DETAILED DESCRIPTION

[0021] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention. Example 1

[0022] See also Figure 1 - Fig.14, a device for dissolving and mixing acrylonitrile catalyst raw materials, comprising a tank body 1, a frustum 12 is installed at the bottom of the inner wall of the tank body 1, a rotating shaft 3 is rotatably installed between the top of the frustum 12 and the top surface of the tank body 1, a motor 2 is installed at the top of the tank body 1, the output end of the motor 2 is connected to the rotating shaft 3, three stirring rods 4 are installed on the rotating shaft 3, after the motor 2 is started, the motor 2 drives the rotating shaft 3 to rotate, the rotating shaft 3 drives the three stirring rods 4 to rotate, the three stirring rods 4 stir and mix the raw materials in the tank body 1, a hopper 8 and a liquid inlet pipe 9 are installed at the top of the tank body 1, a discharge pipe 10 is installed at the bottom of the tank body 1, a mounting rod 11 is installed on the inner wall of the tank body 1, and the inner wall of the mounting rod 11 is rotatably connected to the outer wall of the rotating shaft 3; it also includes an anti-deposition component 5 for preventing the raw materials from being deposited on The bottom of the tank body 1; the anti-deposition component 5 includes two ball sliders 52, both of which are slidably installed on the inner wall of the tank body 1, and two semicircular rings 53 are slidably installed on the inner wall of the tank body 1. The two ends of the two semicircular rings 53 are respectively connected to the two sides of the two ball sliders 52, and a plurality of flaps 54 are rotatably installed in the semicircular rings 53. Two reciprocating screw rods 51 are rotatably installed between the mounting rod 11 and the bottom inner wall of the tank body 1. A belt is sleeved between the two reciprocating screw rods 51 and the rotating shaft 3. The rotating shaft 3 drives the two reciprocating screw rods 51 to rotate through the belt. The reciprocating screw rod 51 is provided with a reciprocating thread groove, and the ball slider 52 is provided with a ball thread hole. The ball thread holes of the two ball sliders 52 are respectively screwed by the reciprocating thread grooves of the balls and the two reciprocating screw rods 51. The two reciprocating screw rods 51 are connected by grooves. When the two reciprocating screw rods 51 rotate, the two ball sliders 52 are driven to move synchronously up and down. The two ball sliders 52 drive the two semicircular rings 53 to move synchronously up and down. An annular gap is set between the frustum 12 and the inner wall of the tank body 1. The solid raw materials in the tank body 1 are deposited in the annular gap between the frustum 12 and the tank body 1. The two ball sliders 52 and the two semicircular rings 53 are located in the annular gap between the frustum 12 and the tank body 1. A slide 56 is slidably installed on the inner wall of the semicircular ring 53. A plurality of pull rods 55 are hinged on the bottom surface of the slide 56. The ends of the plurality of pull rods 55 away from the slide 56 are respectively hinged to a plurality of flaps 54. The two ends of the slide 56 are respectively connected to slot rods 57. Two rotating wheels are rotatably installed on the inner wall of the ball slider 52 58, the rotating wheel 58 is connected with a No. 1 sliding shaft 59 and a No. 2 sliding shaft 510, four lower contact rods 511 are installed on the bottom inner wall of the tank body 1, and four upper contact rods 512 are installed on the mounting rod 11. The two rotating wheels 58 inside the ball slider 52 are respectively located on both sides of the reciprocating screw rod 51, and the two rotating wheels 58 are mirror-imaged. The No. 1 sliding shaft 59 and the No. 2 sliding shaft 510 of the rotating wheel 58 are centrally symmetrically arranged with the center of the rotating wheel 58 as the center. The four No. 1 sliding shafts 59 are respectively slidably connected with the inner walls of the four groove rods 57, and the four No. 2 sliding shafts 510 are respectively in contact with the four lower contact rods 511 when moving downward. When the two ball sliders 52 and the two semicircular rings 53 are about to move to the lowest point, the four lower contact rods 511 contact the four No. 2 sliding shafts 510.The No. 2 slide shaft 510 drives the rotating wheel 58 to rotate, so that the four No. 1 slide shafts 59 move downward, and the four No. 1 slide shafts 59 respectively drive the two slides 56 to move downward, and the two slides 56 drive the multiple flaps 54 to flip downward through multiple pull rods 55. When the semicircular ring 53 moves to the bottom, the multiple flaps 54 are in a horizontal state. In this process, the multiple flaps 54 squeeze the raw materials in the annular gap around the cone 12 into the inside of the semicircular ring 53 by rotating. After the multiple flaps 54 are horizontal, they can prevent the raw materials inside the semicircular ring 53 from falling. When the two semicircular rings 53 move upward, the two The semicircular ring 53 conveys the raw materials at the bottom of the tank body 1 upward, and the four No. 2 sliding shafts 510 contact the four upper resistance rods 512 respectively when moving upward. When the semicircular ring 53 moves to the highest point, the multiple flaps 54 flip upward and finally become vertical, so that the raw materials inside the semicircular ring 53 fall downward, and the accumulated raw materials sink again from the inside of the tank body 1, thereby increasing the contact area between the raw materials and the solution; the inner wall of the semicircular ring 53 is rotatably mounted with multiple nut seats 513 through a bracket, and the top surface of the slide 56 is connected to multiple threaded rods 515. When the slide 56 moves upward or downward, it drives multiple The threaded rods 515 move synchronously, and the multiple threaded rods 515 are respectively threadedly connected with the multiple nut seats 513. The outer wall of the nut seat 513 is connected with multiple fork rods 514. When the threaded rods 515 move, they can drive the nut seat 513 to rotate through the threaded connection principle. When the nut seat 513 rotates, it drives the multiple fork rods 514 to rotate. When the fork rods 514 rotate, they can stir the surrounding raw materials and disperse some of the agglomerated raw materials to prevent some of the raw materials from agglomerating in the solution and affecting the dissolution and mixing efficiency. Through the setting of the anti-deposition component 5, the two semicircular rings 53 cooperate with the multiple flaps 54 to During the mixing and stirring process of the materials, the raw materials deposited at the bottom of the tank body 1 are continuously transported to a higher liquid level for re-addition, so that the raw materials continuously repeat the process of sinking in the solution, promoting the contact area between the raw materials and the solution, greatly improving the dissolution and mixing efficiency, and avoiding the problem of low dissolution and mixing efficiency of some raw materials due to raw material accumulation; through the arrangement of multiple nut seats 513 and multiple fork rods 514 above them, when the multiple flaps 54 are turned over, the multiple fork rods 514 rotate and stir the raw materials in the two semicircular rings 53, so as to disperse the agglomerated raw materials and further promote the dissolution and mixing efficiency.

