Gypsum whisker reaction kettle

Abstract

The utility model discloses a gypsum whisker reaction kettle which comprises an outer tank and an inner tank, the inner tank is nested in the outer tank, a heating cavity is formed between the outer tank and the inner tank, a spacer ring capable of moving up and down is sleeved in the heating cavity, the bottom end of the inner tank is communicated with a discharge pipe penetrating out of the outer tank downwards, and a tank cover is arranged at a top opening of the outer tank; a liquid inlet pipe vertically extending into the heating cavity is fixed to the top side of the tank cover. The reaction kettle has the beneficial effects that the height-adjustable spacer ring is arranged in the heating cavity, so that the position of the spacer ring can be correspondingly adjusted according to the height of a material filled in the inner tank, and the lower part of the spacer ring is used as a heat-conducting medium filling space, so that the heat of the heat-conducting medium can be more sufficiently transferred to the material in the reaction kettle, energy is saved, and the production cost is reduced. Empty burning of the inner wall of the upper part of the reaction kettle can be avoided, the reaction kettle can be protected, the reaction efficiency is improved, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the field of gypsum whisker production, in particular to a gypsum whisker reaction kettle. Background Art

[0002] Gypsum whiskers are fibrous single crystals of calcium sulfate, also known as gypsum fibers. They have many excellent physical and chemical properties, such as high strength, high modulus, high dielectric strength, wear resistance, high temperature resistance, corrosion resistance, good infrared reflectivity, easy surface treatment, and strong affinity with high molecular polymers. They can be used as reinforcing fillers, friction materials, asphalt modified materials, filter materials, and papermaking fillers. The production method of gypsum whiskers is to place them in a thermal container, stir and mix the raw materials under set temperature conditions, and the dihydrate gypsum recrystallizes into fine fibrous hemihydrate gypsum whiskers. After the reaction is completed, the hemihydrate gypsum whiskers are dehydrated and dried to produce gypsum whiskers. The commonly used thermal container is a reactor. Since the raw materials need to be heated during the production process, the current reactor is provided with a heating cavity on its outer wall to accommodate heating media such as heat transfer oil, and the heat transfer oil is circulated and heated to heat the materials in the reactor. However, since the capacity of the materials loaded in the reactor each time cannot be exactly the same, the heat transfer medium must be circulated through the inlet and outlet pipes. Usually, the heat transfer medium outlet pipe is set at the top of the heating cavity to ensure that the heat transfer medium can fill the heating cavity. However, when the materials in the reactor are not filled, the inner wall of the reactor at the upper empty position does not need to be heated, resulting in heat waste. Since the gypsum crystal transformation temperature is between 110 and 170°C, the existing heating structure of this type will also cause the upper position of the inner wall of the reactor to burn empty, which has poor practicality. Utility Model Content

[0003] The purpose of the utility model is to provide a gypsum whisker reactor in order to solve the above-mentioned problem. A height-adjustable spacer ring is arranged in the heating chamber, so that the position of the spacer ring can be adjusted according to the height of the filling material in the inner tank, so that the space below the spacer ring can be used as a heat-conducting medium filling space, thereby ensuring that the heat of the heat-conducting medium can be more fully transferred to the material in the reactor, avoiding the heat waste problem caused by the simultaneous heating of the upper cavity position when the reactor is not filled with materials, saving energy, and avoiding the empty burning of the upper inner wall of the reactor, which is helpful to protect the reactor and improve the reaction efficiency. The utility model has strong practicality, as described below.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The utility model provides a gypsum whisker reaction kettle, comprising an outer tank and an inner tank, wherein the inner tank is nested inside the outer tank, a heating chamber is formed between the outer tank and the inner tank, a spacer ring that can move up and down is sleeved in the heating chamber, a discharge pipe that passes downward through the outer tank is connected to the bottom end of the inner tank, and a tank cover is arranged at the top opening of the outer tank;

[0006] A liquid inlet pipe extending vertically into the heating chamber is fixed on the top side of the tank cover, a sliding hole for accommodating the liquid inlet pipe passing vertically is vertically arranged on the top side of the spacer ring, the sliding hole and the liquid inlet pipe are gap-matched, a liquid outlet pipe passing through the tank cover upward is arranged on the top side of the spacer ring, the bottom end of the liquid outlet pipe is flush with the bottom side of the spacer ring, and the liquid outlet pipe and the tank cover are gap-matched.

