Device for producing II-type anhydrous gypsum by using dihydrate gypsum

Abstract

The utility model relates to the field of cooling kilns, and particularly provides a device for producing II-type anhydrous gypsum by using dihydrate gypsum. The cooling kiln comprises a supporting frame and a cooling kiln main body, a shell cooling mechanism is installed on the outer side of the cooling kiln main body, in order to effectively improve cooling efficiency and protect the cooling kiln main body, the shell cooling mechanism is specially arranged on the outer side of the cooling kiln main body, and a refrigerator in the shell cooling mechanism is responsible for generating cold air. And then the turbofan enables cold air to firstly flow through the upper guide frame, then flow downwards along the gap between the sleeve shell and the cooling kiln main body, then pass through the lower guide frame and finally flow out to the outer side in the gap between the side plate and the cooling kiln main body, and the indirect cooling mode thoroughly replaces a traditional direct spraying mode. Damage possibly caused by the fact that cooling water is directly sprayed to the outer side of the cooling kiln body is effectively avoided, and therefore the service life of the cooling kiln body is remarkably prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the cooling kiln field especially utilizes the device of producing II type anhydrite with dihydrate gypsum. BACKGROUND

[0002] The cooling kiln device of II type anhydrite after calcination is the key equipment in the gypsum production line, it adopts the structure of inclined arrangement cylinder and rotary motion mode, carries out heat exchange through cooling medium and high temperature gypsum, realizes the quick, even cooling of gypsum, and the device has the characteristics such as high cooling efficiency, good cooling uniformity, strong equipment stability and simple operation, effectively improves the quality and production efficiency of gypsum product.

[0003] The present application inventors found that there are the following problems in the practical use process:

[0004] In the process of producing II type anhydrite, the II type anhydrite after calcination needs to be cooled in the cooling kiln, so that the II type anhydrite can be quickly cooled, but the existing cooling kiln does not set a mechanism for cooling the outer wall of the cooling kiln in use, and some products spray cooling liquid on the outer wall of the cooling kiln through a spraying mechanism, which has a problem, specifically, the direct contact of the cooling liquid with the outer cylinder can cause rapid oxidation of the outer cylinder, even cracking, reducing the cooling effect of the cooling kiln itself and the service life of the cooling kiln.

[0005] Therefore, it is necessary to provide a device for producing II type anhydrite with dihydrate gypsum to solve the above technical problems. CONTENT OF THE UTILITY MODEL

[0006] The technical problem to be solved by the utility model is to directly apply cooling liquid to the outer wall of the cooling kiln using a spraying mechanism, which can accelerate the oxidation of the outer cylinder and even cause cracking, thereby affecting the cooling effect and service life, and the device for producing II type anhydrite with dihydrate gypsum is provided to solve the above defects of the prior art.

[0007] To achieve the above purpose, the technical scheme of the utility model is: a device for producing II type anhydrite with dihydrate gypsum, comprising a support frame and a cooling kiln main body, an outer shell cooling mechanism is installed on the outer side of the cooling kiln main body, the outer shell cooling mechanism comprises a sleeve shell, an upper guide frame is fixedly welded on the upper side of the sleeve shell, a lower guide frame is fixedly welded on the lower side of the sleeve shell, two groups of side plates are fixedly welded on the upper side of the lower guide frame, a refrigerator is installed on the top of the upper guide frame, two groups of turbine fans are installed on the top of the refrigerator, the sleeve shell is sleeved on the outer side of the cooling kiln main body, and a gap is formed between the inner side of the sleeve shell and the outer surface of the cooling kiln main body.

[0008] By adopting the above technical scheme, the structural stability and operation reliability of the whole device are ensured, and meanwhile, the shell cooling mechanism installed outside the cooling kiln body, the gap between the shell and the outer surface of the cooling kiln body is designed, so that the cold air can circulate in the gap, effectively reducing the temperature of the cooling kiln body.

