Feeding system for potassium sulfate production

Abstract

A feeding system for potassium sulfate production relates to the technical field of raw material feeding equipment and comprises a horizontally-arranged supporting base, a vertically-arranged reaction kettle body and a supporting bracket are fixedly arranged at the top of the supporting base, two vertically-arranged raw material tanks are fixedly inserted into the top of the supporting bracket, and a built-in mixing assembly is arranged on the upper inner wall of the reaction kettle body. Quantitative material taking assemblies are arranged on the lower inner walls of the raw material tanks, the built-in mixing assembly is communicated with the two quantitative material taking assemblies through a communication assembly, a transmission rod which is rotationally arranged is coaxially arranged at the inner bottom of the reaction kettle body, and a plurality of stirring blades are uniformly distributed on the outer wall of the transmission rod in the circumferential direction; an exhaust pipe communicated with the inner cavity of the reaction kettle body is fixedly arranged at a position, below the built-in mixing assembly, of the outer wall of the reaction kettle body. The problem that an existing feeding mode for producing potassium sulfate is poor in raw material feeding continuity is solved; the adjustability of the feeding ratio of the raw materials is poor. And the distribution uniformity of the fed raw materials is poor.

Description

Technical Field

[0001] The invention relates to the technical field of raw material feeding equipment, in particular to a feeding system for potassium sulfate production. Background Art

[0002] Potassium sulfate, as an important agricultural potash fertilizer, enjoys a wide reputation worldwide for its efficient nutrient supply capacity and unique adaptability to specific crops. Potassium sulfate is rich in potassium and sulfur elements required for crop growth, and has a significant effect on improving soil structure and improving crop quality. However, the production process of potassium sulfate, especially the feeding of raw materials, has long been a key factor restricting production efficiency and cost control.

[0003] There are many methods for producing potassium sulfate, mainly the following methods: Mannheim method, substitution method, double decomposition method, alunite reduction pyrolysis method, etc. Among them, the Mannheim method is the most commonly used production method in modern enterprises. This method uses potassium chloride and concentrated sulfuric acid as raw materials and reacts in a high temperature environment to produce potassium sulfate. The existing feeding method for producing potassium sulfate has gradually exposed its shortcomings during use, mainly in the following aspects: First, the continuity of raw material feeding is poor. Specifically, the reactants concentrated sulfuric acid and potassium chloride need to absorb a large amount of heat during the reaction. In order to ensure that sufficient heat is provided to the reactants during the reaction, the raw materials are usually fed in small doses continuously. Chemical production requires a suitable reactant ratio. Therefore, before each feeding of concentrated sulfuric acid and potassium chloride, the staff needs to use the corresponding metering tank to measure the amount of concentrated sulfuric acid and potassium chloride. After the metering is completed, it is added to the reactor through the feeding equipment. The metering and feeding process of concentrated sulfuric acid and potassium chloride takes a lot of time. During the continuous feeding process to the reactor, the interval between raw material addition is long and unstable. Therefore, the continuity of raw material feeding is poor, and insufficient raw material supply leads to a slow reaction rate, which in turn affects the production efficiency of potassium sulfide.

[0004] Second, the raw material feeding ratio has poor adjustability. Specifically, in the actual production process of potassium sulfide, there are unreacted reactants remaining in the reactor, and the metering tank can only take and feed materials in a quantitative manner. It is impossible to adjust the amount of raw materials added according to the remaining raw materials in the reactor. Therefore, the raw material feeding ratio has poor adjustability, resulting in serious waste of raw materials and increased production costs of potassium sulfide.

[0005] Third, the uniformity of the raw material distribution after feeding is poor. Specifically, when feeding into the reactor, the measured concentrated sulfuric acid and potassium chloride need to be added one by one. Concentrated sulfuric acid has a certain viscosity. The concentrated sulfuric acid solution and potassium chloride particles added to the reactor have poor mixing degree. Therefore, the uniformity of the raw material distribution after feeding is poor. It takes a long time for the agitator to completely mix the raw materials added to the reactor, which leads to a low reaction rate and affects the production efficiency of potassium sulfide.

[0006] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the invention

[0007] In view of the defects in the prior art, the technical problem to be solved by the present invention is to provide a feeding system for potassium sulfate production, which can automatically and continuously feed raw materials into a reactor, and the raw material feeding interval can be adjusted in real time according to the specific reaction conditions, and the raw material feeding interval is stable. The raw material feeding continuity of the device is good, and the function of continuous and stable feeding into the reactor is realized, so as to ensure rapid reaction and improve the production efficiency of potassium sulfide; The equipment can adjust the amount of raw materials in real time according to the remaining raw materials in the reactor, so the raw material feeding ratio of the equipment is well adjustable, which reduces the waste of raw materials and reduces the production cost of potassium sulfide; The equipment can pre-mix the raw materials when feeding into the reactor, so that the raw materials added into the reactor have a high degree of mixing. Therefore, the raw materials after feeding into the equipment have good uniformity of distribution, which shortens the time required for complete mixing of the raw materials added into the reactor, speeds up the reaction rate, and further improves the production efficiency of potassium sulfide.

