Byproduct gypsum aging and screening integrated device

Abstract

The embodiment of the utility model provides a byproduct gypsum aging and screening integrated device, and relates to the technical field of byproduct gypsum processing. The byproduct gypsum aging and screening integrated device comprises a roller body, a feeding screw and a water vapor channel are installed at one end of the roller body, materials enter the roller body through a feeding port formed in one side of the feeding screw, the materials are conveyed into the roller body through the feeding screw, and diluted water vapor enters the roller body through the water vapor channel to make contact with the materials. Materials are conveyed into the roller body through the feeding screw, water vapor generated after calcination is introduced through the water vapor channel, the water vapor is diluted and then introduced into the roller body to be in contact with the materials to achieve the purpose of rapid aging, and then the aged materials roll to the screen mesh to be screened through rotation of the roller body. The process of material aging and screening integration is achieved, then an AIII phase in gypsum clinker is rapidly converted into a semi-aqueous phase through rapid aging, and meanwhile particle impurities in a product are removed.

Description

Technical Field

[0001] The utility model relates to the technical field of by-product gypsum processing, in particular to an integrated device for aging and screening by-product gypsum. Background Art

[0002] As the domestic gypsum application market becomes more and more mature, there are higher requirements not only for product quality, but also for product stability. According to the requirements of downstream products of building gypsum powder, there are higher requirements for the three phases of gypsum after calcination and impurities in the product. Generally, the physical phase composition of freshly calcined gypsum is unstable, and there is basically no natural aging time under the existing production process. Therefore, it is necessary to add forced aging equipment to the process, and use the water vapor generated after calcination to force aging of the calcined product to ensure the stability of its product quality; other factors affecting product application include particulate impurities in the raw materials, which cannot be removed by calcination and need to be removed by screening to ensure the use of subsequent products.

[0003] Therefore, under the condition of ensuring product quality, it is necessary to combine the two functions into one device, which has greater advantages in production cost and space utilization than using two devices separately. In view of this, an integrated device for aging and screening of by-product gypsum is proposed to solve the above-mentioned problems of excessively high proportion of AⅢ phase after gypsum calcination and removal of particulate impurities in the product. Utility Model Content

[0004] The utility model aims to provide an integrated device for aging and screening by-product gypsum, which can solve the problem of excessively high proportion of AⅢ phase after calcining gypsum and remove particle impurities in the product.

[0005] The utility model provides an integrated device for aging and screening by-product gypsum, comprising a drum body, one end of which is equipped with a feed screw and a water vapor channel, materials enter from a feed port opened on one side of the feed screw, the materials are transported into the drum body by the feed screw, the diluted water vapor contacts the materials in the drum body through the water vapor channel, and the materials are aged, and a screen is arranged at the other end of the drum body, and the screen screens the aged materials.

[0006] In a specific embodiment, the end surface of the feed spiral shell is welded and fixed to the cylinder of the water vapor channel through a rib plate.

[0007] In a specific embodiment, a gap is provided between the cylinder of the water vapor channel and the cylinder of the drum, and the gap is sealed by a seal.

[0008] In a specific embodiment, two chambers are provided inside the drum body, the chamber located at the front end is the main aging chamber, and the chamber located at the rear end is the screening chamber. A discharge box is provided on the outside of the screening chamber, a discharge port is provided on the lower side of the discharge box, and the screen is located in the storage bin.

[0009] In a specific implementation, the front and rear ends of the discharge box are respectively provided with seal 2 and seal 3, and the seal 2 and seal 3 are used to prevent dust from being exposed.

[0010] In a specific embodiment, a material raising plate is provided inside the aging chamber, and the material raising plate allows the raised materials to fully contact with water vapor.

[0011] In a specific embodiment, a partition is provided between the aging chamber and the screening chamber, and a second lifting plate is provided inside the rear end of the aging chamber.

[0012] In a specific embodiment, a front wheel belt and a rear wheel belt are arranged on the drum body, and the front wheel belt and the rear wheel belt are respectively placed on symmetrical tugboats, and the tugboats are driven by a transmission device.

[0013] In a specific embodiment, an exhaust box is provided at the rear end of the drum body, and a seal member 4 is provided between the exhaust box and the drum body.

[0014] In a specific embodiment, a dust removal port is provided at the top of the exhaust box, and the dust removal port is connected to a dust collector. A slag discharge port is provided at the bottom of the exhaust box, and the slag discharge port is used to discharge unqualified materials after screening.