[0023] Furthermore, the feeding assembly 6 is used for quantitative feeding of raw materials. The feeding assembly 6 includes two slide rails 61, both of which are installed on the inner wall of the tank body 1. A slide rod 62 is slidably connected between the two slide rails 61, and a quantitative box 63 is connected to the slide rod 62. The bottom of the quantitative box 63 is hinged with a bottom cover 64. A slide seat 67 is slidably installed on the inner wall of the tank body 1. A connecting rod 66 is hinged between the slide seat 67 and the slide rod 62. When the semicircular ring 53 on the right is about to move upward to the highest point, the semicircular ring 53 contacts the slide seat 67 and pushes the slide seat 67 upward. When the slide seat 67 moves upward, the slide rod 62 and the quantitative box 63 are driven to move to the left through the connecting rod 66. A reset spring is arranged between the quantitative box 63 and the inner wall of the tank body 1. The spring is used to drive the quantitative box 63 to reset. Two support rods 65 are installed on the inner wall of the tank body 1. The left ends of the two support rods 65 are set to be arc-shaped. The top surfaces of the two support rods 65 are in sliding contact with the bottom surface of the bottom cover 64. The top of the quantitative box 63 is in sliding contact with the bottom of the hopper 8. After the raw materials are added to the hopper 8, the raw materials in the hopper 8 fall into the quantitative box 63. When the quantitative box 63 is full, the raw materials stop falling. The bottom cover 64 gradually separates from the two support rods 65 during the process of moving to the left, so that the bottom cover 64 flips downward, and the raw materials in the quantitative box 63 fall out through the openings of the bottom cover 64 and the quantitative box 63. A baffle is provided on the outer wall on the right side of the top of the quantitative box 63. The baffle on the right side of the quantitative box 63 moves to the left synchronously, so that the baffle is against the bottom of the hopper 8. The outlet is blocked to prevent the raw materials in the hopper 8 from falling. When the bottom cover 64 moves to the right, it gradually slides along the arc-shaped left ends of the two support rods 65 to the top of the two support rods 65, so that the bottom cover 64 is reset to a horizontal state, achieving the effect of closing the bottom cover 64 and achieving the effect of timed and quantitative feeding of raw materials; the top surface of the bottom cover 64 is connected to two curved rods 68, and the dredging rods 69 are slidably installed on the two curved rods 68. When the bottom cover 64 is flipped downward, the bottom cover 64 drives the dredging rods 69 to move downward through the two curved rods 68. A plurality of semicircular blocks 610 are connected to the inner wall of the rear side of the quantitative box 63. A return spring is arranged between the dredging rod 69 and one of the curved rods 68. The rear end of the dredging rod 69 sequentially contacts with the plurality of semicircular blocks 610 during movement. When the dredging rod 69 moves, it contacts the multiple semicircular blocks 610 in sequence. In this process, the dredging rod 69 is subjected to the reverse thrust of the multiple semicircular blocks 610 and moves back and forth. When the dredging rod 69 moves downward, it also moves back and forth to dredge the raw materials inside the quantitative box 63, promote the falling of the raw materials, and avoid the accumulation of a small amount of raw materials in the quantitative box 63; through the setting of the feeding component 6, the quantitative box 63 can load a certain amount of raw materials, and when the two semicircular rings 53 transport the raw materials deposited in the tank body 1, the quantitative box 63 puts the raw materials inside the tank body 1 into the tank body 1, achieving the effect of timed and quantitative feeding, avoiding the deposition of a large amount of raw materials caused by a large amount of raw materials being put in at one time, thereby affecting the dissolution and mixing efficiency;By setting the dredging rod 69, the dredging rod 69 can move back and forth while moving downward when the bottom cover 64 is turned over, so as to dredge the raw materials inside the quantitative box 63, promote the falling of the raw materials, and avoid a small amount of raw materials from accumulating in the quantitative box 63 and failing to fall in time.