[0008] To solve the above problems, the present invention provides the following technical solutions: A feeding system for potassium sulfate production, comprising a horizontally arranged support base, a vertically arranged reactor body and a support bracket are fixedly provided on the top of the support base, two vertically arranged raw material tanks are fixedly inserted on the top of the support bracket, an upper inner wall of the reactor body is provided with a built-in mixing component, and the lower inner walls of the raw material tanks are provided with quantitative material taking components, the built-in mixing components are connected with the two quantitative material taking components through a connecting component, a rotatably arranged transmission rod is coaxially provided at the inner bottom of the reactor body, and a plurality of stirring blades are evenly distributed on the outer wall of the transmission rod along the circumferential direction, an exhaust pipe connected to the inner cavity of the reactor body is fixedly provided at a position below the built-in mixing component on the upper outer wall of the reactor body, a waste valve connected to the inner cavity of the reactor body is fixedly provided at the bottom of the reactor body, and a feeding pipe connected to the inner cavity of the raw material tank is provided on the top, and the two feeding pipes are connected to an external concentrated sulfuric acid storage bin and an external potassium chloride storage bin respectively; The quantitative material taking component comprises a fixed circular plate coaxially fixedly connected to the lower inner wall of the raw material tank, and a coaxially arranged upper rotating circular plate and a lifting cylinder are arranged above and below the fixed circular plate, and the upper rotating circular plate is rotatably sealed and connected to the inner wall of the raw material tank and its top is frictionally abutted against the fixed circular plate, and the lifting cylinder is vertically slidably connected to the inner wall of the raw material tank, and the top of the lifting cylinder is opened. The top of the lifting cylinder is coaxially provided with a lower rotating circular plate connected to the inner wall of the raw material tank, and the bottom of the lower rotating circular plate is frictionally abutted against the bottom of the lifting cylinder, and the bottom of the upper rotating circular plate is evenly distributed along the circumferential direction with a plurality of upper accommodating tubes vertically penetrated, and the upper port of the upper accommodating tube is flush with the top of the upper rotating circular plate, and the top of the lower rotating circular plate is evenly distributed along the circumferential direction with a plurality of lower accommodating tubes vertically penetrated, and the lower port of the lower accommodating tube is flush with the bottom of the lower rotating circular plate. The top end of the lifting cylinder is provided with a fixed column, and the bottom end of the lifting cylinder is provided with a built-in discharge hopper which is connected with the driven pulley to the upper and lower ends of the lifting cylinder.

[0009] As an optimized solution, the built-in mixing component includes an upper rotating circular plate, a transition circular plate, a lower rotating circular plate and a supporting circular plate which are coaxially arranged in sequence from top to bottom. The top and bottom of the transition circular plate are fixedly connected to the upper rotating circular plate and the lower rotating circular plate respectively. The upper rotating circular plate, the transition circular plate and the lower rotating circular plate are all rotatably and sealedly connected to the inner wall of the reactor body. The supporting circular plate is fixedly connected to the inner wall of the reactor body. The top of the transition circular plate is uniformly provided with a plurality of vertically penetrating receiving grooves along the circumferential direction. The bottom of the receiving groove is a truncated cone structure. The position of the bottom of the upper rotating circular plate located in the receiving groove is provided with a vertically penetrating feeding hole. The position of the bottom of the upper rotating circular plate located in the receiving groove is coaxially provided with a rotating shaft which is rotatably arranged. The outer wall of the rotating shaft is uniformly provided with a plurality of mixing blades along the circumferential direction. The inner top of the reactor body is coaxially provided with a fixedly arranged driving gear ring. The top of the rotating shaft passes through the upper rotating circular plate upward and is fixedly connected with a driven gear meshing with the driving gear ring. The inner top of the reactor body is coaxially provided with a rotatably arranged transmission The transmission shaft is coaxially fixedly connected with the upper rotating circular plate, and a plurality of vertically penetrating avoidance grooves are evenly distributed on the top of the lower rotating circular plate along the circumferential direction. One of the inner walls of the avoidance groove is an arc-shaped structure. A sliding plate is horizontally arranged in the avoidance groove and is radially slidable along the lower rotating circular plate. One of the side walls of the sliding plate is an arc-shaped structure. The opposite end of the sliding plate is correspondingly connected to the relative inner wall of the avoidance groove in a sliding sealing manner. A guide arc plate is coaxially fixedly connected with the top of the support circular plate. The top of the support circular plate is provided with a A sliding arc plate is arranged to move radially and horizontally, and the tops of the sliding arc plate and the guide arc plate are both provided with arc grooves. When the sliding arc plate moves to abut against the guide arc plate, the sliding arc plate and the guide arc plate are pieced together into a complete circular structure. A vertically arranged fixed arc plate is fixedly arranged at the bottom of the sliding plate, and the fixed arc plate extends downward into the arc groove and frictionally contacts with the inner wall of the arc groove. A vertically penetrating discharge hole is provided on the top of the supporting circular plate, and the inner diameter of the discharge hole is larger than the diameter of the lower opening of the accommodating groove.

[0010] As an optimized solution, the connecting component includes a fixed bracket vertically fixed on the top of the reactor body, a transition bucket is vertically fixed on the top of the fixed bracket, the top of the transition bucket is sealed, a fixed discharge hopper coaxially arranged with the built-in discharge hopper is fixed at the bottom of the raw material tank, the upper port of the fixed discharge hopper extends upward through the raw material tank to the interior, the fixed discharge hopper is connected with the transition bucket through a feeding pipe, a lifting plate with a vertical lifting arrangement is horizontally arranged in the fixed bracket, a lifting pipe vertically penetrating is fixed on the top of the lifting plate, the lower port of the transition bucket extends into the lifting pipe and is vertically slidingly sealed with the lifting pipe, the lower port of the lifting pipe downwardly penetrates the reactor body and is slidingly sealed with the reactor body, the lifting pipe and the discharge hole are circumferentially evenly distributed on both sides of the transmission shaft, and the outer diameter of the lifting pipe is smaller than the diameter of the feed hole.

[0011] As an optimized solution, a control motor is fixedly provided at the bottom of the reactor body, and the output end of the control motor passes through the reactor body and is fixedly connected to the transmission rod.

