An industrialized α high-strength gypsum continuous production device

Abstract

The invention discloses an industrialized α high-strength gypsum continuous production device, which belongs to the field of industrialized production of α high-strength gypsum. The industrialized α high-strength gypsum continuous production device comprises a kettle body, a reducer is installed on the upper end of the kettle body, a frequency conversion motor is installed on the side end of the reducer, a feed port is embedded in the upper end of the kettle body, and the feed port is located on the right side of the reducer, a plurality of evenly distributed heating components are installed on the outer end of the kettle body, and a stirring shaft is inserted between the upper and lower inner walls of the kettle body. The device can realize continuous and synchronous feeding and discharging through a crystallization kettle in the original intermittent crystallization production, thereby expanding the process production capacity of α high-strength gypsum powder, reducing energy consumption, and increasing the stability and consistency of product quality. At the same time, the device can be applied to various gypsum raw materials including desulfurized gypsum, phosphogypsum, citric acid gypsum, and natural gypsum. The whole device has low energy consumption, low investment, high degree of automation, and is conducive to promotion.

Description

Technical Field

[0001] The present invention relates to the field of industrialized production of α high-strength gypsum, and more particularly to a continuous crystal conversion device in the industrialized production of α high-strength gypsum. Background Art

[0002] Gypsum is a new type of green, environmentally friendly and energy-saving material recognized worldwide. In particular, α high-strength gypsum has physical and chemical properties that are superior to cement and can be used as a substitute for cement products.

[0003] However, the current industrial production capacity of α high-strength gypsum powder by the liquid phase method is not high, and the biggest factor restricting the production capacity is that it cannot continuously and synchronously feed and discharge materials. Most of them generally adopt intermittent production, and the heating and cooling processes consume a lot of energy, the time intervals are long, and the stability and consistency are poor, which is not conducive to the expansion of production line capacity. Summary of the Invention

[0004] 1. Technical problems to be solved

[0005] In response to the problems existing in the prior art, the purpose of the present invention is to provide an industrialized continuous production device for α high-strength gypsum, which can realize continuous and synchronous feeding and discharging through a crystallization kettle in the original intermittent crystallization production, thereby expanding the process production capacity of α high-strength gypsum powder, reducing energy consumption, and increasing the stability and consistency of product quality. At the same time, it can be applied to various gypsum raw materials including desulfurized gypsum, phosphogypsum, citric acid gypsum, and natural gypsum. The entire device has low energy consumption, low investment, high degree of automation, and is conducive to promotion.

[0006] 2. Technical solution

[0007] To solve the above problems, the present invention adopts the following technical solutions.

[0008] An industrialized α high-strength gypsum continuous production device includes a kettle body, a reducer is installed on the upper end of the kettle body, a frequency conversion motor is installed on the side end of the reducer, a feed port is embedded in the upper end of the kettle body, the feed port is located on the right side of the reducer, a plurality of evenly distributed heating components are installed on the outer end of the kettle body, a stirring shaft is inserted between the upper and lower inner walls of the kettle body, the upper end of the stirring shaft is fixedly connected to the output end of the reducer, the outer end of the stirring shaft is fixedly connected with a first layer of stirring teeth, a second layer of stirring teeth and a third layer of stirring teeth, the second layer of stirring teeth is located on the lower side of the first layer of stirring teeth, the third layer of stirring teeth is located on the lower side of the second layer of stirring teeth, and the left and right inner walls of the kettle body are fixedly connected. A stirring shaft fixing bracket is fixedly connected, and the stirring shaft fixing bracket is located at the lower side of the three-layer stirring teeth and is rotatably connected to the lower end of the stirring shaft. A second discharge port is opened at the lower end of the kettle body, and the stirring shaft is fixedly connected with a first support plate and a second support plate. The first support plate is located at the lower side of the first layer of stirring teeth, and the second support plate is located at the lower side of the second layer of stirring teeth. A guide assembly and a second layer of guide plates are installed on the left and right inner walls of the kettle body, and the guide assembly is located between the first support plate and the upper and lower inner walls of the second layer of stirring teeth, and the second layer of guide plates are located between the second layer of support plate and the upper and lower inner walls of the three layers of stirring teeth. A diaphragm is fixedly connected between the first support plate and the second layer of support plate and the inner wall of the kettle body.