[0024] Furthermore, the material distribution component 7 is used to evenly distribute the raw materials. The material distribution component 7 includes a groove plate 71, which is connected to the outer wall of the rotating shaft 3. The groove plate 71 is located below the bottom cover 64. A plurality of long grooves are arranged on the groove plate 71. When the rotating shaft 3 rotates, the groove plate 71 is driven to rotate synchronously. When the groove plate 71 rotates, the raw materials inside the groove plate 71 are evenly sprinkled into the tank body 1 through the plurality of long grooves. Two groups of round rods 72 are connected to the bottom of the mounting rod 11. One group of round rods 72 is set to two. The two groups of round rods 72 are respectively slidably mounted. A lever 73 is provided, and one end of the lever 73 close to the rotating shaft 3 is connected to a fork head 74, and the outer wall of the rotating shaft 3 is connected to an inclined wheel 75, and the inclined wheel 75 is located between the two fork heads 74, and the inner side of the fork head 74 contacts the inclined wheel 75. The two levers 73 are both located above the groove plate 71. When the inclined wheel 75 rotates, the two levers 73 are driven by the two fork heads 74 to move up and down in opposite directions. During the process of the two levers 73 moving up and down alternately, the raw materials accumulated in the groove plate 71 are continuously spread evenly, further promoting The trough plate 71 has uniform material spreading; a plurality of spring pieces 76 are connected to the top of the trough plate 71, and two protrusions 77 are connected to the bottom surface of the mounting rod 11. The spring pieces 76 contact the two protrusions 77 in turn when moving, and the plurality of spring pieces 76 contact the two protrusions 77 in turn when rotating to vibrate. When the spring pieces 76 vibrate, the trough plate 71 is driven to vibrate, so that the trough plate 71 can also vibrate when rotating, and the trough plate 71 can promote the efficiency of material spreading by vibration; through the setting of the material distribution assembly 7, the quantitative box 63 puts the raw material onto the trough plate 71, and the trough plate 71 evenly spreads the raw material into the tank body 1 through a plurality of long slots by rotating, and the two levers 73 can also spread the raw material in the trough plate 71 evenly by alternating up and down reciprocating motions, thereby improving the uniformity of the distribution of the raw material in the trough plate 71; through the cooperation of the plurality of spring pieces 76 and the two protrusions 77, the trough plate 71 can also vibrate when rotating, and the trough plate 71 can promote the falling process of the raw material by vibration, and can also further improve the uniformity of the distribution of the raw material. Example 2