[0012] As an optimized solution, a servo motor is fixedly provided on the top of the raw material tank, and the output end of the servo motor passes through the raw material tank and is fixedly connected to the driving shaft.

[0013] As an optimized solution, two vertically arranged lifting and telescopic cylinders are fixedly inserted in the bottom of the raw material tank, and the telescopic ends of the lifting and telescopic cylinders are fixedly connected to the lifting cylinder.

[0014] As an optimized solution, a driving motor is fixedly provided on the top of the reactor body, and the output end of the driving motor passes through the reactor body and is fixedly connected to the transmission shaft.

[0015] As an optimized solution, a horizontally arranged driving telescopic cylinder is fixedly provided on the top of the supporting circular plate, and the telescopic end of the driving telescopic cylinder is fixedly connected to the sliding arc plate.

[0016] As an optimized solution, two vertically arranged electrically controlled telescopic cylinders are fixedly provided on the top of the reactor body, and the telescopic ends of the electrically controlled telescopic cylinders are fixedly connected to the lifting plate.

[0017] As an optimized solution, the reactor body is fixedly connected to the support base via a plurality of support columns.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. When feeding materials into the reactor body, the servo motor drives the driving shaft to rotate, and then drives the upper rotating circular plate, the fixed column, the fixed tube and the lower rotating circular plate to rotate, thereby driving the upper receiving tube and the lower receiving tube to rotate synchronously. When the upper port of the upper receiving tube rotates to overlap with the leakage trough, the raw materials above the fixed circular plate enter the upper receiving tube and the lower receiving tube through the leakage trough for quantitative material removal. The upper receiving tube and the lower receiving tube filled with raw materials continue to rotate under the drive of the servo motor. When the upper receiving tube and the lower receiving tube filled with raw materials rotate to the lower port of the lower receiving tube and overlap with the discharge trough, the raw materials in the upper receiving tube and the lower receiving tube pass through the discharge trough, the built-in discharge hopper, the fixed discharge hopper and the feed pipe in turn into the transition hopper. Different raw material tanks in the two raw material tanks The raw materials are discharged into the transition bucket for preliminary mixing at the same time and enter the reactor body through the lifting pipe. The upper holding tube and the lower holding tube in the two raw material tanks can be driven to rotate synchronously through two servo motors, so that the raw materials in the two raw material tanks can be automatically and continuously added to the reactor body, and the raw material feeding interval can be adjusted by the rotation interval of the servo motor. The equipment can automatically and continuously feed raw materials into the reactor body, and the raw material feeding interval can be adjusted in real time according to the reaction conditions of the raw materials in the reactor body. The raw material feeding interval is stable, and the raw material feeding continuity of the equipment is good, realizing the function of continuous and stable feeding into the reactor body, ensuring rapid reaction, and improving the production efficiency of potassium sulfide; 2. When feeding materials into the reactor body, the raw materials in the transition bucket enter the containing tank through the lifting pipe. When the raw materials in one group of the upper containing tube and the lower containing tube in the two raw material tanks are completely discharged into the containing tank, the electric control telescopic cylinder drives the lifting plate and the lifting tube to move upward until the lower port of the lifting tube moves above the upper rotating circular plate. The driving motor drives the transmission shaft to rotate, and then drives the upper rotating circular plate, the transition circular plate and the lower rotating circular plate to rotate. The rotating shaft and the driven gear rotate along the axis of the upper rotating circular plate under the drive of the upper rotating circular plate. At the same time, the driven gear rotates under the drive gear ring. The lower rotating plate drives the rotating shaft and the mixing blades to rotate in the receiving tank, and the rotating mixing blades stir and mix the raw materials in the receiving tank. When the empty receiving tank rotates to the bottom of the lifting tube, the electric telescopic cylinder drives the lifting plate and the lifting tube to move downward until the lower end of the lifting tube passes through the feed hole and enters the receiving tank. The two servo motors respectively drive the upper receiving tube and the lower receiving tube filled with raw materials in the two raw material tanks to rotate and add the raw materials inside to the empty receiving tank. During the rotation of the lower rotating circular plate, the fixed arc plate rotates along the arc groove in the guide arc plate During this process, the sliding plate always blocks the lower port of the receiving tank. When the fixed arc plate rotates to the arc groove in the sliding arc plate, the telescopic end of the telescopic cylinder is driven to shrink, thereby driving the sliding arc plate, the fixed arc plate and the sliding plate to move along the radial direction of the lower rotating circular plate. At this time, the lower port of the receiving tank is opened, and the mixed raw materials in the receiving tank after stirring and mixing enter the reactor body through the avoidance groove and the discharge hole. After the mixed raw materials in the receiving tank are discharged, the telescopic cylinder is driven to drive the sliding plate to reset, and then the lower port of the receiving tank is blocked again. Repeating the above process can continuously discharge the mixed raw materials after stirring and mixing into the reactor body. At the same time, the control motor drives the transmission rod and the stirring blade to rotate, and the rotating stirring blade stirs and mixes the mixed raw materials in the reactor body and reacts. When the equipment is fed into the reactor body, the raw materials can be pre-mixed, so that the raw materials added to the reactor body have a high degree of mixing. Therefore, the raw materials after feeding are well distributed evenly, which shortens the time required for the raw materials added to the reactor body to be completely mixed, accelerates the reaction rate, and further improves the production efficiency of potassium sulfide; 3. During the reaction, the staff will take samples to test the remaining raw materials in the reactor body. When the remaining amount of one of the raw materials is too much, the lifting and telescopic cylinder drives the lifting cylinder to slide vertically, and then drives the lower containing tube to move vertically. When the lower containing tube and the upper containing tube slide vertically relative to each other, the total capacity of the same group of upper containing tubes and lower containing tubes changes. Therefore, the ratio of the two raw materials can be adjusted by adjusting the relative position of the upper containing tube and the lower containing tube. The equipment can adjust the amount of raw materials added in real time according to the remaining raw materials in the reactor body. Therefore, the raw material feeding ratio of the equipment is good, which reduces the waste of raw materials and reduces the production cost of potassium sulfide. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0020] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the structure inside the reactor body of the present invention; Figure 3 This is a schematic diagram of the structure inside the raw material tank of the present invention; Figure 4 It is an exploded view of the quantitative material taking component of the present invention; Figure 5 It is a structural schematic diagram of the lower accommodation tube of the present invention when it slides to the highest position; Figure 6 It is a structural schematic diagram of the built-in mixing component of the present invention; Figure 7 An exploded view of the built-in mixing assembly of the present invention; Figure 8 This is a schematic structural diagram of the bottom of the lower rotating circular plate of the present invention; Fig. 9 This is a schematic diagram of the structure of the top of the supporting circular plate of the present invention; Fig.10 It is a structural schematic diagram of the present invention when the lower port of the receiving groove is opened.