[0009] Furthermore, the diaphragm is made using the principle of a heart valve, the initial form of the diaphragm is a closed state, and the diaphragm is in an open and closed state when subjected to pressure changes.

[0010] Furthermore, a subsequent belt dehydrator is installed at the outer end of the second discharge port, a tube bundle dryer is installed at the outer end of the subsequent belt dehydrator, a grading screen is provided at the outer end of the tube bundle dryer, and a packaging machine is installed at the lower end of the grading screen.

[0011] Furthermore, the guide assembly includes a layer of guide plates installed on the left and right inner walls of the kettle body, a through hole is embedded in the end of the guide plate close to the support plate, a partition is fixedly connected between the inner walls of the guide plate, a spiral blade is installed between the partition and the inner wall of the guide plate, a first discharge port is opened at both ends of the upper end of the partition, a discharge hole is opened at the left end of the guide plate, and a vibration assembly is provided at the bottom end of the guide plate.

[0012] Furthermore, placement grooves are carved on the left and right inner walls of the kettle body, an electric rotating shaft is installed between the inner walls of the placement grooves, and the electric rotating shaft is fixedly connected to the right end of a layer of guide plate.

[0013] Furthermore, the vibration component includes a placement groove opened at the bottom end of a guide plate, an electromagnetic vibrator is installed at the bottom end of the placement groove, a vibration plate is slidably connected between the inner walls of the placement groove, a plurality of evenly distributed springs are fixedly connected between the vibration plate and the inner wall of the electromagnetic vibrator, an electromagnetic coil is installed inside the electromagnetic vibrator, and an electromagnet is embedded inside the vibration plate.

[0014] Furthermore, the heating assembly includes a jacket and a companion pipe, the companion pipe is inserted into the interior of the kettle body, a three-layer steam heater is provided at the outer end of the companion pipe, and a PLC control switch is provided inside the steam heater.

[0015] Furthermore, the interior of the kettle body is divided into three layers, and each layer of the three-layer kettle body corresponds to the three-layer steam heater.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] This solution can achieve continuous and synchronous feeding and discharging of materials in the original intermittent crystallization production through a crystallization kettle, thereby expanding the process production capacity of α high-strength gypsum powder, reducing energy consumption, and increasing the stability and consistency of product quality. At the same time, it can be applied to various gypsum raw materials including desulfurized gypsum, phosphogypsum, citric acid gypsum, and natural gypsum. The entire device has low energy consumption, low investment, and a high degree of automation, which is conducive to promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the present invention as a whole;

[0020] Figure 2 Schematic diagram of the structure of the flow guide assembly of the present invention;

[0021] Figure 3 For the present invention Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0022] Description of the numbers in the figure:

[0023] 1 kettle body, 2 reducer, 3 frequency conversion motor, 4 feeding port, 5 heating component, 6 stirring shaft, 7 first layer stirring teeth, 8 first layer supporting plate, 9 guide component, 91 first layer guiding plate, 92 through hole, 93 partition, 94 spiral blade, 95 first discharge port, 10 second layer stirring teeth, 11 second layer supporting plate, 12 second layer guiding plate, 13 third layer stirring teeth, 14 stirring shaft fixing bracket, 15 second discharge port, 16 diaphragm, 171 placement slot, 172 electromagnetic vibrator, 173 electromagnetic coil, 174 vibration plate, 175 electromagnet, 176 spring. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work shall fall within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention in specific circumstances.

