Raw material pretreatment uniform mixing device
Through the combination of vibrating screen, premixer and guide plate, coarse and fine materials are screened and premixed, the problems of uneven mixing and humidity in refractory brick production are solved, and higher mixing uniformity and yield are achieved.
Patent Information
- Application Number
- CN202422406785.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-30
AI Technical Summary
During the production process of existing refractory bricks, the raw materials are mixed unevenly, especially the existence of large pieces of materials affects the strength of refractory bricks and the humidity does not meet the standards.
Use a vibrating screen, premixer and lead plate to screen and premix coarse and fine materials, use a hemispherical disperser and mixing box stirring paddle to ensure uniform mixing, and adjust humidity through the kiln heat exchange air drying.
The mixing uniformity and yield of raw materials are improved, and the quality and pass rate of refractory bricks are improved.
Smart Images
Figure CN223147425U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of refractory brick production, in particular to a raw material pretreatment and mixing device. Background Art
[0002] In the production process of refractory bricks, the raw material pretreatment and mixing device is crucial because it directly affects the quality of refractory bricks. The main purpose of the raw material mixing device is to ensure that all raw materials are evenly mixed, thereby improving the qualified rate of refractory bricks.
[0003] In the actual production process, the existing device mixes by directly adding coarse and fine materials, but this often has problems of low mixing efficiency and uneven mixing. In particular, there is a possibility that large pieces of materials enter the raw materials, which will increase the internal stress of the refractory bricks during the subsequent sintering process, thereby reducing their strength and not meeting the use standards. Summary of the Utility Model
[0004] According to the above deficiencies in the prior art, the purpose of the present utility model is to provide a raw material pretreatment and mixing device. By the combined use of a vibrating screen, a premixer, and a guide plate, the raw materials are pre-screened to remove the mixed large-particle raw materials. The coarse and fine raw materials can be dispersed and dropped onto a hemispherical disperser through the guide plate together, and then dispersed into the mixing box, greatly improving the mixing uniformity of the raw materials. Through the setting of the kiln furnace heat exchange air inlet pipe, using the waste heat of the kiln furnace, the raw materials with high humidity are purged to meet the discharge standards, improving the yield of the product.
[0005] The present utility model is implemented by adopting the following technical solutions:
[0006] The raw material pretreatment and mixing device includes a mixing box and a vibrating screen. A premixer is provided on the mixing box. The vibrating screen is connected to the mixing box through the premixer. The mixing box is connected to a moisture adjustment box through a humidifying box. A kiln furnace heat exchange air inlet pipe is connected to the moisture adjustment box.
[0007] After the large-particle materials screened out by the vibrating screen are collected, they are returned to the crushing device for further processing. The humidifying box is used for pre-humidifying the powder materials, providing favorable conditions for subsequent mixing, so it cannot add too much water. When the moisture adjustment box is operating, it will be in a rotating state. Only when the measured moisture content in the raw materials is too high, it will be dried through the kiln furnace heat exchange air inlet pipe.
[0008] The premixer is provided with a coarse material inlet and a fine material inlet. A screen mesh is provided inside the vibrating screen. The vibrating screen is connected to the coarse material inlet through a pipe.
[0009] The inside of the premixer is alternately provided with guide plates, and the guide plates are arranged obliquely downward.
[0010] There are multiple material guiding plates, which are respectively arranged on both sides of the inner wall of the premixer in a staggered manner.
[0011] The material guiding plates are provided with triangular dispersers distributed in a staggered manner, and a hemispherical disperser is arranged inside the mixing box, and the hemispherical disperser is located directly below the premixer.
[0012] A mixing box stirring paddle is arranged inside the mixing box, a humidifying box stirring paddle is arranged inside the humidifying box, and a fine material inlet pipe is connected to the fine material inlet.
[0013] A spray tray is arranged inside the humidifying box, and the spray tray is located above the humidifying box stirring paddle.
[0014] The working principle of the present utility model is as follows:
[0015] After the coarse material is screened by the screen inside the vibrating screen, it falls into the coarse material inlet. The fine material enters the premixer through the fine material inlet. The coarse and fine materials are pre-mixed at the material guiding plates and the hemispherical disperser, and then enter the mixing box, and the mixing box stirring paddle starts to work; after mixing is completed, the raw materials enter the humidifying box, the spray tray and the humidifying box stirring paddle start to work, and then enter the moisture adjustment box for treatment. Among them, when the moisture adjustment box is running, it will be in a rotating state, and only when it is measured that the moisture content in the raw materials is too high, will it be dried by blowing hot air from the kiln furnace into the pipeline.