[0021] In the figure: 1-support base; 2-support column; 3-reactor body; 4-connecting component; 5-support bracket; 6-raw material tank; 7-waste discharge valve; 8-transmission rod; 9-stirring blade; 10-built-in mixing component; 11-support circular plate; 12-lower rotating circular plate; 13-transition circular plate; 14-upper rotating circular plate; 15-feeding hole; 16-transmission shaft; 17-drive motor; 18-accommodating tank; 19-exhaust pipe; 20-control motor; 21-feeding pipe; 22-built-in discharge hopper; 23-lifting cylinder; 24-lower rotating circular plate; 25-lower accommodating tube; 26-upper accommodating tube; 27-upper rotating circular plate; 28-fixed Circular plate; 29-quantitative material taking component; 30-servo motor; 31-feeding pipe; 32-driving shaft; 33-leakage trough; 34-fixed column; 35-fixed pipe; 36-lifting and telescopic cylinder; 37-discharge trough; 38-fixed discharge hopper; 39-driven gear; 40-driving gear ring; 41-rotating shaft; 42-mixing blade; 43-sliding arc plate; 44-guide arc plate; 45-fixed arc plate; 46-discharge hole; 47-sliding plate; 48-avoidance groove; 49-driving telescopic cylinder; 50-lifting pipe; 51-lifting plate; 52-transition bucket; 53-fixed bracket; 54-arc groove; 55-electrically controlled telescopic cylinder. DETAILED DESCRIPTION

[0022] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0023] like Figures 1 to 10 As shown, a feeding system for potassium sulfate production comprises a horizontally arranged support base 1, a vertically arranged reactor body 3 and a support bracket 5 are fixedly provided on the top of the support base 1, two vertically arranged raw material tanks 6 are fixedly inserted on the top of the support bracket 5, a built-in mixing component 10 is provided on the upper inner wall of the reactor body 3, and a quantitative material taking component 29 is provided on the lower inner wall of the raw material tank 6, and the built-in mixing component 10 is connected with the two quantitative material taking components 29 through a connecting component 4, a rotatably arranged transmission rod 8 is coaxially provided on the inner bottom of the reactor body 3, and a plurality of stirring blades 9 are evenly distributed on the outer wall of the transmission rod 8 along the circumferential direction, an exhaust pipe 19 connected to the inner cavity of the reactor body 3 is fixedly provided at a position below the built-in mixing component 10, and a waste discharge valve 7 connected to the inner cavity of the reactor body 3 is fixedly provided at the bottom of the reactor body 3, and a feeding pipe 31 connected to the inner cavity of the raw material tank 6 is provided on the top, and the two feeding pipes 31 are connected to the external concentrated sulfuric acid storage bin and the external potassium chloride storage bin respectively; The quantitative material taking component 29 includes a fixed circular plate 28 coaxially fixed to the lower inner wall of the raw material tank 6, and a coaxially arranged upper rotating circular plate 27 and a lifting cylinder 23 are arranged below the fixed circular plate 28. The upper rotating circular plate 27 is rotatably sealed and connected to the inner wall of the raw material tank 6, and its top is frictionally abutted against the fixed circular plate 28. The lifting cylinder 23 is vertically slidably connected to the inner wall of the raw material tank 6. The top of the lifting cylinder 23 is open. A lower rotating circular plate 24 is coaxially provided in the lifting cylinder 23 and is rotatably sealed and connected to the inner wall. The bottom of the lower rotating circular plate 24 is frictionally abutted against the inner bottom of the lifting cylinder 23. The bottom of the upper rotating circular plate 27 is uniformly distributed along the circumferential direction with a plurality of upper accommodating tubes 26 vertically penetrated, and the upper port of the upper accommodating tube 26 is flush with the top of the upper rotating circular plate 27. The top of the lower rotating circular plate 24 is uniformly distributed along the circumferential direction with a plurality of lower accommodating tubes 25 vertically penetrated, and the lower port of the lower accommodating tube 25 is flush with the bottom of the lower rotating circular plate 24. The lower ports of the plurality of upper accommodating tubes 26 are uniformly distributed along the circumferential direction. The upper end of the raw material tank 6 is provided with a driving shaft 32 which is arranged to rotate coaxially. The bottom of the upper rotating circular plate 27 is fixedly connected with a fixed column 34 coaxially. The top of the lower rotating circular plate 24 is fixedly connected with a fixed tube 35 coaxially. The bottom end of the fixed column 34 extends downward into the fixed tube 35 and is vertically slidably connected with the fixed tube 35. The inner top of the raw material tank 6 is provided with a driving shaft 32 which is arranged to rotate coaxially. The bottom end of the driving shaft 32 passes through the fixed circular plate 28 downward and is connected with the upper rotating circular plate 27. The plate 27 is fixedly connected, the driving shaft 32 is rotatably and sealedly connected with the fixed circular plate 28, and the bottom of the fixed circular plate 28 and the lifting cylinder 23 are respectively provided with a leakage groove 33 and a discharge groove 37 vertically penetrating therethrough, the diameters of the leakage groove 33 and the discharge groove 37 correspond to the same inner diameters of the upper accommodating tube 26 and the lower accommodating tube 25, the leakage groove 33 and the discharge groove 37 are evenly distributed on both sides of the driving shaft 32 along the circumferential direction, and a built-in discharge hopper 22 connected to the discharge groove 37 is fixedly provided at the bottom of the lifting cylinder 23.