[0007] The above-mentioned gypsum whisker reactor is adopted, and the material supply pipeline is connected through the material guide pipe, and the gypsum whisker production material is transported downward along the stirring pipe into the inner tank through the material guide pipe, and the stirring pipe is driven to rotate by the driving gear of the driving motor, and then the material is discharged by the branch pipe of the stirring pipe and the material is stirred and mixed at the same time. The extension amount of the telescopic end of the cylinder is adjusted according to the change of the height of the filling material in the inner tank, so as to adjust the height of the synchronization ring, and the synchronization ring is used to drive the spacer ring and the liquid outlet pipe to move up and down, and the bottom side of the spacer ring is adjusted to be flush with the internal material height. At this time, the heat transfer medium is transported in and out of the heating chamber below the spacer ring through the liquid inlet pipe and the liquid outlet pipe, so as to realize the circulation heating operation corresponding to the material height.

[0008] Preferably, a stirring tube extending vertically into the inner tank is rotatably arranged in the middle of the tank cover, and a top frame is fixed on the top side of the tank cover, a synchronizing ring is fixed on the inner side of the top frame, and a material guide tube extending vertically to the inner side of the top end of the stirring tube is fixed in the center of the tank cover.

[0009] Preferably, the material guide tube and the stirring tube are rotatably matched via a sealed bearing, and a pull rod is fixed to the bottom of the synchronization ring, which vertically penetrates the tank cover and is gap-matched with the tank cover, and the bottom end of the pull rod is welded and fixed to the spacer ring.

[0010] Preferably, an adjusting cylinder supporting the synchronous ring to drive the spacer ring and the liquid outlet pipe to move up and down is fixed on the top side of the top frame, a fixing ring supporting the inner tank and the outer tank is coaxially fixed on the bottom side of the tank cover, and a driving motor is arranged above the tank cover.

[0011] Preferably, an adjusting cylinder supporting the synchronous ring to drive the spacer ring and the liquid outlet pipe to move up and down is fixed on the top side of the top frame, a fixing ring supporting the inner tank and the outer tank is coaxially fixed on the bottom side of the tank cover, and a driving motor is arranged above the tank cover.

[0012] Preferably, the frame is a C-shaped frame with its opening facing downward, the frame is fixed to the tank cover by welding, and the length of the liquid outlet pipe is greater than the telescopic stroke of the regulating cylinder.

[0013] Preferably, a rotating sleeve for accommodating the stirring tube to pass vertically is fixed on the top side of the frame, and a plurality of branch pipes are arranged around the outer circumference of the bottom end of the stirring tube, and the branch pipes are connected to the stirring tube.

[0014] Preferably, the bottom end of the branch pipe extends downwardly at an angle, and the outside of the branch pipe is densely covered with a plurality of groups of material distribution holes along its length direction.

[0015] The beneficial effect is that the utility model arranges a height-adjustable spacer ring in the heating chamber, thereby facilitating the adjustment of the spacer ring position according to the height of the material filled in the inner tank, so that the space below the spacer ring is used as a heat-conducting medium filling space, thereby ensuring that the heat of the heat-conducting medium can be more fully transferred to the material in the reactor, avoiding the problem of heat waste caused by simultaneous heating of the upper cavity position when the material has not filled the reactor, saving energy, and avoiding the empty burning of the upper inner wall of the reactor, which helps to protect the reactor, improve the reaction efficiency, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is the main structural diagram of the utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 3 It is a schematic diagram of the structural disassembly of the utility model;

[0020] Figure 4 It is a front sectional view of the utility model.

[0021] The following are the descriptions of the reference numerals:

[0022] 1. Outer tank; 2. Inner tank; 3. Heating chamber; 4. Spacer ring; 401. Sliding hole; 5. Liquid inlet pipe; 6. Liquid outlet pipe; 7. Top frame; 701. Adjusting cylinder; 702. Fixed block; 8. Synchronous ring; 801. Pull rod; 9. Stirring tube; 901. Transmission gear; 902. Branch pipe; 903. Material distribution hole; 10. Driving motor; 10a. Driving gear; 10b. Frame; 10c. Rotating sleeve; 11. Material guide pipe; 12. Discharge pipe; 13. Support foot; 14. Tank cover; 14a. Fixed ring. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0024] See also Figure 1-Figure 4 As shown, the utility model provides a gypsum whisker reactor, comprising an outer tank 1 and an inner tank 2, wherein the inner tank 2 is nested inside the outer tank 1, and a heating chamber 3 is formed between the outer tank 1 and the inner tank 2, wherein a spacer ring 4 which can move up and down is provided inside the heating chamber 3, and the spacer ring 4 is used to divide the heating chamber 3 into an upper and lower chamber, and the lower chamber is used as a heat-conducting medium filling space, and the bottom end of the inner tank 2 is connected to a discharge pipe 12 which passes downward through the outer tank 1, and a solenoid valve is provided in the middle of the discharge pipe 12 to control the material in the inner tank 2 to be discharged outward along the discharge pipe 12, and a tank cover 14 is provided at the top of the outer tank 1;