[0009] Further arrangement, the upper guide frame is connected with the inside of the lower guide frame through the gap between the shell and the cooling kiln body, for guiding the cold air.

[0010] By adopting the above technical scheme, the cold air can flow smoothly in the gap, and the cold air is effectively guided, which ensures that the cold air can uniformly cover the outer surface of the cooling kiln body, improving the uniformity and efficiency of cooling.

[0011] Further arrangement, the outer side of the cooling kiln body is provided with a plurality of groups of supporting rings, and the supporting ring and the supporting frame are provided with a roller frame, and the cooling kiln body is equally divided into several sections by the supporting rings.

[0012] By adopting the above technical scheme, the cooling kiln body can be divided into several sections, and each section can be independently supported and rotated, improving the structural strength and stability of the cooling kiln body, so that it can withstand greater load and more severe working environment.

[0013] Further arrangement, the lower guide frame is in a rectangular frame structure, and passes through the assembly gap between the supporting ring and the roller frame, and the side plate is in an arc plate structure and is arranged below the outer side of the adjacent section of the cooling kiln body covered by the shell.

[0014] By adopting the above technical scheme, the lower guide frame can closely fit on the outer side of the cooling kiln body, ensuring the sealing and flow of the cold air, and meanwhile, the side plate is in an arc plate structure and is arranged below the outer side of the adjacent section of the cooling kiln body covered by the shell.

[0015] Further arrangement, the outer side of the cooling kiln body is provided with a driving mechanism, and the driving mechanism comprises a driving motor, a speed reducer, a driving gear and a gear ring, and the gear ring is fixedly connected with the cooling kiln body.

[0016] By adopting the above technical scheme, the cooling kiln body can realize rotary motion under the driving of the driving mechanism, which not only makes the gypsum powder more uniformly distributed and cooled in the cooling kiln body, but also improves the cooling efficiency and product quality.

[0017] Further arrangement, one end of the cooling kiln body is provided with a spiral feeding cylinder, a feeding hopper is installed on one side of the top of the spiral feeding cylinder, a motor is installed at one end of the spiral feeding cylinder, the feeding hopper is connected with the discharge port of the calcining kiln through a feeding pipeline, and the other end of the cooling kiln body forms a discharge port.

[0018] By adopting the above technical scheme, the calcined gypsum powder can be continuously and stably fed into the cooling kiln body, the continuous feeding mode improves production efficiency and product quality, reduces loss and waste of materials in the conveying process, and meanwhile, the motor installed at one end of the spiral feeding cylinder provides power support for the feeding process, so that the feeding is smoother and more reliable.

[0019] Further arrangement, the motor, refrigerator, turbine fan are all electrically connected with external power supply through the controller.

[0020] By adopting the above technical scheme, the whole device can be more intelligent and automatic, and the controller can accurately control and adjust the motor, refrigerator and turbine fan according to production requirements and process parameters, thereby improving production efficiency and product quality.

[0021] Compared with the related art, the device for producing type II anhydrous gypsum from dihydrate gypsum has the following beneficial effects:

[0022] The device for producing type II anhydrous gypsum from dihydrate gypsum is characterized in that the shell cooling mechanism is specially arranged on the outside of the cooling kiln body to effectively improve the cooling efficiency and protect the cooling kiln body, the refrigerator in the mechanism is responsible for generating cold air, the turbine fan then blows the cold air into the gap between the sleeve shell and the cooling kiln body to form a closed cold air circulation path, the cold air first flows through the upper guide frame, then flows downward along the gap between the sleeve shell and the cooling kiln body, then passes through the lower guide frame, and finally flows out to the outside in the gap between the side plate and the cooling kiln body, the indirect cooling form completely replaces the traditional direct spraying mode, effectively avoids damage caused by direct spraying of cooling water to the outside of the cooling kiln body, and significantly improves the service life of the cooling kiln body.