[0025] A process for dissolving and mixing acrylonitrile catalyst raw materials, using an acrylonitrile catalyst raw material dissolving and mixing device in Example 1, further comprising the following steps: Step 1: Prepare the materials, mix the solid raw materials according to the proportion; Step 2: Add the solution into the tank 1 through the liquid inlet pipe 9, start the motor 2 and start stirring; Step 3: Feeding, adding raw materials into the hopper 8, and feeding the raw materials to the slot plate 71 in a timely and quantitative manner through the feeding component 6, and then the slot plate 71 evenly spreads the raw materials in the tank body 1; Step 4: Mixing: dissolving and mixing the solution and the raw material by means of the cooperation of the three stirring rods 4 and the anti-deposition component 5; Step 5: Heating: using steam to heat the inside of the tank body 1 and maintaining the temperature within a set temperature range; Step 6: After the dissolution is completed, the raw materials are transported to the next process through the discharge pipe 10 to clean the inside of the tank body 1.

[0026] With the above structure, the working principle of this case is that after starting the motor 2, the motor 2 drives the rotating shaft 3 to rotate, and the rotating shaft 3 drives the three stirring rods 4 to rotate, and the three stirring rods 4 stir and mix the raw materials in the tank body 1. At the same time, the rotating shaft 3 drives the two reciprocating screws 51 to rotate through the belt, and the two reciprocating screws 51 drive the two ball sliders 52 to move up and down synchronously when the two reciprocating screws 51 rotate, and the two ball sliders 52 drive the two semicircular rings 53 to move up and down synchronously, and the solid raw materials in the tank body 1 are deposited in the annular gap between the cone 12 and the tank body 1. When the ball slider 52 moves, it drives the two rotating wheels 58, the two No. 1 slide shafts 59 and the two No. 2 slide shafts 510 inside it to move synchronously, and the two ball sliders When the block 52 and the two semicircular rings 53 are about to move to the highest position, the four upper contact rods 512 contact the four No. 2 slide shafts 510, so that when the rotating wheel 58 continues to move upward, the upper contact rods 512 press the No. 2 slide shaft 510 downward, causing the rotating wheel 58 to rotate. When the rotating wheel 58 rotates, it drives the No. 1 slide shaft 59 to slide upward. When the four No. 1 slide shafts 59 move upward, they respectively drive the two slides 56 to move upward through the four slot rods 57. When the slide 56 moves upward, it drives the multiple flip plates 54 to flip upward through the multiple pull rods 55. When the semicircular ring 53 moves to the highest position, the multiple flip plates 54 inside it are in a vertical state. Similarly, when the two ball sliders 52 and the two semicircular rings 53 are about to move to the lowest position When the semicircular ring 53 is at the bottom, the multiple flaps 54 are horizontal. In this process, the multiple flaps 54 squeeze the raw materials in the annular gap around the cone 12 into the inside of the semicircular ring 53 by rotating. After the multiple flaps 54 are horizontal, they can prevent the raw materials inside the semicircular ring 53 from falling. When the two semicircular rings 53 move upward again, the two flaps 54 are horizontal. The semicircular rings 53 transport the raw materials at the bottom of the tank body 1 upwards. When the two semicircular rings 53 are about to move to the highest point, the multiple flaps 54 flip upwards again, causing the raw materials inside the semicircular rings 53 to fall downwards, so that the accumulated raw materials sink again from the inside of the tank body 1, thereby increasing the contact area between the raw materials and the solution. When the carriage 56 moves upwards or downwards, it drives the multiple threaded rods 515 to move synchronously. When the threaded rods 515 move, they can drive the nut seat 513 to rotate through the principle of threaded connection. When the nut seat 513 rotates, it drives the multiple fork rods 514 to rotate. When the fork rods 514 rotate, they can stir the surrounding raw materials and disperse some agglomerated raw materials, thereby preventing some raw materials from agglomerating in the solution and affecting the dissolution and mixing efficiency.Through the setting of the anti-deposition component 5, the two semicircular rings 53 cooperate with the multiple flaps 54 to continuously transport the raw materials deposited at the bottom of the tank body 1 to a higher liquid level for re-addition during the mixing of the raw materials, so that the raw materials continuously repeat the process of sinking in the solution, promote the contact area between the raw materials and the solution, greatly improve the dissolution and mixing efficiency, and avoid the problem of low dissolution and mixing efficiency of some raw materials due to raw material accumulation; through the setting of multiple nut seats 513 and multiple fork rods 514 above them, when the multiple flaps 54 are turned over, the multiple fork rods 514 rotate and stir the raw materials in the two semicircular rings 53, so as to disperse the agglomerated raw materials and further promote the dissolution and mixing efficiency. ;

