Material homogenizing device for preparing ceramic particles from fly ash

Abstract

The utility model relates to the technical field of ceramsite preparation, and discloses a material homogenizing device for preparing ceramsite from fly ash, which is characterized by comprising a stirring part, a primary mixing part and three feeding parts, the three feeding parts are all connected to the preliminary mixing part and used for providing raw materials, the preliminary mixing part is connected to the stirring part and used for preliminarily mixing the materials, and the stirring part is used for mixing all the materials; the material supply part comprises a material bin, a material supplementing structure and a driving structure; the feeding structure is arranged in the stock bin and used for solving the problem of shortage of different raw materials during discharging, the driving structure is arranged on the stock bin and used for driving the feeding structure to move, the three raw materials including fly ash, polluted soil and sludge are put into the three feeding parts correspondingly, then the feeding structure is matched for material feeding, and when blockage occurs, the three feeding parts are matched with the feeding structure for feeding. The dredging material or the dredging liquid is put, driving is completed in cooperation with the driving structure, so that the material is physically damaged by the material supplementing structure, and the problem of blockage caused by the caked material is solved.

Description

Technical Field

[0001] The utility model relates to a ceramsite preparation technology, and more specifically to a material homogenizing device for preparing ceramsite from fly ash. Background Art

[0002] There are many toxic and harmful substances in the fly ash of garbage incineration, which can be roughly divided into the following three types: dissolved salt pollutants, heavy metal pollutants, dioxins and other organic pollutants: 1. The proportion of dissolved salt in fly ash can reach 22%, mainly chlorides such as CaCl2, NaCl, KCl, etc. High chlorides will increase the solubility of other pollutants; 2. The content of heavy metals in fly ash is generally high, with various forms and instability. If not treated, it will be affected by natural environments such as acid rain and leached into the external environment, causing harm to the environment. In addition, it will also be enriched in organisms through enrichment to generate more toxic harmful substances. Heavy metals can migrate and transform into organisms through water, atmosphere, food, etc.; 3. Dioxins have stable and lasting characteristics and can be dissolved in human fat. Once they enter the human body, they will cause damage to multiple organs and systems, indirectly leading to physiological carcinogenesis. In addition, dioxins will be concentrated in the food chain. The higher the proportion of animal food in the food chain, the greater the possibility of dioxin accumulation.

[0003] Fly ash from garbage incineration contains a variety of toxic substances. It cannot be piled up anywhere or simply disposed of in landfills. It needs to be detoxified before it can be disposed as regular garbage. Fly ash mainly contains SiO2, A12O3, CaO, Fe2O3 and other substances, which are similar to the composition of some building raw materials. Therefore, fly ash can be used as a resource to replace some building raw materials.

[0004] Preparation conditions of ceramsite

[0005] The preparation of ceramsite needs to meet two conditions:

[0006] 1. SiO2 and Al2O3 must be used as the main components, which can form the skeleton structure of expanded clay and increase the compressive strength.

[0007] 2. There must be gas-producing substances, mainly including hydrates, carbonates and alkaline metal oxides, among which alkali metal oxides can be used as solvents. The main components of fly ash, slag and red mud are SiO2 and Al2O3.

[0008] Resource Utilization of Fly Ash to Make Ceramsite

[0009] The CaO, SiO2, and Al2O3 contained in the fly ash from garbage incineration are similar to the chemical composition of clay, so ceramic products can be produced. At a temperature of 1000℃ to 1200℃, the fly ash begins to melt and become glassy under high temperature conditions, while heavy metals are wrapped in it, and the toxic and harmful organic pollutants in the fly ash are decomposed at high temperature, achieving the harmlessness and resource utilization of the fly ash.

[0010] In the existing technology, there are few methods of utilizing fly ash, contaminated soil, sludge and other wastes as raw materials for resource utilization. In addition, fly ash, contaminated soil and sludge may clump during feeding and mixing, causing equipment blockage. The existing equipment is not convenient for handling blockage problems, and it is not convenient to clear the blockage of raw materials. The pre-mixing of raw materials before mixing is not good enough, and the mixing efficiency is not high. Utility Model Content

[0011] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a material homogenizing device for making expanded clay from fly ash, which is used to overcome the above-mentioned defects in the prior art. The three raw materials of fly ash, contaminated soil and sludge that have been crushed are respectively placed in three feeding parts, and the materials are replenished in conjunction with a feeding structure. When blockage occurs, dredging materials or dredging liquids are added, and the driving structure is cooperated to complete the driving, so that the materials are physically destroyed by the feeding structure, reducing the blockage problem caused by material agglomeration, and cooperating with a preliminary mixing part to complete the mixing of the materials, thereby making the overall mixing of the materials more convenient and facilitating the subsequent production of expanded clay.