[0024] The built-in mixing assembly 10 includes an upper rotating circular plate 14, a transition circular plate 13, a lower rotating circular plate 12 and a supporting circular plate 11 which are coaxially arranged in sequence from top to bottom. The top and bottom of the transition circular plate 13 are fixedly connected to the upper rotating circular plate 14 and the lower rotating circular plate 12 respectively. The upper rotating circular plate 14, the transition circular plate 13 and the lower rotating circular plate 12 are all rotatably sealed and connected to the inner wall of the reactor body 3. The supporting circular plate 11 is fixedly connected to the inner wall of the reactor body 3. The top of the transition circular plate 13 is evenly distributed along the circumferential direction with a plurality of vertically penetrating receiving grooves 18. The bottom of the receiving grooves 18 is a truncated cone structure. The upper rotating circular plate 14 A feed hole 15 is vertically penetrated at the bottom of the upper rotating circular plate 14 at the bottom of the upper rotating circular plate 14. A rotating shaft 41 is coaxially arranged to rotate. A plurality of mixing blades 42 are evenly distributed on the outer wall of the rotating shaft 41 along the circumferential direction. A fixed driving gear ring 40 is coaxially arranged at the inner top of the reactor body 3. The top of the rotating shaft 41 passes through the upper rotating circular plate 14 upward and is fixedly connected to a driven gear 39 meshing with the driving gear ring 40. A transmission shaft 16 is coaxially arranged to rotate at the inner top of the reactor body 3. The transmission shaft 16 is coaxially fixedly connected to the upper rotating circular plate 14. The top of the lower rotating circular plate 12 is uniformly distributed along the circumferential direction with a plurality of vertically penetrating avoidance grooves 48, one of the inner walls of the avoidance groove 48 is an arc-shaped structure, a sliding plate 47 is horizontally arranged in the avoidance groove 48 and is radially slidable along the lower rotating circular plate 12, one of the side walls of the sliding plate 47 is an arc-shaped structure, and the opposite end of the sliding plate 47 is correspondingly connected to the relative inner wall of the avoidance groove 48 in a sliding sealing manner, the top of the supporting circular plate 11 is coaxially fixed with a guide arc plate 44, and the top of the supporting circular plate 11 is provided with a sliding arc plate 44 arranged to move horizontally along its radial direction. 3. The tops of the sliding arc plate 43 and the guiding arc plate 44 are both provided with an arc groove 54. When the sliding arc plate 43 moves to abut against the guiding arc plate 44, the sliding arc plate 43 and the guiding arc plate 44 are pieced together into a complete circular structure. The bottom of the sliding plate 47 is fixed with a vertically arranged fixed arc plate 45, which extends downward into the arc groove 54 and is in frictional contact with the inner wall of the arc groove 54. The top of the supporting circular plate 11 is provided with a vertically penetrating discharge hole 46, and the inner diameter of the discharge hole 46 is larger than the diameter of the lower opening of the accommodating groove 18.

[0025] The connecting component 4 includes a fixed bracket 53 vertically fixed on the top of the reactor body 3, a transition bucket 52 is vertically fixed on the top of the fixed bracket 53, and the top of the transition bucket 52 is sealed. A fixed discharge hopper 38 coaxially arranged with the built-in discharge hopper 22 is fixed at the bottom of the raw material tank 6, and the upper port of the fixed discharge hopper 38 extends upward through the raw material tank 6 to the inside, and the fixed discharge hopper 38 is connected with the transition bucket 52 through the feed pipe 21. A lifting plate 51 is horizontally arranged in the fixed bracket 53 for vertical lifting and lowering, and a lifting pipe 50 is fixed on the top of the lifting plate 51 for vertical penetration. The lower port of the transition bucket 52 extends into the lifting pipe 50 and is vertically slidably sealed with the lifting pipe 50. The lower port of the lifting pipe 50 downwardly penetrates the reactor body 3 and is slidably sealed with the reactor body 3. The lifting pipe 50 and the discharge hole 46 are evenly distributed on both sides of the transmission shaft 16 along the circumferential direction, and the outer diameter of the lifting pipe 50 is smaller than the diameter of the feed hole 15.

[0026] A control motor 20 is fixedly provided at the bottom of the reactor body 3 , and an output end of the control motor 20 passes through the reactor body 3 and is fixedly connected to the transmission rod 8 .

[0027] A servo motor 30 is fixedly provided on the top of the raw material tank 6 , and an output end of the servo motor 30 passes through the raw material tank 6 and is fixedly connected to a driving shaft 32 .

[0028] Two vertically arranged lifting and telescopic cylinders 36 are fixedly inserted into the bottom of the raw material tank 6 , and the telescopic ends of the lifting and telescopic cylinders 36 are fixedly connected to the lifting cylinder 23 .