[0027] After the staff adds the solid raw material into the hopper 8, the raw material in the hopper 8 falls into the quantitative box 63. When the quantitative box 63 is full, the raw material stops falling. When the semicircular ring 53 located on the right is about to move upward to the highest point, the semicircular ring 53 contacts the slide 67 and pushes the slide 67 upward. When the slide 67 moves upward, it pushes the slide 62 to the left through the connecting rod 66. The slide 62 drives the quantitative box 63 to move to the left. The quantitative box 63 drives the bottom cover 64 to move to the left. The left ends of the two support rods 65 are set to be arc-shaped. In the process of moving to the left, the bottom cover 64 gradually separates from the two support rods 65, causing the bottom cover 64 to flip downward, and the raw material in the quantitative box 63 passes through the connecting rod 66. The material in the hopper 8 is prevented from falling down by the baffle plate on the right side of the dosing box 63. When the semicircular ring 53 turns to move downward, the dosing box 63 is reset to the right by the elastic force of the reset spring. When the bottom cover 64 moves to the right, it gradually slides along the arc-shaped left ends of the two support rods 65 to the top of the two support rods 65, so that the bottom cover 64 is reset to a horizontal state, achieving the effect of closing the bottom cover 64. The connecting rod 66 and the slide seat 67 are also reset accordingly. At this time, the baffle plate on the dosing box 63 no longer blocks the hopper 8, and the material in the hopper 8 continues to fall down. The bottom cover 64 is turned down and the quantitative box 63 is filled, achieving the effect of timing and quantitative feeding of raw materials; when the bottom cover 64 is flipped down, the bottom cover 64 drives the dredging rod 69 to move downward through the two curved rods 68, and the dredging rod 69 maintains pressure on the inner wall of the rear side of the quantitative box 63 due to the elastic force of the return spring, so that the dredging rod 69 contacts multiple semicircular blocks 610 in sequence when moving. In this process, the dredging rod 69 is subjected to the reverse thrust of the multiple semicircular blocks 610 and moves back and forth. The dredging rod 69 also moves back and forth when moving downward, dredging the raw materials inside the quantitative box 63, promoting the falling of the raw materials, and avoiding the accumulation of a small amount of raw materials in the quantitative box 63. ; Through the setting of the feeding component 6, the quantitative box 63 can be loaded with a certain amount of raw materials, and when the two semicircular rings 53 transport the raw materials deposited in the tank body 1, the quantitative box 63 puts the raw materials inside it into the tank body 1, achieving the effect of timed and quantitative feeding, avoiding the deposition of a large amount of raw materials caused by a one-time input of more raw materials, thereby affecting the dissolution and mixing efficiency; through the setting of the dredging rod 69, the dredging rod 69 can move back and forth while moving downward when the bottom cover 64 is flipped, so as to dredge the raw materials inside the quantitative box 63, promote the falling of the raw materials, and avoid a small amount of raw materials accumulating in the quantitative box 63 and unable to fall in time.