[0023] The device for producing type II anhydrous gypsum from dihydrate gypsum is characterized in that the lower guide frame can be closely attached to the outside of the cooling kiln body, so that the cold air can smoothly flow in the gap between the sleeve shell, the lower guide frame and the cooling kiln body, and meanwhile, the side plate is in the form of an arc plate structure and is cleverly arranged below the outside of the adjacent section of the cooling kiln body sleeved by the sleeve shell, the arc plate structure further enhances the flow guiding effect of the cold air, so that the cold air can more uniformly cover the outer surface of the cooling kiln body and improve the cooling area, thereby improving the cooling efficiency and uniformity. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0025] Figure 2It is the front view structural schematic diagram of the utility model;

[0026] Figure 3 It is the three-dimensional structural schematic diagram of the shell cooling mechanism of the utility model;

[0027] Figure 4 It is the side view structural schematic diagram of the shell cooling mechanism of the utility model.

[0028] Marked number in the drawing: 1, support frame; 2, cooling kiln main body; 3, support ring; 4, roller frame; 5, driving mechanism; 6, shell cooling mechanism; 601, sleeve shell; 602, upper guide frame; 603, refrigerator; 604, turbine fan; 605, lower guide frame; 606, side plate; 7, spiral feeding cylinder; 8, feeding hopper; 9, motor; 10, discharge port. DETAILED DESCRIPTION

[0029] In order to facilitate understanding the utility model, the utility model will be described more fully below with reference to relevant drawings. The drawings show typical embodiments of the utility model. EMBODIMENT

[0030] As Figures 1-4 Indicated, the utility model discloses a device for producing type II anhydrite by using dihydrate gypsum, which comprises a support frame 1 and a cooling kiln main body 2. The outer side of the cooling kiln main body 2 is provided with a shell cooling mechanism 6. The shell cooling mechanism 6 comprises a sleeve shell 601. An upper guide frame 602 is fixedly welded to the top of the sleeve shell 601. A lower guide frame 605 is fixedly welded to the bottom of the sleeve shell 601. Two groups of side plates 606 are fixedly welded to the upper side of the lower guide frame 605. A refrigerator 603 is installed on the top of the upper guide frame 602. Two groups of turbine fans 604 are installed on the top of the refrigerator 603. The sleeve shell 601 is sleeved on the outer side of the cooling kiln main body 2. A gap is formed between the inner side of the sleeve shell 601 and the outer surface of the cooling kiln main body 2, which ensures the structural stability and operational reliability of the entire device. In addition, the gap between the sleeve shell 601 and the outer surface of the cooling kiln main body 2 is designed to enable cold air to circulate in the gap, effectively reducing the temperature of the cooling kiln main body 2, improving the cooling efficiency, and avoiding potential damage to the cooling kiln main body caused by direct spraying of cooling water.

[0031] As Figure 3 , Figure 4As shown, the upper guide frame 602 is connected with the inside of the lower guide frame 605 through the gap between the sleeve 601 and the cooling kiln body 2, and is used for guiding the cold air, so that the cold air can flow smoothly in the gap, and the cold air is effectively guided. This guiding mode ensures that the cold air can uniformly cover the outer surface of the cooling kiln body 2, improves the uniformity and efficiency of cooling, and simplifies the structure of the cooling system, reduces the energy loss in the cooling process, and makes the whole device more energy-saving and efficient.

[0032] As shown in Figure 1 , Figure 2 , a plurality of support rings 3 are arranged on the outer side of the cooling kiln body 2, and a roller frame 4 is arranged between the support ring 3 and the support frame 1. The plurality of support rings 3 divide the cooling kiln body 2 into several sections, so that the cooling kiln body 2 can be divided into several sections, and each section can be independently supported and rotated, improving the structural strength and stability of the cooling kiln body 2, so that it can withstand greater load and more severe working environment. At the same time, the equal division also makes the cooling kiln body 2 more evenly distribute gypsum powder during rotation, improving the cooling effect and product quality.