[0029] A driving motor 17 is fixedly provided on the top of the reactor body 3 , and an output end of the driving motor 17 passes through the reactor body 3 and is fixedly connected to the transmission shaft 16 .

[0030] A horizontally arranged driving telescopic cylinder 49 is fixedly provided on the top of the supporting circular plate 11 , and a telescopic end of the driving telescopic cylinder 49 is fixedly connected to the sliding arc plate 43 .

[0031] Two vertically arranged electric-controlled telescopic cylinders 55 are fixedly provided on the top of the reactor body 3 , and the telescopic ends of the electric-controlled telescopic cylinders 55 are fixedly connected to the lifting plate 51 .

[0032] The reactor body 3 is fixedly connected to the support base 1 through a plurality of support columns 2 .

[0033] The working principle of this device is: When feeding into the reactor body 3, the servo motor 30 drives the driving shaft 32 to rotate, and then drives the upper rotating circular plate 27, the fixed column 34, the fixed tube 35 and the lower rotating circular plate 24 to rotate, thereby driving the upper receiving tube 26 and the lower receiving tube 25 to rotate synchronously. When the upper port of the upper receiving tube 26 rotates to overlap with the leakage groove 33, the raw materials above the fixed circular plate 28 enter the upper receiving tube 26 and the lower receiving tube 25 through the leakage groove 33 for quantitative material removal. The upper receiving tube 26 and the lower receiving tube 25 filled with raw materials continue to rotate under the drive of the servo motor 30. When the upper receiving tube 26 and the lower receiving tube 25 filled with raw materials rotate to the lower port of the lower receiving tube 25 and overlap with the discharge groove 37, the raw materials in the upper receiving tube 26 and the lower receiving tube 25 pass through the discharge groove 37, the built-in discharge hopper 22, the fixed discharge hopper 38 and the feed pipe 21 in turn. Entering into the transition bucket 52, different raw materials in the two raw material tanks 6 are discharged into the transition bucket 52 at the same time for preliminary mixing and enter into the reactor body 3 through the lifting pipe 50. The upper receiving tube 26 and the lower receiving tube 25 in the two raw material tanks 6 can be driven to rotate synchronously by two servo motors 30, so that the raw materials in the two raw material tanks 6 can be automatically and continuously added into the reactor body 3, and the raw material feeding interval time can be adjusted by the rotation interval time of the servo motor 30. The equipment can automatically and continuously feed raw materials into the reactor body 3, and the raw material feeding interval time can be adjusted in real time according to the reaction conditions of the raw materials in the reactor body 3, and the raw material feeding interval time is stable. The raw material feeding continuity of the equipment is good, and the function of continuous and stable feeding into the reactor body 3 is realized, ensuring rapid reaction and improving the production efficiency of potassium sulfide; When feeding into the reactor body 3, the raw materials in the transition bucket 52 enter the containing tank 18 through the lifting tube 50. When the raw materials in one group of the upper containing tube 26 and the lower containing tube 25 in the two raw material tanks 6 are completely discharged into the containing tank 18, the electric control telescopic cylinder 55 drives the lifting plate 51 and the lifting tube 50 to move upward until the lower end of the lifting tube 50 moves to the upper rotating circular plate 14. The driving motor 17 drives the transmission shaft 16 to rotate, and then drives the upper rotating circular plate 14, the transition circular plate 13 and the lower rotating circular plate 12 to rotate. The rotating shaft 41 and the driven gear 39 rotate along the axis of the upper rotating circular plate 14 under the drive of the upper rotating circular plate 14. At the same time, the driven gear 39 rotates along the axis of the upper rotating circular plate 14. 39, under the cooperation of the driving gear ring 40, drives the rotating shaft 41 and the mixing blades 42 to rotate in the receiving tank 18, and the rotating mixing blades 42 stir and mix the raw materials in the receiving tank 18. When the empty receiving tank 18 rotates to the bottom of the lifting tube 50, the electric control telescopic cylinder 55 drives the lifting plate 51 and the lifting tube 50 to move downward until the lower end of the lifting tube 50 passes through the feed hole 15 and enters the receiving tank 18. The two servo motors 30 respectively drive the upper receiving tube 26 and the lower receiving tube 25 filled with raw materials in the two raw material tanks 6 to rotate and add the raw materials inside to the empty receiving tank 18. During the rotation of the lower rotating circular plate 12, the fixed arc plate 4 5 rotates along the arc groove 54 in the guide arc plate 44. During this process, the sliding plate 47 always blocks the lower end of the receiving groove 18. When the fixed arc plate 45 rotates to the arc groove 54 in the sliding arc plate 43, the telescopic end of the telescopic cylinder 49 is driven to contract, thereby driving the sliding arc plate 43, the fixed arc plate 45 and the sliding plate 47 to move along the radial direction of the lower rotating circular plate 12. At this time, the lower end of the receiving groove 18 is opened, and the mixed raw materials in the receiving groove 18 after stirring and mixing enter the interior of the reactor body 3 through the avoidance groove 48 and the discharge hole 46. After the mixed raw materials in the receiving groove 18 are discharged, the telescopic cylinder 49 is driven to drive the sliding plate 47 to reset. Then, the lower port of the containing tank 18 is blocked again, and the above process is repeated to continuously discharge the mixed raw materials after stirring and mixing into the reactor body 3. At the same time, the motor 20 is controlled to drive the transmission rod 8 and the stirring blade 9 to rotate, and the rotating stirring blade 9 stirs and mixes the mixed raw materials in the reactor body 3 and