[0012] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a material homogenizing device for making ceramsite from fly ash, comprising a stirring section, a preliminary mixing section and three feeding sections; the three feeding sections are all connected to the preliminary mixing section for providing raw materials, the preliminary mixing section is connected to the stirring section for preliminarily mixing materials, and the stirring section is used to mix all materials; the feeding section comprises a silo, a feeding structure and a driving structure; the feeding structure is arranged in the silo for supplementing the shortage of different raw materials during feeding, the driving structure is arranged on the silo for driving the feeding structure to move, by respectively placing three raw materials of fly ash, contaminated soil and sludge into the three feeding sections, and then cooperating with the feeding structure to supplement the materials, and when blocked, adding dredging materials or dredging liquids, cooperating with the driving structure to complete the driving, so that the materials are physically destroyed by the feeding structure, reducing the blockage problem caused by material agglomeration, cooperating with the preliminary mixing section to complete the mixing of the materials, thereby making the overall mixing of the materials more convenient, and facilitating the subsequent production of ceramsite.

[0013] As a further improvement of the utility model, the preliminary mixing part includes three branch pipes, a main pipe and a spiral mixing disk; one end of the three branch pipes is connected to the main pipe, the other ends of the three branch pipes are connected to three feeding parts, and the spiral mixing disk is rotatably connected in the main pipe.

[0014] As a further improvement of the present invention, the feeding structure includes a supplementary bin, a hollow rod and a accommodating chamber; the accommodating chamber is opened in the supplementary bin, the hollow rod is connected to the supplementary bin, and is communicated with the accommodating chamber.

[0015] As a further improvement of the utility model, the stirring part includes a stirring cylinder, a rotating shaft, a stirring chamber and a stirring blade; the stirring chamber is opened in the stirring cylinder, the rotating shaft rotates in the stirring chamber, the stirring blade is fixedly connected to the rotating shaft, and the rotating shaft is fixedly connected to the spiral mixing disk.

[0016] As a further improvement of the utility model, the driving structure includes a cylinder and an opening and closing plate; the opening and closing plate is rotatably mounted on the silo, and the cylinder is fixedly connected to the opening and closing plate and is fixedly connected to the hollow rod.

[0017] As a further improvement of the utility model, the stirring blade includes a wall scraper and a reinforcement member; the wall scraper is fixedly connected to the rotating shaft, one end of the reinforcement member is connected to the rotating shaft, and the other end is fixedly connected to the wall scraper.

[0018] As a further improvement of the present invention, the stirring portion further comprises a partition cavity and a heating element; the partition cavity is opened in the stirring cylinder surrounding the stirring cavity, and the heating element is arranged in the partition cavity.

[0019] Beneficial effects of the utility model:

[0020] (1) The utility model respectively puts three kinds of raw materials, namely fly ash, contaminated soil and sludge, into three feeding parts, and then cooperates with the feeding structure to supplement the materials. When there is a blockage, unblocking materials or unblocking liquids are added, and the driving structure is cooperated to complete the driving, so that the materials are physically destroyed by the feeding structure, reducing the blockage problem caused by material agglomeration, and cooperating with the preliminary mixing part to complete the mixing of the materials, thereby making the overall mixing of the materials more convenient and facilitating the subsequent production of expanded clay. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a main structural schematic diagram of the utility model;

[0022] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0023] Figure 3 This utility model Figure 2 A schematic diagram of the enlarged structure at the middle rotating shaft;

[0024] Figure 4 This utility model Figure 2 An enlarged structural diagram of the middle silo;

[0025] Figure 5 This utility model Figure 2Enlarged structural diagram of the middle branch pipe.

[0026] Figure numerals: 1. stirring section; 11. stirring cylinder; 12. rotating shaft; 13. stirring chamber; 14. stirring blade; 141. scraper; 142. reinforcement; 15. partition chamber; 16. heating element; 2. preliminary mixing section; 21. branch pipe; 22. main pipe; 23. spiral mixing disk; 3. feeding section; 31. silo; 32. replenishing bin; 33. hollow rod; 34. cylinder; 35. accommodating chamber; 36. opening and closing plate. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The same parts are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "bottom surface" and "top surface", "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0028] Reference Figure 1-5 As shown, a material homogenizing device for making ceramsite from fly ash of the present embodiment comprises a stirring section 1, a preliminary mixing section 2 and three feeding sections 3; the three feeding sections 3 are all connected to the preliminary mixing section 2 for providing raw materials, the preliminary mixing section 2 is connected to the stirring section 1 for preliminarily mixing materials, and the stirring section 1 is used to mix all materials; the feeding section 3 comprises a silo 31, a feeding structure and a driving structure; the feeding structure is arranged in the silo 31 for supplementing the shortage of different raw materials during feeding, the driving structure is arranged on the silo 31 for driving the feeding structure to move, by respectively placing three kinds of raw materials, namely fly ash, contaminated soil and sludge, into the three feeding sections 3, and then cooperating with the feeding structure to supplement the materials, and when blocked, adding dredging materials or dredging liquids, cooperating with the driving structure to complete the driving, so that the materials are physically destroyed by the feeding structure, reducing the blockage problem caused by material agglomeration, cooperating with the preliminary mixing section 2 to complete the mixing of the materials, so that the overall mixing of the materials is more convenient, which is convenient for the subsequent production of ceramsite.