[0033] As shown in Figure 3 , Figure 4 , the lower guide frame 605 is in a rectangular frame structure, and passes through the assembly gap between the support ring 3 and the roller frame 4. The side plate 606 is in an arc plate structure and is arranged below the outer side of the adjacent section of the cooling kiln body 2 sleeved by the sleeve 601, so that the lower guide frame 605 can be closely attached to the outer side of the cooling kiln body 2, ensuring the sealing and flow of the cold air. At the same time, the side plate 606 is in an arc plate structure and is arranged below the outer side of the adjacent section of the cooling kiln body 2 sleeved by the sleeve 601, which further enhances the guiding effect of the cold air, so that the cold air can more uniformly cover the outer surface of the cooling kiln body 2, improving the cooling efficiency and uniformity.

[0034] As shown in Figure 1 Figure 2 , a driving mechanism 5 is arranged on the outer side of the cooling kiln body 2. The driving mechanism 5 includes a driving motor, a speed reducer, a driving gear and a gear ring. The gear ring is fixedly connected with the cooling kiln body 2, so that the cooling kiln body 2 can rotate under the driving of the driving mechanism. This rotating movement not only makes the gypsum powder more uniformly distributed and cooled in the cooling kiln body 2, but also improves the cooling efficiency and product quality. At the same time, the arrangement of the driving mechanism 5 also makes the whole device more automatic and intelligent, reducing the complexity and labor intensity of manual operation. Embodiment

[0035] As shown in Figure 1 , Figure 2As shown, one end of the cooling kiln body 2 is provided with a spiral feeding cylinder 7, the top side of the spiral feeding cylinder 7 is provided with a feeding hopper 8, one end of the spiral feeding cylinder 7 is provided with a motor 9, the feeding hopper 8 is connected with the calcination kiln discharge port through a conveying pipeline, the other end of the cooling kiln body 2 is formed with a discharge port 10, so that the calcined gypsum powder can be continuously and stably fed into the cooling kiln body 2, this continuous feeding mode improves the production efficiency and product quality, reduces the loss and waste of materials in the conveying process, at the same time, the motor 9 installed at one end of the spiral feeding cylinder 7 provides power support for the feeding process, so that the feeding is more smooth and reliable, in addition, the feeding hopper 8 is connected with the calcination kiln discharge port through a conveying pipeline, realizing the automation and continuity of the production process, the discharge port 10 at the other end of the cooling kiln body 2 facilitates the discharge and collection of the cooled gypsum powder.

[0036] As shown in Figure 1 , Figure 2 , Figure 3 The motor 9, the refrigerator 603 and the turbine fan 604 are electrically connected with the external power supply through the controller, so that the whole device can be more intelligent and automatic, the controller can accurately control and adjust the motor 9, the refrigerator 603 and the turbine fan 604 according to the production demand and process parameters, improving the production efficiency and product quality, at the same time, the design of electrical connection also makes the whole device more safe and reliable, reduces the complexity and risk of manual operation, in addition, the design also facilitates the maintenance and maintenance of the device, reduces the operation cost and maintenance difficulty.