reacts. When the equipment feeds the raw materials into the reactor body 3, the raw materials can be pre-mixed, so that the raw materials added to the reactor body 3 have a high degree of mixing. Therefore, the raw materials after feeding are evenly distributed in the equipment, which shortens the time required for complete mixing of the raw materials added to the reactor body 3, accelerates the reaction rate, and further improves the production efficiency of potassium sulfide; During the reaction, the staff takes samples to test the remaining raw materials in the reactor body 3. When the remaining amount of one of the raw materials is too much, the lifting and telescopic cylinder 36 drives the lifting cylinder 23 to slide vertically, and then drives the lower containing tube 25 to move vertically. When the lower containing tube 25 and the upper containing tube 26 slide vertically relative to each other, the total capacity of the same group of upper containing tubes 26 and lower containing tubes 25 changes. Therefore, the ratio of the two raw materials can be adjusted by adjusting the relative position of the upper containing tube 26 and the lower containing tube 25. The equipment can adjust the amount of raw materials added in real time according to the remaining raw materials in the reactor body 3. Therefore, the raw material feeding ratio of the equipment is well adjustable, which reduces the waste of raw materials and reduces the production cost of potassium sulfide.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A feeding system for potassium sulfate production, characterized by: The invention comprises a horizontally arranged support base (1), a vertically arranged reactor body (3) and a support bracket (5) are fixedly arranged on the top of the support base (1), two vertically arranged raw material tanks (6) are fixedly inserted on the top of the support bracket (5), an upper inner wall of the reactor body (3) is provided with a built-in mixing component (10), and the lower inner walls of the raw material tanks (6) are provided with quantitative material taking components (29), the built-in mixing component (10) is connected to the two quantitative material taking components (29) through a connecting component (4), and the inner bottom of the reactor body (3) is provided with a built-in mixing component (10). A transmission rod (8) is coaxially arranged to rotate, and a plurality of stirring blades (9) are evenly distributed on the outer wall of the transmission rod (8) along the circumferential direction; an exhaust pipe (19) connected to the inner cavity of the reactor body (3) is fixedly arranged on the upper outer wall below the built-in mixing assembly (10); a waste discharge valve (7) connected to the inner cavity of the reactor body (3) is fixedly arranged at the bottom; a feed pipe (31) connected to the inner cavity of the raw material tank (6) is provided on the top of the raw material tank (6); the two feed pipes (31) are connected to an external concentrated sulfuric acid storage bin and an external potassium chloride storage bin respectively; The quantitative material taking component (29) comprises a fixed circular plate (28) coaxially fixed to the lower inner wall of the raw material tank (6); an upper rotating circular plate (27) and a lifting cylinder (23) are arranged coaxially below the fixed circular plate (28); the upper rotating circular plate (27) is rotatably sealed to the inner wall of the raw material tank (6) and its top is frictionally abutted against the fixed circular plate (28); the lifting cylinder (23) is vertically slidably connected to the inner wall of the raw material tank (6); the top of the lifting cylinder (23) is open; a lower rotating circular plate (27) is coaxially arranged inside the lifting cylinder (23) and is rotatably sealed to the inner wall of the raw material tank (6); The bottom of the lower rotating circular plate (24) is frictionally abutted against the bottom of the lifting cylinder (23); the bottom of the upper rotating circular plate (27) is evenly distributed along the circumferential direction with a plurality of upper accommodating tubes (26) vertically penetrating therethrough; the upper ports of the upper accommodating tubes (26) are flush with the top of the upper rotating circular plate (27); the top of the lower rotating circular plate (24) is evenly distributed along the circumferential direction with a plurality of lower accommodating tubes (25) vertically penetrating therethrough; the lower ports of the plurality of upper accommodating tubes (26) are flush with the bottom of the lower rotating circular plate (24); the lower ports of the plurality of upper accommodating tubes (26) are extended correspondingly. The upper end of the raw material tank (6) extends into the upper ports of the plurality of lower accommodating tubes (25) and is slidably and sealedly connected to the lower accommodating tubes (25); a fixed column (34) is coaxially fixedly connected to the bottom of the upper rotating circular plate (27); a fixed tube (35) is coaxially fixedly connected to the top of the lower rotating circular plate (24); the bottom end of the fixed column (34) extends downward into the fixed tube (35) and is vertically slidably connected to the fixed tube (35); a driving shaft (32) is coaxially provided at the inner top of the raw material tank (6) and the bottom end of the driving shaft (32) passes downward through the fixed circular plate (28) and is slidably connected to the upper rotating circular plate (27). The driving shaft (32) is fixedly connected to the fixed circular plate (28) in a rotatable and sealed manner. The bottoms of the fixed circular plate (28) and the lifting cylinder (23) are respectively provided with a leakage groove (33) and a discharge groove (37) vertically penetrating therethrough. The diameters of the leakage groove (33) and the discharge groove (37) correspond to the same inner diameters of the upper accommodating tube (26) and the lower accommodating tube (25). The leakage groove (33) and the discharge groove (37) are evenly distributed on both sides of the driving shaft (32) along the circumferential direction. The bottom of the lifting cylinder (23) is fixedly provided with a built-in discharge hopper (22) connected to the discharge groove (37).