[0027] Example:

[0028] See also Figure 1-3, an industrialized α high-strength gypsum continuous production device, including a kettle body 1, a reducer 2 is installed on the upper end of the kettle body 1, a frequency conversion motor 3 is installed on the side end of the reducer 2, a feed port 4 is embedded in the upper end of the kettle body 1, and the feed port 4 is located on the right side of the reducer 2. A plurality of evenly distributed heating components 5 are installed on the outer end of the kettle body 1, and a stirring shaft 6 is inserted between the upper and lower inner walls of the kettle body 1. The upper end of the stirring shaft 6 is fixedly connected to the output end of the reducer 2, and the outer end of the stirring shaft 6 is fixedly connected with a first layer of stirring teeth 7, a second layer of stirring teeth 10 and a third layer of stirring teeth 13. The second layer of stirring teeth 10 is located on the lower side of the first layer of stirring teeth 7, and the third layer of stirring teeth 13 is located on the lower side of the second layer of stirring teeth 10. A stirring shaft is fixedly connected between the left and right inner walls of the kettle body 1. The fixed bracket 14 and the stirring shaft fixed bracket 14 are located at the lower side of the three-layer stirring teeth 13 and are rotatably connected to the lower end of the stirring shaft 6. A second discharge port 15 is provided at the lower end of the kettle body 1. The stirring shaft 6 is fixedly connected with a first-layer support plate 8 and a second-layer support plate 11. The first-layer support plate 8 is located at the lower side of the first-layer stirring teeth 7, and the second-layer support plate 11 is located at the lower side of the second-layer stirring teeth 10. The left and right inner walls of the kettle body 1 are both installed with a guide assembly 9 and a second-layer guide plate 12. The guide assembly 9 is located between the first-layer support plate 8 and the upper and lower inner walls of the second-layer stirring teeth 10. The second-layer guide plate 12 is located between the second-layer support plate 11 and the upper and lower inner walls of the three-layer stirring teeth 13. The first-layer support plate 8 and the second-layer support plate 11 are both fixedly connected to the inner wall of the kettle body 1 with a diaphragm 16.

[0029] When using this solution, the operator adds the raw materials and water into the interior of the kettle body 1 through the feed port 4 by metering, and at the same time, the raw pulp and a certain proportion of the medium are transported into the interior of the kettle body 1 at the same time according to the concentration of 1200~1600. Moreover, the kettle body 1 is formed by the three-layer structure interval, and each layer of the kettle body 1 is equipped with a stirring device of a special structure to ensure the relative stratification of the materials, and the heating component 5 is controlled in three sections, which can adjust the reaction temperature of the three layers of materials according to the process requirements. Then the frequency conversion motor 3 drives the first layer stirring teeth 7, the second layer stirring teeth 10 and the second layer stirring teeth 11 through the reducer 2 and the stirring shaft 6. The three-layer stirring teeth 13 rotate, thereby completing the stirring function of the conveyed material, causing the conveyed material to undergo a dissolution and recrystallization process in the three layers from top to bottom of the kettle body 1, and successively form flocculent crystals, strip crystals, and short columnar crystals. Under the action of the first and second layer support plates 8 and 11 with special flow directions and gravity, the finished crystals gather at the bottom of the kettle body 1, and are finally sent to the subsequent belt dehydrator for dehydration through the second discharge port 15 using the pressure inside the kettle body 1. The dehydrated wet material is dried in a tube bundle dryer, and then sequentially undergoes classification and screening to remove impurities, mill modification, finished product storage in a finished product warehouse, and packaging by a packaging machine.

[0030] At the same time, the kettle body 1 in this solution can be expanded in volume and quantity according to the gypsum raw materials and production requirements to expand the production of the device, and the feeding and discharging can be carried out synchronously and continuously, providing continuity and stability of the system and reducing heat energy waste.

[0031] See also Figure 1 The diaphragm 16 is made of the principle of a heart valve. The initial state of the diaphragm 16 is a closed state, and the diaphragm 16 is in an open and closed state when the pressure changes.