[0015] The utility model provides an integrated device for aging and screening of by-product gypsum, which is compared with the prior art:

[0016] The utility model conveys the material into the drum body through the feeding screw, and introduces the water vapor generated after calcination through the water vapor channel, and introduces the water vapor into the drum body after dilution to contact with the material to achieve the purpose of rapid aging, and then utilizes the rotation of the drum body to make the aged material roll to the screen for screening, thereby realizing the integrated process of material aging and screening, and then through rapid aging, the AⅢ phase in the gypsum clinker is quickly converted into a semi-aqueous phase, and at the same time, the particulate impurities in the product are removed to ensure the quality of the gypsum. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the following is a brief introduction to the drawings required for use in the implementation mode. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0019] Figure 2 The second schematic diagram of the overall structure of the embodiment of the utility model;

[0020] Figure 3 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0021] Figure 4 It is a partial cross-sectional schematic diagram of a drum body according to an embodiment of the utility model;

[0022] Figure 5 It is a schematic cross-sectional view of the discharge box structure of an embodiment of the utility model.

[0023] icon:

[0024] 1. Feed inlet; 2. Feed screw; 3. Water vapor channel; 4. Seal 1; 5. Drum body; 6. Lifting plate 1; 7. Front wheel belt; 8. Transmission device; 9. Lifting plate 2; 10. Seal 2; 11. Screen; 12. Discharge port; 13. Seal 3; 14. Rear wheel belt; 15. Seal 4; 16. Exhaust box; 17. Dust removal port; 18. Slag discharge port. DETAILED DESCRIPTION

[0025] As the domestic gypsum application market becomes more and more mature, there are higher requirements not only for product quality, but also for product stability. According to the requirements of downstream products of building gypsum powder, there are higher requirements for the three phases of gypsum after calcination and impurities in the product. Generally, the physical phase composition of freshly calcined gypsum is unstable, and there is basically no natural aging time under the existing production process. Therefore, it is necessary to add forced aging equipment to the process, and use the water vapor generated after calcination to force aging of the calcined product to ensure the stability of its product quality; other factors affecting product application include particulate impurities in the raw materials, which cannot be removed by calcination and need to be removed by screening to ensure the use of subsequent products. Therefore, after research, an integrated device for aging and screening of by-product gypsum is provided. When in use, the material is transported into the drum body through the feed screw, and the water vapor generated after calcination is introduced through the water vapor channel. The water vapor is diluted and introduced into the drum body to contact the material to achieve the purpose of rapid aging. Then, the rotation of the drum body is used to make the aged material roll to the screen for screening, thereby realizing the integrated process of material aging and screening, and then through rapid aging, the AⅢ phase in the gypsum clinker is quickly converted into a semi-aqueous phase, and the particulate impurities in the product are removed at the same time, thereby solving the above-mentioned defects.

[0026] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0027] Please refer to Figure 1-Figure 5 The embodiment of the utility model provides an integrated device for aging and screening by-product gypsum, including a drum body 5, one end of which is equipped with a feed screw 2 and a water vapor channel 3, the end surface of the shell of the feed screw 2 is welded and fixed to the body of the water vapor channel 3 through a rib plate, and a gap is provided between the body of the water vapor channel 3 and the drum body 5, and the gap is sealed by a seal 4.

[0028] The material enters from the feed port 1 opened on one side of the feed screw 2, and is transported to the drum body 5 by the feed screw 2. The diluted water vapor contacts the material in the drum body 5 through the water vapor channel 3, thereby promoting aging of the material.

[0029] Among them, two chambers are provided inside the drum body 5. The chamber located at the front end is the main aging chamber. A lifting plate 6 is provided inside the aging chamber. The lifting plate 6 allows the lifted material to fully contact with water vapor. Under the action of the lifting plate 6, the material is better in contact with water vapor for aging. The chamber located at the rear end is a screening chamber. A discharge box is provided on the outside of the screening chamber, and a discharge port 12 is opened on the lower side of the discharge box. A screen 11 is provided at the other end of the drum body 5. The screen 11 is located in the storage bin, and the screen 11 screens the aged material.

[0030] A partition is arranged between the aging chamber and the screening chamber, which acts as a material barrier so that the material forms a certain material layer thickness in the aging chamber. At the same time, a lifting plate 9 is arranged inside the rear end of the aging chamber, and the material is better in contact with water vapor for aging under the action of the lifting plate 9.