[0037] In the implementation, the device is supported by the support frame 1, the cooling kiln body 2 is the core component for accommodating and cooling the calcined gypsum powder, on the outside of the cooling kiln body 2, the shell cooling mechanism 6 is arranged, the refrigerator 603 generates cold air, the turbine fan 604 blows the cold air into the gap between the sleeve 601 and the cooling kiln body 2, forming a cold air circulation, effectively reducing the temperature of the shell of the cooling kiln body 2, the cold air flows through the gap between the upper guide frame 602, the sleeve 601 and the cooling kiln body 2, the gap between the lower guide frame 605 and the cooling kiln body 2, and finally is discharged to the outside, this cooling form is used to replace the traditional direct spraying form, reducing the damage of the cooling water directly sprayed to the outside of the cooling kiln body 2 to the cooling kiln body 2, improving its service life, at the same time, the cooling kiln body 2 rotates through the cooperation of the several groups of support rings 3 and the roller frames 4, so that the gypsum powder is uniformly distributed and cooled in the kiln, the driving mechanism 5 provides power to drive the cooling kiln body 2 to rotate, the spiral feeding cylinder 7 and the feeding hopper 8 are responsible for continuously feeding the calcined gypsum powder into the cooling kiln body 2, and the cooled gypsum powder is discharged from the discharge port 10, the whole device controls the coordinated operation of each component through the controller, realizing the efficient and continuous cooling production process.

[0038] The practical application advantages of the technical scheme include but are not limited to the following points:

[0039] 1. The indirect cooling form of the shell cooling mechanism completely replaces the traditional direct spraying mode, and effectively avoids the damage caused by the direct spraying of cooling water to the outside of the cooling kiln body;

[0040] 2. The lower guide frame and the side plate further enhance the flow guiding effect of the cold air, so that the cold air can more uniformly cover the outer surface of the cooling kiln body and increase the cooling area.

[0041] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A device for producing anhydrous gypsum type II from dihydrate gypsum, characterized in that: Including support frame (1), cooling kiln body (2), the outer side of cooling kiln body (2) is installed with shell cooling mechanism (6), the shell cooling mechanism (6) includes sleeve shell (601), the upper side of sleeve shell (601) is fixedly welded with upper guide frame (602), and the lower side is welded with lower guide frame (605), the upper side of lower guide frame (605) is welded with two groups of side plates (606), the top of upper guide frame (602) is installed with refrigerator (603), the top of refrigerator (603) is installed with two groups of turbine fan (604), the sleeve shell (601) is set on the outer side of cooling kiln body (2), and the gap is formed between the inner side of sleeve shell (601) and the outer surface of cooling kiln body (2).

2. The device for producing Type II anhydrite from dihydrate gypsum according to claim 1, characterized in that, The upper guide frame (602) is communicated with the inside of lower guide frame (605) through the gap between sleeve shell (601) and cooling kiln body (2), for guiding the cold air.

3. The device for producing Type II anhydrite from dihydrate gypsum according to claim 1, characterized in that, The outer side of cooling kiln body (2) is provided with a plurality of groups of support rings (3), and the roller frame (4) is supported between the support ring (3) and the support frame (1), and a plurality of support rings (3) divide cooling kiln body (2) into several sections.

4. The device for producing Type II anhydrite from dihydrate gypsum according to claim 1, characterized in that, The lower guide frame (605) is a rectangular frame structure, and passes through the assembly gap between support ring (3) and roller frame (4), the side plate (606) is an arc plate structure, arranged on the outer side below the adjacent section of cooling kiln body (2) of sleeve shell (601).

5. The apparatus for producing Type II anhydrite from dihydrate gypsum according to claim 1, wherein The outer side of cooling kiln body (2) is provided with driving mechanism (5), driving mechanism (5) includes driving motor, speed reducer, driving gear, gear ring, gear ring and cooling kiln body (2) fixed connection.

6. The apparatus for producing Type II anhydrite from dihydrate gypsum according to claim 1, wherein One end of the cooling kiln body (2) is provided with a spiral feeding cylinder (7), the top of the spiral feeding cylinder (7) is installed on one side of the feeding hopper (8), the one end of the spiral feeding cylinder (7) is installed with motor (9), the feeding hopper (8) is communicated with the discharge port of the calcining kiln through the feeding pipe, the other end of the cooling kiln body (2) forms the discharge port (10).

7. The apparatus for producing Type II anhydrite from dihydrate gypsum according to claim 6, wherein The motor (9), refrigerator (603), turbine fan (604) are electrically connected with external power supply through controller.

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