Raw material crushing and batching system

Abstract

The utility model relates to the technical field of refractory brick production, in particular to a raw material crushing and batching system. The raw material crushing and batching system comprises a rolling type crusher, the rolling type crusher is connected with a humidifying and stirring box through a rolling filter, the humidifying and stirring box is connected with a batching box through a coarse material feeding box, a batching box stirring paddle driven by a driving motor is arranged in the batching box, and a stirring shaft is arranged between the driving motor and the batching box stirring paddle. An arch breaking chain is arranged on the stirring shaft and located in the coarse material feeding box. According to the system, quartz sand is humidified in advance through the humidification stirring box, the humidification time of the quartz sand is prolonged, and then the quartz sand enters the batching box to be mixed, so that the humidification uniformity of all raw materials is greatly improved, the deformation rate after firing is reduced, and the product percent of pass is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of refractory brick production, in particular to a raw material crushing and batching system. Background Art

[0002] Refractory bricks, also known as shaped refractory materials or simply "fire bricks," are made from refractory raw materials through batching, stamping, and firing. They are fire-resistant and high-temperature resistant bricks. They have the characteristics of high strength, low thermal expansion coefficient, corrosion resistance, good thermal stability, and high-temperature resistance.

[0003] In actual production, the raw materials for refractory bricks often include kaolin, quartz sand, and expanded clay. Existing equipment often mixes the raw materials before humidifying them. However, due to the different wettability of the raw materials (quartz sand has a much lower wettability than kaolin and expanded clay), the quartz sand may not have reached the required humidity by the time the kaolin has been humidified, leading to uneven humidification. This, in turn, increases the deformation rate of the bricks during the subsequent firing process, seriously affecting product quality. Utility Model Content

[0004] In view of the deficiencies in the above-mentioned prior art, the purpose of the present utility model is to provide a raw material crushing and batching system, in which the quartz sand is pre-humidified by a humidifying and mixing box to increase its humidification time, and then enters the batching box for mixing, which greatly improves the uniformity of the humidification of each raw material, reduces the deformation rate after firing, and greatly improves the product qualification rate; through the setting of the arch-breaking chain, when the raw material forms an arch, the stirring shaft drives the arch-breaking chain to rotate, breaks the arch, and then falls to the hemispherical disperser to mix with other raw materials and dispersed into the batching box, which greatly improves the mixing uniformity of the raw materials.

[0005] The utility model is realized by adopting the following technical solutions:

[0006] The raw material crushing and batching system includes a rolling mill, which is connected to a humidifying and mixing box through a rolling filter. The humidifying and mixing box is connected to a batching box through a coarse material feed box. A batching box stirring paddle driven by a drive motor is provided inside the batching box. A stirring shaft is provided between the drive motor and the batching box stirring paddle. A breaking arch chain is provided on the stirring shaft. The breaking arch chain is located inside the coarse material feed box.

[0007] A humidifying device is installed inside the batching box. The arch-breaking chain is made of metal. When the stirring shaft does not rotate, the arch-breaking chain naturally droops. When the stirring shaft rotates, the arch-breaking chain rotates by inertia.

[0008] A grinding wheel is arranged inside the grinding mill, a dust collector is arranged above the grinding mill, and an induced draft fan is connected to the dust collector.

[0009] The interior of the humidifying stirring box is provided with a stirring paddle driven by a stirring motor, and a spraying disk is provided above the stirring paddle.

[0010] A fine material feed box is provided outside the coarse material feed box, a baffle is provided inside the fine material feed box, and a first-level feeding port and a second-level feeding port are provided on the fine material feed box, which are respectively located on both sides of the baffle.

[0011] A coarse material feeding port is provided above the coarse material feeding box, and the humidifying and stirring box is connected to the coarse material feeding port through a pipeline.

[0012] An inclined guide plate is installed below the fine material feed box, and a hemispherical disperser is installed on the stirring shaft. The hemispherical disperser is located below the inclined guide plate. When the coarse and fine materials fall into the hemispherical disperser, they are dispersed by the rotating hemispherical disperser to the surrounding area of ​​the batching box and mixed by the mixing paddles of the batching box.

[0013] The working principle of this utility model is:

[0014] Quartz sand enters the grinding mill, where the grinding wheel, induced draft fan, and dust collector begin to pulverize the raw material. The material then passes through a roller filter and enters the humidifying and mixing tank. The stirring motor drives the stirring paddles and spray discs, and the raw material enters the coarse material feed box through the coarse material feed port. The drive motor starts to operate, and the stirring shaft drives the stirring paddles, arch-breaking chain, and hemispherical disperser in the batching tank to rotate. Other raw materials enter the fine material feed box through the primary or secondary feed port, and then fall through the inclined guide plate and hemispherical disperser into the batching tank for mixing. The batching tank is equipped with a humidifying device and a metal arch-breaking chain. When the stirring shaft is not rotating, the arch-breaking chain naturally droops. When the stirring shaft rotates, the arch-breaking chain rotates by inertia.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] By adopting the raw material crushing and batching system of the present invention, the quartz sand is pre-humidified through the humidifying and mixing box to increase its humidification time, and then enters the batching box for mixing, which greatly improves the uniformity of the humidification of the raw materials, reduces the deformation rate after firing, and greatly improves the product qualification rate; through the setting of the arch-breaking chain, when the raw material forms an arch, the stirring shaft drives the arch-breaking chain to rotate, breaks the arch, and then falls to the hemispherical disperser to mix with other raw materials and dispersed into the batching box, which greatly improves the mixing uniformity of the raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of the raw material crushing and batching system of the utility model;