[0028] The raw materials dropped from the quantitative box 63 enter the groove plate 71, and the rotation of the shaft 3 drives the groove plate 71 to rotate synchronously. When the groove plate 71 rotates, the raw materials inside it are evenly scattered into the tank body 1 through multiple long grooves. The rotation of the shaft 3 drives the inclined wheel 75 to rotate at the same time. Due to the limiting effect of the two sets of round rods 72 on the two levers 73, the two levers 73 can only slide up and down, so that when the inclined wheel 75 rotates, the two levers 73 are driven by the two fork heads 74 to move up and down in opposite directions. During the process of alternating up and down movement of the two levers 73, the raw materials accumulated in the groove plate 71 are continuously spread evenly, further promoting the uniformity of the groove plate 71. The rotation of the groove plate 71 drives the multiple spring pieces 76 to rotate, and the multiple spring pieces 76 contact the two convex ... The block 77 vibrates, and the spring piece 76 drives the groove plate 71 to vibrate when vibrating, so that the groove plate 71 can also vibrate when rotating, and the groove plate 71 can promote the efficiency of raw material scattering by vibration; through the setting of the material distribution component 7, the quantitative box 63 puts the raw material onto the groove plate 71, and the groove plate 71 evenly scatters the raw material into the tank body 1 through multiple long grooves by rotating, and the two levers 73 can also spread the raw material in the groove plate 71 evenly by alternating up and down reciprocating motions, thereby improving the uniformity of the distribution of the raw material in the groove plate 71; through the cooperation of multiple spring pieces 76 and two protrusions 77, the groove plate 71 can also vibrate when rotating, and the groove plate 71 can promote the falling process of the raw material by vibration, and can also further improve the uniformity of the distribution of the raw material.

[0029] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An acrylonitrile catalyst raw material dissolving and mixing device, comprising a tank body (1), characterized in that: A cone (12) is installed at the bottom of the inner wall of the tank body (1), a rotating shaft (3) is rotatably installed between the top of the cone (12) and the top surface of the tank body (1), a motor (2) is installed at the top of the tank body (1), the output end of the motor (2) is connected to the rotating shaft (3), three stirring rods (4) are installed on the rotating shaft (3), a hopper (8) and a liquid inlet pipe (9) are installed at the top of the tank body (1), a discharge pipe (10) is installed at the bottom of the tank body (1), and a mounting rod (11) is installed on the inner wall of the tank body (1), and the inner wall of the mounting rod (11) is rotatably connected to the outer wall of the rotating shaft (3); It also includes an anti-deposition component (5) for preventing the raw material from being deposited at the bottom of the tank body (1); A feeding component (6) is used to feed raw materials in a quantitative manner; A material distribution component (7) for evenly distributing the material; The anti-deposition component (5) comprises two ball sliders (52), both of which are slidably mounted on the inner wall of the tank body (1), and two semicircular rings (53) are slidably mounted on the inner wall of the tank body (1), and the two ends of the two semicircular rings (53) are respectively connected to the two sides of the two ball sliders (52), and a plurality of flaps (54) are rotatably mounted in the semicircular rings (53), and two reciprocating screw rods (51) are rotatably mounted between the mounting rod (11) and the bottom inner wall of the tank body (1).

2. The acrylonitrile catalyst raw material dissolving and mixing device according to claim 1, characterized in that: A belt is sleeved between the two reciprocating screw rods (51) and the rotating shaft (3); a reciprocating thread groove is provided on the reciprocating screw rod (51); a ball thread hole is provided on the ball slider (52); the ball thread holes of the two ball sliders (52) are respectively threadedly connected to the reciprocating thread grooves of the two reciprocating screw rods (51) through balls; an annular gap is provided between the cone (12) and the inner wall of the tank body (1); the two ball sliders (52) and the two semicircular rings (53) are located in the annular gap between the cone (12) and the tank body (1).

3. The acrylonitrile catalyst raw material dissolving and mixing device according to claim 2, characterized in that: A slide (56) is slidably mounted on the inner wall of the semicircular ring (53), and a plurality of pull rods (55) are hingedly mounted on the bottom surface of the slide (56). The ends of the pull rods (55) away from the slide (56) are respectively hingedly mounted to a plurality of flaps (54). The two ends of the slide (56) are respectively connected to groove rods (57). Two rotating wheels (58) are rotatably mounted on the inner wall of the ball slider (52), and a first sliding shaft (59) and a second sliding shaft (510) are connected to the rotating wheels (58). Four lower abutment rods (511) are mounted on the inner wall of the bottom of the tank body (1), and four upper abutment rods (512) are mounted on the mounting rod (11).

4. The acrylonitrile catalyst raw material dissolving and mixing device according to claim 3, characterized in that: The two rotating wheels (58) inside the ball slider (52) are respectively located on both sides of the reciprocating screw (51), and the two rotating wheels (58) are arranged in a mirror image. The first sliding shaft (59) and the second sliding shaft (510) of the rotating wheel (58) are arranged in a central symmetric manner with the center of the rotating wheel (58) as the center. The four first sliding shafts (59) are respectively slidably connected to the inner walls of the four slot rods (57). When the four second sliding shafts (510) move downward, they respectively contact the four lower contact rods (511), and when the four second sliding shafts (510) move upward, they respectively contact the four upper contact rods (512).