[0032] When the present invention is used, the operator puts the proportioned material into the kettle body 1 through the feed port 4, and the material is stirred by the first layer of stirring teeth 7 in the first section and the second layer of stirring teeth 10 in the second section. As the heating component 5 heats the kettle body 1, the internal air pressure thereof gradually rises, and the extrusion force of the first layer of stirring teeth 7 and the second layer of stirring teeth 10 when stirring the material causes the material to gradually squeeze the diaphragm 16 attached to the first layer of support plate 8 and the inner wall of the kettle body 1, so that the diaphragm 16 is deformed by the pressure and presents an open and closed state, thereby promoting the stirred material to pass through the diaphragm 16. The membrane 16 is transported downward, thereby sliding down to above the guide component 9 and the second-layer guide plate 12. For the material above the guide component 9, the guide component 9 separates the material in its first interval, thereby greatly improving the efficiency of stirring and crystallization of the material in the second interval and the third interval. When the material is just being stirred and the heating component 5 is initially heating, the pressure value inside the kettle body 1 is not enough, and the diaphragm 16 is in a closed state, so that the material continues to be stirred in each interval until the diaphragm 16 is in an open and closed state to release the stirred material.

[0033] See also Figure 1 The outer end of the second discharge port 15 is equipped with a subsequent belt dehydrator, the outer end of the subsequent belt dehydrator is equipped with a tube bundle dryer, the outer end of the tube bundle dryer is provided with a grading screen, and the lower end of the grading screen is equipped with a packaging machine.

[0034] In this solution, a subsequent belt dehydrator, a tube bundle dryer, a grading screen and a packaging machine are installed below the second discharge port 15, so that when the material is stirred in the kettle body 1, the feeding and discharging can be carried out synchronously and continuously during the stirring process. The material undergoes a dissolution and recrystallization process to form flocculent crystals, strip crystals and short columnar crystals in sequence. After that, when the finished product crystals are formed and discharged outward at the second discharge port 15, the finished product crystals can pass through the subsequent belt dehydrator, tube bundle dryer, grading screen and packaging machine to realize the automatic and integrated operation of the gypsum raw material during production, which greatly reduces the labor of the operator and improves the overall work efficiency.

[0035] See also Figure 1-2The guide assembly 9 includes a layer of guide plates 91 installed on the left and right inner walls of the kettle body 1. A through hole 92 is embedded in one end of the guide plate 91 close to the support plate 8. A partition 93 is fixedly connected between the inner walls of the guide plate 91. A spiral blade 94 is installed between the partition 93 and the inner wall of the guide plate 91. A first discharge port 95 is opened at both ends of the upper end of the partition 93. A discharge hole is opened at the left end of the guide plate 91. A vibration assembly is provided at the bottom end of the guide plate 91.

[0036] When this solution is in use, when the material is released to the top of the guide component 9 after the stirring is completed in the layer of stirring teeth 7 in the first interval, the material penetrates into the interior of the layer of guide plate 91 through the through hole 92 on the surface thereof, and is continuously driven by the spiral blade 94 connected to the external power equipment, so that the stirred material is not easy to adhere to the surface of the guide component 9, resulting in slow diversion efficiency. At the same time, the stirred material is subjected to a certain centrifugal shaking work under the spiral transmission action of the spiral blade 94, which promotes the stratification of the material and discharges it outward from the first discharge port 95.

[0037] See also Figure 1-2 The left and right inner walls of the kettle body 1 are both provided with placement grooves, and an electric rotating shaft is installed between the inner walls of the placement grooves, and the electric rotating shaft is fixedly connected to the right end of a layer of guide plate 91.

[0038] When the present solution is in use, an external operator can electrically control the electric shaft to cause the electric shaft to drive the guide assembly 9 to move up and down as a whole, causing the angle between the guide assembly 9 and the inner wall of the kettle body 1 to change, thereby changing the position of the guide assembly 9 and the kettle body 1, adjusting the falling rate of the material when it is above the guide assembly 9, and also preventing the phenomenon of excessive accumulation of material above the guide assembly 9 and slow material discharge.