[0018] Figure 2 This is a cross-sectional view of the coarse material feed box of the utility model;

[0019] In the figure: 1. Grinding mill; 2. Rolling filter; 3. Humidifying mixing box; 4. Batching box; 5. Grinding wheel; 6. Induced draft fan; 7. Dust collector; 8. Humidifying mixing box stirring paddle; 9. Stirring motor; 10. Spray plate; 11. Batching box stirring paddle; 12. Stirring shaft; 13. Drive motor; 14. Primary feeding port; 15. Secondary feeding port; 16. Coarse material feeding port; 17. Inclined guide plate; 18. Arch breaking chain; 19. Hemispherical disperser; 20. Coarse material feed box; 21. Baffle. DETAILED DESCRIPTION

[0020] In order to make the purpose and technical solution of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings.

[0021] Example 1

[0022] like Figure 1 As shown, the raw material grinding and batching system includes a mill 1, which is connected to a humidifying and mixing tank 3 via a rolling filter 2. The humidifying and mixing tank 3 is connected to a batching tank 4 via a coarse material feed box 20. A batching tank 4 is equipped with a mixing paddle 11 driven by a drive motor 13. A stirring shaft 12 is provided between the drive motor 13 and the mixing paddle 11. A breaker chain 18 is provided on the mixing shaft 12 and is located inside the coarse material feed box 20. A humidifying device is provided inside the batching tank 4. The breaker chain 18 is made of metal. When the mixing shaft 12 is not rotating, the breaker chain 18 naturally droops. When the mixing shaft 12 rotates, the breaker chain 18 rotates by inertia. A grinding wheel 5 is provided inside the mill 1, and a dust collector 7 is provided above the mill 1, connected to an induced draft fan 6. The interior of the humidifying stirring box 3 is provided with a humidifying stirring box stirring paddle 8 driven by a stirring motor 9, and a spray plate 10 is provided above the humidifying stirring box stirring paddle 8. Figure 2 As shown, a fine material feed box is installed outside the coarse material feed box 20, and a baffle 21 is installed inside the fine material feed box. The fine material feed box is provided with a primary feed port 14 and a secondary feed port 15, which are located on either side of the baffle 21. A coarse material feed port 16 is provided above the coarse material feed box 20, and the humidifying and stirring box 3 is connected to the coarse material feed port 16 via a pipe. An inclined guide plate 17 is provided below the fine material feed box, and a hemispherical disperser 19 is provided on the stirring shaft 12, and the hemispherical disperser 19 is located below the inclined guide plate 17.

[0023] The above raw material crushing and batching system, when in operation, comprises the following steps:

[0024] (1) The quartz sand raw material enters the grinding mill 1, and the grinding wheel 5, the induced draft fan 6 and the dust collector 7 start working to grind the raw material. Then, the raw material enters the humidifying and mixing box 3 through the rolling filter 2. The stirring motor 9 drives the stirring paddle 8 of the humidifying and mixing box to start rotating, and the spray plate 10 starts working; (2) After the processing in the humidifying and mixing box 3 is completed, the raw material enters the coarse material feed box 20 through the coarse material feed port 16, the drive motor 13 starts working, and the stirring shaft 12 drives the mixing box stirring paddle 11, the arch breaking chain 18 and the hemispherical disperser 19 to start rotating. Other raw materials enter the fine material feed box through the primary feed port 14 or the secondary feed port 15, and then fall into the mixing box through the inclined guide plate 17 and the hemispherical disperser 19 for mixing.

Claims

1. A raw material crushing and batching system, characterized in that: The invention comprises a milling mill (1), wherein the milling mill (1) is connected to a humidifying and stirring box (3) via a rolling filter (2), and the humidifying and stirring box (3) is connected to a batching box (4) via a coarse material feeding box (20). A batching box stirring paddle (11) driven by a driving motor (13) is provided inside the batching box (4), and a stirring shaft (12) is provided between the driving motor (13) and the batching box stirring paddle (11). A breaking arch chain (18) is provided on the stirring shaft (12), and the breaking arch chain (18) is located inside the coarse material feeding box (20).

2. The raw material crushing and batching system according to claim 1, characterized in that: A grinding wheel (5) is provided inside the grinding mill (1), a dust collector (7) is provided above the grinding mill (1), and an induced draft fan (6) is connected to the dust collector (7).

3. The raw material crushing and batching system according to claim 1, characterized in that: The interior of the humidifying stirring box (3) is provided with a humidifying stirring box stirring paddle (8) driven by a stirring motor (9), and a spraying disk (10) is provided above the humidifying stirring box stirring paddle (8).

4. The raw material crushing and batching system according to claim 1, characterized in that: A fine material feed box is provided outside the coarse material feed box (20), a baffle (21) is provided inside the fine material feed box, and a primary feeding port (14) and a secondary feeding port (15) are provided on the fine material feed box. The primary feeding port (14) and the secondary feeding port (15) are respectively located on both sides of the baffle (21).

5. The raw material crushing and batching system according to claim 1, characterized in that: A coarse material feeding port (16) is provided above the coarse material feeding box (20), and the humidifying and stirring box (3) is connected to the coarse material feeding port (16) through a pipeline.

6. The raw material crushing and batching system according to claim 4, characterized in that: An inclined material guide plate (17) is provided below the fine material feed box, and a hemispherical disperser (19) is provided on the stirring shaft (12). The hemispherical disperser (19) is located below the inclined material guide plate (17).

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