5. The acrylonitrile catalyst raw material dissolving and mixing device according to claim 4, characterized in that: The inner wall of the semicircular ring (53) is rotatably mounted with a plurality of nut seats (513) via a bracket, the top surface of the slide (56) is connected to a plurality of threaded rods (515), the plurality of threaded rods (515) are respectively threadedly connected to the plurality of nut seats (513), and the outer wall of the nut seat (513) is connected to a plurality of fork rods (514).

6. The acrylonitrile catalyst raw material dissolving and mixing device according to claim 5, characterized in that: The feeding assembly (6) comprises two slide rails (61), the two slide rails (61) are both mounted on the inner wall of the tank body (1), a slide rod (62) is slidably connected between the two slide rails (61), a quantitative box (63) is connected to the slide rod (62), a bottom cover (64) is hingedly connected to the bottom of the quantitative box (63), a slide seat (67) is slidably mounted on the inner wall of the tank body (1), a connecting rod (66) is hingedly connected between the slide seat (67) and the slide rod (62), a return spring is arranged between the quantitative box (63) and the inner wall of the tank body (1), two support rods (65) are mounted on the inner wall of the tank body (1), the top surfaces of the two support rods (65) are in sliding contact with the bottom surface of the bottom cover (64), the top of the quantitative box (63) is in sliding contact with the bottom of the hopper (8), and a baffle is arranged on the outer wall on the right side of the top of the quantitative box (63).

7. The acrylonitrile catalyst raw material dissolving and mixing device according to claim 6, characterized in that: The top surface of the bottom cover (64) is connected to two curved rods (68), and a dredging rod (69) is slidably mounted on the two curved rods (68). A plurality of semicircular blocks (610) are connected to the rear inner wall of the quantitative box (63). A return spring is provided between the dredging rod (69) and one of the curved rods (68). The rear end of the dredging rod (69) contacts the plurality of semicircular blocks (610) in sequence when the dredging rod (69) moves.

8. The acrylonitrile catalyst raw material dissolving and mixing device according to claim 7, characterized in that: The cloth assembly (7) comprises a groove plate (71), wherein the groove plate (71) is connected to the outer wall of the rotating shaft (3), the groove plate (71) is located below the bottom cover (64), and a plurality of long grooves are provided on the groove plate (71). Two groups of round rods (72) are connected to the bottom of the mounting rod (11), and one group of round rods (72) is provided with two, and a lever (73) is slidably mounted on each of the two groups of round rods (72). One end of the lever (73) close to the rotating shaft (3) is connected to a fork head (74), and an outer wall of the rotating shaft (3) is connected to an inclined wheel (75), and the inclined wheel (75) is located between the two fork heads (74). The inner side of the fork head (74) contacts the inclined wheel (75), and the two levers (73) are both located above the groove plate (71).

9. The acrylonitrile catalyst raw material dissolving and mixing device according to claim 8, characterized in that: The top of the slot plate (71) is connected to a plurality of spring sheets (76), the bottom surface of the mounting rod (11) is connected to two protrusions (77), and the spring sheets (76) contact the two protrusions (77) in sequence when moving.

10. A process for dissolving and mixing acrylonitrile catalyst raw materials, characterized in that: The device for dissolving and mixing acrylonitrile catalyst raw materials according to any one of claims 1 to 9 further comprises the following steps: Step 1: Prepare the materials, mix the solid raw materials according to the proportion; Step 2: Add the solution into the tank (1) through the liquid inlet pipe (9), start the motor (2) and start stirring; Step 3: feeding, adding raw materials into the hopper (8), and feeding the raw materials onto the trough plate (71) in a timely and quantitative manner through the feeding component (6), and then the trough plate (71) evenly spreads the raw materials into the tank body (1); Step 4: mixing, dissolving and mixing the solution and the raw material by means of the cooperation of three stirring rods (4) and the anti-deposition component (5); Step 5: Heating: using steam to heat the inside of the tank (1) and maintaining the temperature within a set temperature range; Step 6: After the dissolution is completed, the raw material is transported to the next process through the discharge pipe (10) to clean the inside of the tank body (1).

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