[0039] See also Figure 1-3 The vibration component includes a placement groove 171 opened at the bottom end of a guide plate 91, an electromagnetic vibrator 172 is installed at the bottom end of the placement groove 171, a vibration plate 174 is slidably connected between the inner walls of the placement groove 171, and a plurality of evenly distributed springs 176 are fixedly connected between the vibration plate 174 and the inner wall of the electromagnetic vibrator 172. An electromagnetic coil 173 is installed inside the electromagnetic vibrator 172, and an electromagnet 175 is embedded in the vibration plate 174.

[0040] During the use of this solution, when the material is discharged into the guide component 9 for transmission, in order to prevent the material from being discharged to the surface of the guide component 9 at a too fast rate and from being accumulated too much in the guide component 9, causing the transmission component of the guide component 9 to be blocked, this solution can realize that when the material is transmitted out of the guide component 9, the electromagnetic coil 173 in the internal electromagnetic vibrator 172 is energized, and the current passing through the electromagnetic coil 173 is a pulse current that has undergone half-wave rectification. When the electromagnetic coil 173 is in the positive half-wave, the current passes through, and the electromagnetic vibrator 172 has suction, attracting the vibration plate 174 to approach; and in the negative half-wave, no current passes, and the electromagnetic vibrator 172 has suction, attracting the vibration plate 174 to approach; The suction force of the vibrator 172 disappears, and due to the reset action of the spring 176, the vibration plate 174 returns to its original position, thereby causing the material inside the guide component 9 to vibrate continuously during the material discharge process under the influence of the vibration component, avoiding blockage caused by excessive accumulation of materials and causing the material to be stratified due to vibration during the downward transportation of the material. For example, the components with high density in the material can be located at the bottom more quickly under the vibration force, while the components with lower density will be distributed above the high density, so that the material under the layer can be stirred and mixed when it falls to the second and third intervals, and the crystallization efficiency can be more efficient.

[0041] See also Figure 1 The heating assembly 5 includes a jacket and a companion pipe. The companion pipe is inserted into the interior of the kettle body 1. A three-layer steam heater is provided at the outer end of the companion pipe. A PLC control switch is provided inside the steam heater.

[0042] When this solution is in use, when heating the material placed inside the kettle body 1, the operator controls the steam heater through the PLC control switch from the outside, thereby independently controlling the heating temperature of each layer to achieve more precise control of the material dissolution.

[0043] See also Figure 1 The internal interval of the kettle body 1 is set to three layers, and each layer of the three-layer kettle body 1 corresponds to the three-layer steam heater.

[0044] This solution sets up a working interval of three-layer spacing areas inside the kettle body 1, so that the material can form flocculent crystals, strip crystals, and short columnar crystals in the three-layer spacing areas in sequence. Under the stirring of special flow direction and the action of gravity, the finished crystals converge at the bottom of the crystal rotating kettle, reducing the time interval period required for their dissolution and improving the stability and consistency during production.

[0045] The above description is only a preferred specific embodiment of the present invention; however, the protection scope of the present invention is not limited thereto; any technician familiar with the technical field within the technical scope disclosed by the present invention; any equivalent replacement or change based on the technical solution and improved conception of the present invention shall be covered within the protection scope of the present invention.