[0025] A liquid inlet pipe 5 is fixed on the top side of the tank cover 14 and extends vertically into the heating chamber 3. A sliding hole 401 is vertically arranged on the top side of the spacer ring 4 to accommodate the liquid inlet pipe 5 and pass through it vertically. The sliding hole 401 is clearance-matched with the liquid inlet pipe 5. A liquid outlet pipe 6 is arranged on the top side of the spacer ring 4 and passes through the tank cover 14 upward. The bottom end of the liquid outlet pipe 6 is flush with the bottom side of the spacer ring 4, and the liquid outlet pipe 6 and the tank cover 14 are clearance-matched.

[0026] As an optional embodiment, a stirring tube 9 is rotatably provided in the middle of the tank cover 14 and extends vertically into the inner tank 2, and a top frame 7 is fixed on the top side of the tank cover 14, a synchronizing ring 8 is fixed on the inner side of the top frame 7, a guide tube 11 is fixed in the center of the tank cover 14 and extends vertically to the inner side of the top of the stirring tube 9, the guide tube 11 and the stirring tube 9 are rotatably matched through a sealed bearing, and a pull rod 801 is fixed at the bottom of the synchronizing ring 8 and vertically penetrates the tank cover 14 and is gap-matched with the tank cover 14, and the bottom end of the pull rod 801 is welded and fixed to the spacer ring 4, so that the spacer ring 4 and the synchronizing ring 8 are connected by the pull rod 801;

[0027] An adjusting cylinder 701 is fixed on the top side of the top frame 7 to support the synchronous ring 8 and drive the spacer ring 4 and the liquid outlet pipe 6 to move up and down. A fixing ring 14a supporting the inner tank 2 and the outer tank 1 is coaxially fixed on the bottom side of the tank cover 14, and a driving motor 10 is arranged above the tank cover 14. A transmission gear 901 is coaxially fixed to the top of the stirring tube 9. A frame 10b is arranged on the outside of the driving motor 10. The frame 10b is fixed to the top side of the tank cover 14. A driving gear 10a meshing with the transmission gear 901 is fixed at the output end of the driving motor 10. The frame 10b is a C-shaped frame with an opening facing downward. The frame 10b is fixed to the tank cover 14 by welding. The length of the liquid outlet pipe 6 is greater than the telescopic stroke of the adjusting cylinder 701, ensuring that the adjusting cylinder 701 can drive the spacer ring 4 and the liquid outlet pipe 6 to move up and down to adjust the height position;

[0028] A rotating sleeve 10c is fixed on the top side of the frame 10b, which accommodates the stirring tube 9 and passes through it vertically. A plurality of branch pipes 902 are arranged around the outer circumference of the bottom end of the stirring tube 9. The branch pipes 902 are connected to the stirring tube 9. The bottom ends of the branch pipes 902 extend downward at an angle, and the outside of the branch pipes 902 are densely covered with a plurality of groups of distribution holes 903 along their length directions. The stirring tube 9 connected to the material guide tube 11 and the branch pipes 902 are used as a stirring structure and a material input structure, so that the distribution is more uniform and the mixing efficiency is higher.

[0029] With the above structure, the material supply pipeline is connected through the material guide pipe 11, and the gypsum whisker production material is transported downward along the stirring pipe 9 into the inner tank 2 through the material guide pipe 11, and the stirring pipe 9 is driven to rotate by the driving gear 10a of the driving motor 10, and then the material is transported out by the branch pipe 902 of the stirring pipe 9 and stirred and mixed at the same time, and the extension amount of the telescopic end of the cylinder 701 is adjusted according to the height change of the filling material in the inner tank 2, so as to adjust the height of the synchronization ring 8, and the synchronization ring 8 is used to drive the spacer ring 4 and the liquid outlet pipe 6 to move up and down, and the bottom side of the spacer ring 4 is adjusted to be flush with the internal material height. At this time, the heat transfer medium is transported in and out of the heating chamber 3 below the spacer ring 4 through the liquid inlet pipe 5 and the liquid outlet pipe 6, so as to realize the circulation heating operation corresponding to the material height;