[0029] Reference Figure 1-5 As shown, the preliminary mixing section 2 includes three branch pipes 21, a main pipe 22 and a spiral mixing disk 23; one end of the three branch pipes 21 is connected to the main pipe 22, and the other ends of the three branch pipes 21 are connected to three feeding sections 3, and the spiral mixing disk 23 is rotatably connected in the main pipe 22.

[0030] Reference Figure 1-5 As shown, the feeding structure includes a supplementary bin 32 , a hollow rod 33 and a accommodating chamber 35 ; the accommodating chamber 35 is opened in the supplementary bin 32 , and the hollow rod 33 is connected to the supplementary bin 32 and communicates with the accommodating chamber 35 .

[0031] Reference Figure 1-5 As shown, the stirring part 1 includes a stirring cylinder 11, a rotating shaft 12, a stirring chamber 13 and a stirring blade 14; the stirring chamber 13 is opened in the stirring cylinder 11, the rotating shaft 12 rotates in the stirring chamber 13, the stirring blade 14 is fixedly connected to the rotating shaft 12, and the rotating shaft 12 is fixedly connected to the spiral mixing disk 23.

[0032] Reference Figure 1-5 As shown, the driving structure includes a cylinder 34 and an opening and closing plate 36 ; the opening and closing plate 36 is rotatably mounted on the silo 31 , and the cylinder 34 is fixedly connected to the opening and closing plate 36 and is fixedly connected to the hollow rod 33 .

[0033] Reference Figure 1-5 As shown, the stirring blade 14 includes a scraper 141 and a reinforcement 142 ; the scraper 141 is fixedly connected to the rotating shaft 12 , and one end of the reinforcement 142 is connected to the rotating shaft 12 , and the other end is fixedly connected to the scraper 141 .

[0034] Reference Figure 1-5 As shown, the stirring portion 1 further includes a partition cavity 15 and a heating element 16 ; the partition cavity 15 surrounds the stirring cavity 13 and is opened in the stirring tank 11 , and the heating element 16 is disposed in the partition cavity 15 .

[0035] Working principle: Figure 1-5 As shown,

[0036] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. A material homogenizing device for making ceramsite from fly ash, characterized in that: It comprises a stirring section (1), a preliminary mixing section (2) and three feeding sections (3); The three feeding parts (3) are all connected to the preliminary mixing part (2) for providing raw materials, the preliminary mixing part (2) is connected to the stirring part (1) for preliminary mixing of materials, and the stirring part (1) is used to mix all materials; The feeding part (3) comprises a material bin (31), a material replenishing structure and a driving structure; The feeding structure is arranged in the silo (31) to supplement the shortage of different raw materials when unloading, and the driving structure is arranged on the silo (31) to drive the feeding structure to move.

2. The material homogenizing device for preparing ceramsite from fly ash according to claim 1, characterized in that: The preliminary mixing section (2) comprises three branch pipes (21), a main pipe (22) and a spiral mixing disk (23); One end of each of the three branch pipes (21) is connected to the main pipe (22), the other ends of the three branch pipes (21) are connected to three feeding parts (3), and the spiral mixing disk (23) is rotatably connected in the main pipe (22).

3. The material homogenizing device for preparing ceramsite from fly ash according to claim 2, characterized in that: The feeding structure comprises a supplementary bin (32), a hollow rod (33) and a containing chamber (35); The accommodating chamber (35) is opened in the supplementing bin (32), and the hollow rod (33) is connected to the supplementing bin (32) and communicates with the accommodating chamber (35).

4. The material homogenizing device for preparing ceramsite from fly ash according to claim 2, characterized in that: The stirring part (1) comprises a stirring cylinder (11), a rotating shaft (12), a stirring chamber (13) and a stirring blade (14); The stirring chamber (13) is opened in the stirring cylinder (11), the rotating shaft (12) rotates in the stirring chamber (13), the stirring blade (14) is fixedly connected to the rotating shaft (12), and the rotating shaft (12) is fixedly connected to the spiral mixing disk (23).

5. The material homogenizing device for preparing ceramsite from fly ash according to claim 3, characterized in that: The driving structure comprises a cylinder (34) and an opening and closing plate (36); The opening and closing plate (36) is rotatably mounted on the silo (31), and the cylinder (34) is fixedly connected to the opening and closing plate (36) and is also fixedly connected to the hollow rod (33).

6. The material homogenizing device for preparing ceramsite from fly ash according to claim 4, characterized in that: The stirring blade (14) comprises a wall scraping member (141) and a reinforcing member (142); The wall scraping member (141) is fixedly connected to the rotating shaft (12); one end of the reinforcing member (142) is connected to the rotating shaft (12), and the other end is fixedly connected to the wall scraping member (141).

7. The material homogenizing device for preparing ceramsite from fly ash according to claim 4, characterized in that: The stirring portion (1) further comprises a spacer cavity (15) and a heating element (16); The partition cavity (15) is opened in the stirring tank (11) around the stirring cavity (13), and the heating element (16) is arranged in the partition cavity (15).

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