Claims

1. An industrialized α high-strength gypsum continuous production device, comprising a kettle (1), characterized in that: A reducer (2) is installed at the upper end of the kettle body (1), and a variable frequency motor (3) is installed at the side end of the reducer (2). A feed port (4) is embedded at the upper end of the kettle body (1), and the feed port (4) is located on the right side of the reducer (2). A plurality of evenly distributed heating components (5) are installed at the outer end of the kettle body (1). A stirring shaft (6) is inserted between the upper and lower inner walls of the kettle body (1). The upper end of the stirring shaft (6) is fixedly connected to the output end of the reducer (2). The outer end of the stirring shaft (6) is fixedly connected to a first layer of stirring teeth (7), a second layer of stirring teeth (10) and a third layer of stirring teeth (13). The second layer of stirring teeth (11) is fixedly connected to the output end of the reducer (2). The stirring teeth (10) are located on the lower side of the first layer of stirring teeth (7), and the third layer of stirring teeth (13) are located on the lower side of the second layer of stirring teeth (10). A stirring shaft fixing bracket (14) is fixedly connected between the left and right inner walls of the kettle body (1). The stirring shaft fixing bracket (14) is located on the lower side of the third layer of stirring teeth (13) and is rotatably connected to the lower end of the stirring shaft (6). A second discharge port (15) is provided at the lower end of the kettle body (1). The stirring shaft (6) is fixedly connected to a first layer of supporting plate (8) and a second layer of supporting plate (11). The first layer of supporting plate (8) is located on the lower side of the first layer of stirring teeth (7), and the second layer of supporting plate (11) is located on the lower side of the second layer of stirring teeth (11). On the lower side of the second layer of stirring teeth (10), the left and right inner walls of the kettle body (1) are both installed with a guide assembly (9) and a second layer of guide plates (12), the guide assembly (9) is located between the first layer of support plate (8) and the upper and lower inner walls of the second layer of stirring teeth (10), the second layer of guide plates (12) is located between the second layer of support plate (11) and the upper and lower inner walls of the third layer of stirring teeth (13), and a diaphragm (16) is fixedly connected between the first layer of support plate (8) and the second layer of support plate (11) and the inner wall of the kettle body (1), the diaphragm (16) is made using the principle of a heart valve, the initial form of the diaphragm (16) is a closed state, and the diaphragm (16) is fixedly connected to the inner wall of the kettle body (1). The guide assembly (9) is in an open and closed state when subjected to pressure changes. The guide assembly (9) includes a layer of guide plates (91) installed on the left and right inner walls of the kettle body (1). A through hole (92) is embedded in one end of the guide plate (91) close to the support plate (8). A partition (93) is fixedly connected between the inner walls of the guide plate (91). A spiral blade (94) is installed between the partition (93) and the inner wall of the guide plate (91). A first discharge port (95) is drilled at both ends of the upper end of the partition (93). A discharge hole is drilled at the left end of the guide plate (91). A vibration assembly is provided at the inner bottom end of the guide plate (91).

2. The industrialized continuous production device for α-high-strength gypsum according to claim 1, characterized in that: A subsequent belt dehydrator is installed at the outer end of the second discharge port (15), a tube bundle dryer is installed at the outer end of the subsequent belt dehydrator, a grading screen is provided at the outer end of the tube bundle dryer, and a packaging machine is installed at the lower end of the grading screen.

3. The industrialized continuous production device for α-high-strength gypsum according to claim 1, characterized in that: The left and right inner walls of the kettle body (1) are both provided with placement grooves, and an electric rotating shaft is installed between the inner walls of the placement grooves. The electric rotating shaft is fixedly connected to the right end of a layer of guide plate (91).

4. The industrialized continuous production device for α-high-strength gypsum according to claim 3, characterized in that: The vibration assembly comprises a placement groove (171) opened at the inner bottom end of a guide plate (91), an electromagnetic vibrator (172) is installed at the inner bottom end of the placement groove (171), a vibration plate (174) is slidably connected between the inner walls of the placement groove (171), a plurality of evenly distributed springs (176) are fixedly connected between the vibration plate (174) and the inner wall of the electromagnetic vibrator (172), an electromagnetic coil (173) is installed inside the electromagnetic vibrator (172), and an electromagnet (175) is embedded inside the vibration plate (174).

5. The industrialized continuous production device for α-high-strength gypsum according to claim 1, characterized in that: The heating assembly (5) comprises a jacket and a companion pipe, the companion pipe is inserted into the interior of the kettle body (1), a three-layer steam heater is provided at the outer end of the companion pipe, and a PLC control switch is provided inside the steam heater.

6. The industrialized continuous production device for α-high-strength gypsum according to claim 1, characterized in that: The interior of the kettle body (1) is divided into three layers, and each layer of the three-layer kettle body (1) corresponds to the three-layer steam heater.

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