[0030] By arranging a height-adjustable spacer ring 4 in the heating chamber 3, it is convenient to adjust the position of the spacer ring 4 according to the height of the filling material in the inner tank 2, so that the space below the spacer ring 4 can be used as a heat-conducting medium filling space, thereby ensuring that the heat of the heat-conducting medium can be more fully transferred to the material in the reactor, avoiding the problem of heat waste caused by simultaneous heating of the upper cavity position when the reactor is not filled with materials, saving energy, and avoiding the upper inner wall of the reactor from burning empty, which is helpful to protect the reactor, improve reaction efficiency, and has strong practicality.

[0031] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A gypsum whisker reactor, characterized in that: It comprises an outer tank (1) and an inner tank (2), wherein the inner tank (2) is nested inside the outer tank (1), a heating chamber (3) is formed between the outer tank (1) and the inner tank (2), a spacer ring (4) which can move up and down is sleeved inside the heating chamber (3), the bottom end of the inner tank (2) is connected to a discharge pipe (12) which passes downward out of the outer tank (1), and a tank cover (14) is arranged at the top of the outer tank (1); A liquid inlet pipe (5) extending vertically into the heating chamber (3) is fixed on the top side of the tank cover (14); a sliding hole (401) for accommodating the liquid inlet pipe (5) passing vertically therethrough is vertically arranged on the top side of the spacer ring (4); the sliding hole (401) and the liquid inlet pipe (5) are loosely matched; a liquid outlet pipe (6) passing upward through the tank cover (14) is arranged on the top side of the spacer ring (4); the bottom end of the liquid outlet pipe (6) is flush with the bottom side of the spacer ring (4), and the liquid outlet pipe (6) and the tank cover (14) are loosely matched.

2. A gypsum whisker reaction kettle according to claim 1, characterized in that: A stirring tube (9) is rotatably arranged in the middle of the tank cover (14) and extends vertically into the inner tank (2), and a top frame (7) is fixed on the top side of the tank cover (14), a synchronizing ring (8) is fixed on the inner side of the top frame (7), and a material guide tube (11) is fixed at the center of the tank cover (14) and extends vertically to the inner side of the top end of the stirring tube (9).

3. A gypsum whisker reaction kettle according to claim 2, characterized in that: The guide tube (11) and the stirring tube (9) are rotatably matched via a sealed bearing, and a pull rod (801) is fixed at the bottom of the synchronization ring (8) and vertically penetrates the tank cover (14) and is loosely matched with the tank cover (14), and the bottom end of the pull rod (801) is welded and fixed to the spacer ring (4).

4. A gypsum whisker reaction kettle according to claim 3, characterized in that: An adjusting cylinder (701) is fixed on the top side of the top frame (7) for supporting the synchronizing ring (8) and driving the spacer ring (4) and the liquid outlet pipe (6) to move up and down. A fixing ring (14a) is coaxially fixed on the bottom side of the tank cover (14) for supporting the inner tank (2) and the outer tank (1), and a driving motor (10) is arranged above the tank cover (14).

5. A gypsum whisker reaction kettle according to claim 4, characterized in that: A transmission gear (901) is coaxially fixed to the top of the stirring tube (9), a frame (10b) is arranged outside the driving motor (10), the frame (10b) is fixed to the top side of the tank cover (14), and a driving gear (10a) meshing with the transmission gear (901) is fixed to the output end of the driving motor (10).

6. A gypsum whisker reaction kettle according to claim 5, characterized in that: The frame (10b) is a C-shaped frame with its opening facing downwards. The frame (10b) is fixed to the tank cover (14) by welding. The length of the liquid outlet pipe (6) is greater than the telescopic stroke of the regulating cylinder (701).

7. A gypsum whisker reaction kettle according to claim 6, characterized in that: A rotating sleeve (10c) is fixed on the top side of the frame (10b) to accommodate the stirring tube (9) and vertically penetrate the stirring tube. A plurality of branch tubes (902) are arranged around the outer circumference of the bottom end of the stirring tube (9), and the branch tubes (902) are connected to the stirring tube (9).

8. A gypsum whisker reaction kettle according to claim 7, characterized in that: The bottom end of the branch pipe (902) extends downwardly at an angle, and the outside of the branch pipe (902) is densely covered with a plurality of groups of material distribution holes (903) along its length direction.

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