[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0017] By using the raw material pretreatment and mixing device of the present utility model, through the coordinated use of the vibrating screen, premixer and material guiding plates, the raw materials are pre-screened in advance to remove the mixed large particle raw materials. The coarse and fine raw materials can be dispersed and fall onto the hemispherical disperser together through the material guiding plates, and then dispersed into the mixing box, greatly improving the mixing uniformity of the raw materials; through the setting of the pipeline for the hot air from the kiln furnace to enter, using the waste heat of the kiln furnace, the raw materials with high humidity are purged to make them meet the discharge standard, improving the yield rate of the product. Description of the Drawings
[0018] Figure 1 It is a schematic structural diagram of the raw material pretreatment and mixing device of the present utility model;
[0019] Figure 2 It is a top view of the material guiding plate of the present utility model;
[0020] Figure 3 It is a sectional view of the material guiding plate of the present utility model;
[0021] In the figure: 1. Mixing box; 2. Humidifying box; 3. Moisture regulating box; 4. Vibrating screen; 5. Screen; 6. Premixer; 7. Material guide plate; 8. Coarse material feed port; 9. Fine material feed port; 10. Hemispherical disperser; 11. Mixing box stirring paddle; 12. Humidifying box stirring paddle; 13. Spray plate; 14. Kiln heat exchange air inlet pipe; 15. Triangular disperser. DETAILED DESCRIPTION
[0022] In order to make the purpose and technical solution of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings.
[0023] Example 1
[0024] like Figure 1 As shown, the raw material pretreatment mixing device includes a mixing box 1 and a vibrating screen 4. The mixing box 1 is provided with a premixer 6. The vibrating screen 4 is connected to the mixing box 1 through the premixer 6. The mixing box 1 is connected to the moisture regulating box 3 through the humidifying box 2. The moisture regulating box 3 is connected to the kiln heat exchange air inlet pipe 14. Figures 2-3 As shown, the premixer 6 is provided with a coarse material feed port 8 and a fine material feed port 9, and a screen 5 is provided inside the vibrating screen 4, and the vibrating screen 4 is connected to the coarse material feed port 8 through a pipeline. The premixer 6 is provided with guide plates 7 in an alternating manner, and the guide plates 7 are arranged obliquely downward. There are three guide plates, which are arranged in an alternating manner on both sides of the inner wall of the premixer. The guide plates 7 are provided with triangular dispersers 15 that are staggered, and the mixing box 1 is provided with a hemispherical disperser 10, and the hemispherical disperser 10 is located directly below the premixer 6. The mixing box 1 is provided with a mixing box stirring paddle 11, and the humidifying box 2 is provided with a humidifying box stirring paddle 12, and the fine material feed port 9 is connected to a fine material inlet pipeline. The humidifying box 2 is provided with a spray plate 13, and the spray plate 13 is located above the humidifying box stirring paddle 12.
[0025] The raw material pretreatment mixing device, when in operation, comprises the following steps:
[0026] (1) After the coarse material is screened by the screen 5 in the vibrating screen 4, it falls into the coarse material feed port 8, and the fine material enters the premixer 6 through the fine material feed port 9. The coarse and fine materials are premixed at the guide plate 7 and the hemispherical disperser 10 inside the premixer 6, and then enter the mixing box 1, and the mixing box stirring paddle 11 starts to work; (2) After the mixing is completed, the raw materials enter the humidification box 2, the spray plate 13 and the humidification box stirring paddle 12 start to work, and then enter the moisture adjustment box 3 for processing.
Claims
1. A raw material pretreatment and mixing device, characterized in that, It includes a mixing tank (1) and a vibrating screen (4). A premixer (6) is provided on the mixing tank (1). The vibrating screen (4) is connected to the mixing tank (1) through the premixer (6). The mixing tank (1) is connected to a moisture adjustment tank (3) through a humidifying tank (2). A kiln furnace heat exchange air inlet pipe (14) is connected to the moisture adjustment tank (3).
2. The raw material pretreatment and mixing device according to claim 1, wherein The premixer (6) is provided with a coarse material inlet (8) and a fine material inlet (9). A screen (5) is arranged inside the vibrating screen (4). The vibrating screen (4) is connected to the coarse material inlet (8) through a pipe.
3. The raw material pretreatment and mixing device according to claim 1, wherein Guide plates (7) are staggeredly arranged inside the premixer (6), and the guide plates (7) are arranged obliquely downward.
4. The raw material pretreatment and mixing device according to claim 3, characterized in that Triangular dispersers (15) are staggeredly distributed on the guide plates (7). A hemispherical disperser (10) is arranged inside the mixing tank (1), and the hemispherical disperser (10) is located directly below the premixer (6).
5. The raw material pretreatment and mixing device according to claim 2, characterized in that, A mixing tank agitator paddle (11) is arranged inside the mixing tank (1). A humidifying tank agitator paddle (12) is arranged inside the humidifying tank (2). A fine material inlet pipe is connected to the fine material inlet (9).
6. The raw material pretreatment and mixing device according to claim 5, wherein, A spray disc (13) is arranged inside the humidifying tank (2), and the spray disc (13) is located above the humidifying tank agitator paddle (12).