[0031] After being screened by the screen 11, the material is discharged from the mesh holes of the screen 11. After entering the discharge box, the material is output to the subsequent conveying equipment through the discharge port 12. The front and rear ends of the discharge box are respectively provided with seals 2 10 and seals 3 13, which are used to prevent dust from being exposed.

[0032] Furthermore, a front belt 7 and a rear belt 14 are provided on the drum body 5, and the front belt 7 and the rear belt 14 are respectively placed on symmetrical tugboats, which are driven by a transmission device 8, and the transmission device 8 is a motor. The rotation of the tugboat causes the front belt 7 and the rear belt 14 to rotate with the drum body 5, so that the material is screened.

[0033] In addition, an exhaust box 16 is provided at the rear end of the drum body 5, and a seal 15 is provided between the exhaust box 16 and the drum body 5. A dust removal port 17 is provided at the top of the exhaust box 16, and the dust removal port 17 is connected to the dust collector to ensure that the equipment operates in a negative pressure environment. A slag discharge port 18 is provided at the bottom of the exhaust box 16, and the slag discharge port 18 is used to discharge unqualified materials after screening.

[0034] In summary, the integrated device for aging and screening of by-product gypsum in an embodiment of the utility model has the following working principle: the material is transported into the drum body 5 through the feed screw 2, and the water vapor generated after calcination is introduced through the water vapor channel 3, and the water vapor is introduced into the drum body 5 after dilution to contact with the material to achieve the purpose of rapid aging, and then the rotation of the drum body 5 is utilized to make the aged material roll to the screen 11 for screening, thereby realizing the integrated process of material aging and screening.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An integrated device for aging and screening by-product gypsum, comprising a drum body (5), characterized in that: A feed screw (2) and a water vapor channel (3) are installed at one end of the drum body (5); the material enters through a feed port (1) opened on one side of the feed screw (2); the material is transported into the drum body (5) through the feed screw (2); the diluted water vapor contacts the material in the drum body (5) through the water vapor channel (3), thereby promoting aging of the material; a screen (11) is provided at the other end of the drum body (5); the screen (11) screens the aged material.

2. The integrated device for aging and screening of by-product gypsum according to claim 1, characterized in that: The end surface of the shell of the feed screw (2) is welded and fixed to the cylinder of the water vapor channel (3) via a rib plate.

3. The integrated device for aging and screening of by-product gypsum according to claim 2, characterized in that: A gap is provided between the cylinder of the water vapor channel (3) and the drum cylinder (5), and the gap is sealed by a sealing member (4).

4. The integrated device for aging and screening of by-product gypsum according to claim 1, characterized in that: The drum body (5) is provided with two chambers inside, the chamber located at the front end is the main aging chamber, and the chamber located at the rear end is the screening chamber. A discharge box is provided on the outside of the screening chamber, and a discharge port (12) is provided on the lower side of the discharge box. The screen (11) is located in the storage bin.

5. The integrated device for aging and screening of by-product gypsum according to claim 4, characterized in that: The front and rear ends of the discharge box are respectively provided with a second seal (10) and a third seal (13), and the second seal (10) and the third seal (13) are used to prevent dust from being exposed.

6. The integrated device for aging and screening of by-product gypsum according to claim 5, characterized in that: A material raising plate (6) is provided inside the aging chamber, and the material raising plate (6) allows the raised materials to fully contact with water vapor.

7. The integrated device for aging and screening of by-product gypsum according to claim 6, characterized in that: A partition is arranged between the aging chamber and the screening chamber, and a second material lifting plate (9) is arranged inside the rear end of the aging chamber.

8. The integrated device for aging and screening of by-product gypsum according to claim 1, characterized in that: The drum body (5) is provided with a front wheel belt (7) and a rear wheel belt (14), and the front wheel belt (7) and the rear wheel belt (14) are respectively placed on symmetrical tugboats, and the tugboats are driven by a transmission device (8).

9. The integrated device for aging and screening of by-product gypsum according to claim 8, characterized in that: An exhaust box (16) is provided at the rear end of the drum body (5), and a sealing member (15) is provided between the exhaust box (16) and the drum body (5).

10. The integrated device for aging and screening of by-product gypsum according to claim 9, characterized in that: The top of the exhaust box (16) is provided with a dust removal port (17), the dust removal port (17) is connected to a dust collector, and the bottom of the exhaust box (16) is provided with a slag discharge port (18), the slag discharge port (18) is used to discharge unqualified materials after screening.

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