2. The feeding system for potassium sulfate production according to claim 1, characterized in that: The built-in mixing assembly (10) comprises an upper rotating circular plate (14), a transition circular plate (13), a lower rotating circular plate (12) and a supporting circular plate (11) which are coaxially arranged in sequence from top to bottom. The top and bottom of the transition circular plate (13) are fixedly connected to the upper rotating circular plate (14) and the lower rotating circular plate (12) respectively. The upper rotating circular plate (14), the transition circular plate (13) and the lower rotating circular plate (12) are all rotatably sealed to the inner wall of the reactor body (3). The supporting circular plate (11) is fixedly connected to the inner wall of the reactor body (3). The top of the transition circular plate (13) is evenly distributed along the circumference with a plurality of vertically penetrating receiving grooves (18). The bottom of the receiving grooves (18) is truncated cone-shaped. The structure comprises a feeding hole (15) vertically penetrating the bottom of the upper rotating circular plate (14) at a position located in the receiving groove (18), a rotating shaft (41) coaxially arranged to rotate is arranged at a position located in the receiving groove (18), and a plurality of mixing blades (42) are evenly distributed on the outer wall of the rotating shaft (41) along the circumferential direction, a driving gear ring (40) is coaxially arranged to be fixed at the inner top of the reactor body (3), the top of the rotating shaft (41) passes through the upper rotating circular plate (14) upward and is fixedly connected to a driven gear (39) meshing with the driving gear ring (40), and a transmission shaft (16) is coaxially arranged to rotate is arranged at the inner top of the reactor body (3). The transmission shaft (16) is coaxially fixedly connected to the upper rotating circular plate (14); a plurality of vertically penetrating avoidance grooves (48) are evenly distributed on the top of the lower rotating circular plate (12) along the circumferential direction; one of the inner walls of the avoidance groove (48) is an arc-shaped structure; a sliding plate (47) is horizontally arranged in the avoidance groove (48) and is radially slidable along the lower rotating circular plate (12); one of the side walls of the sliding plate (47) is an arc-shaped structure; the opposite end of the sliding plate (47) is correspondingly and sealingly connected to the opposite inner wall of the avoidance groove (48); a guide arc-shaped plate (44) is coaxially fixedly connected to the top of the support circular plate (11); and a radially horizontally movable device is arranged on the top of the support circular plate (11); A sliding arc plate (43) is disposed, and the tops of the sliding arc plate (43) and the guide arc plate (44) are both provided with an arc groove (54). When the sliding arc plate (43) moves to abut against the guide arc plate (44), the sliding arc plate (43) and the guide arc plate (44) are assembled into a complete circular structure. A vertically arranged fixed arc plate (45) is fixedly disposed at the bottom of the sliding plate (47). The fixed arc plate (45) extends downward into the arc groove (54) and is in frictional contact with the inner wall of the arc groove (54). A vertically penetrating discharge hole (46) is disposed at the top of the supporting circular plate (11), and the inner diameter of the discharge hole (46) is larger than the diameter of the lower opening of the accommodating groove (18).

3. The feeding system for potassium sulfate production according to claim 2, characterized in that: The connecting component (4) comprises a fixed bracket (53) vertically fixedly arranged on the top of the reactor body (3); a transition hopper (52) is vertically fixedly arranged on the top of the fixed bracket (53) and is arranged to penetrate the reactor body (3); the top of the transition hopper (52) is sealed; a fixed discharge hopper (38) is fixedly arranged coaxially with the built-in discharge hopper (22) at the bottom of the raw material tank (6); the upper port of the fixed discharge hopper (38) extends upward through the raw material tank (6) to the inside; the fixed discharge hopper (38) is connected to the transition hopper (52) through the feed pipe (21); and the fixed bracket (53) is connected to the reactor body (3) and is arranged to pass through the feed pipe (21). A lifting plate (51) arranged to be lifted vertically is horizontally arranged in the frame (53); a lifting pipe (50) arranged to be vertically penetrated is fixedly arranged on the top of the lifting plate (51); a lower end of the transition bucket (52) extends into the lifting pipe (50) and is vertically slidably and hermetically connected to the lifting pipe (50); a lower end of the lifting pipe (50) penetrates downwardly through the reactor body (3) and is slidably and hermetically connected to the reactor body (3); the lifting pipe (50) and the discharge hole (46) are evenly distributed on both sides of the transmission shaft (16) along the circumferential direction; and an outer diameter of the lifting pipe (50) is smaller than a diameter of the feed hole (15).

4. The feeding system for potassium sulfate production according to claim 1, characterized in that: A control motor (20) is fixedly provided at the bottom of the reactor body (3); an output end of the control motor (20) passes through the reactor body (3) and is fixedly connected to a transmission rod (8).

5. The feeding system for potassium sulfate production according to claim 1, characterized in that: A servo motor (30) is fixedly provided on the top of the raw material tank (6), and an output end of the servo motor (30) passes through the raw material tank (6) and is fixedly connected to a drive shaft (32).

6. The feeding system for potassium sulfate production according to claim 1, characterized in that: Two vertically arranged lifting and telescopic cylinders (36) are fixedly inserted into the bottom of the raw material tank (6), and the telescopic ends of the lifting and telescopic cylinders (36) are fixedly connected to the lifting cylinder (23).

7. The feeding system for potassium sulfate production according to claim 2, characterized in that: A driving motor (17) is fixedly provided on the top of the reactor body (3); an output end of the driving motor (17) passes through the reactor body (3) and is fixedly connected to a transmission shaft (16).

8. The feeding system for potassium sulfate production according to claim 2, characterized in that: A horizontally arranged driving telescopic cylinder (49) is fixedly provided on the top of the supporting circular plate (11), and a telescopic end of the driving telescopic cylinder (49) is fixedly connected to the sliding arc plate (43).

9. The feeding system for potassium sulfate production according to claim 3, characterized in that: Two vertically arranged electrically controlled telescopic cylinders (55) are fixedly provided on the top of the reactor body (3); the telescopic ends of the electrically controlled telescopic cylinders (55) are fixedly connected to the lifting plate (51).

10. The feeding system for potassium sulfate production according to claim 1, characterized in that: The reactor body (3) is fixedly connected to the support base (1) via a plurality of support columns (2).

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