Feeding device for ceramic sand preparation

Abstract

The utility model relates to the technical field of ceramic sand production equipment, in particular to a feeding device for ceramic sand preparation, which comprises a feeding hopper, a circular cover plate is fixed at the top of the feeding hopper, a plurality of horizontal feeding cylinders are uniformly fixed on the circular cover plate along the circumferential direction, and a first feeding screw is arranged in each feeding cylinder. Feeding paddles of the first feeding screw are spiral cutting blades, a feeding hopper is arranged at the end, away from the circle center of the circular cover plate, of the feeding barrel, the lower half portion of the feeding barrel is located in the feeding hopper, and screen holes are evenly distributed in the side wall, located in the feeding hopper, of the feeding barrel. The feeding hopper is reasonable in structure, various materials enter the feeding hopper after being crushed and screened, premixing can be carried out in the feeding hopper, the mixing efficiency is improved, the scraping rod is arranged in the feeding hopper, and the materials are prevented from being adhered to the inner wall of the feeding hopper; materials can be crushed in the feeding cylinder until the particle size meets the requirement, the proportion of all the materials is not affected, and the quality of final products is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of ceramic sand production equipment, and in particular relates to a feeding device for preparing ceramic sand. Background Art

[0002] Ceramic sand is a common building material, generally made of a mixture of various raw materials such as kaolin, quartz sand, feldspar and clay. The mixing process generally requires mixing raw materials such as kaolin, quartz sand, feldspar and clay in a certain proportion, and then screening to remove impurities and raw materials with too large particles. In the prior art, the process is generally mixed first and then screened, but this process not only affects the mixing effect due to the relatively large particle size, but also has a greater impact on the ratio of each material. It is impossible to accurately control the ratio between the raw materials, which affects the quality of ceramic sand. Therefore, a feeding device for ceramic sand preparation is needed to solve the above technical problems. Utility Model Content

[0003] In view of the above-mentioned defects in the prior art, the utility model provides a feeding device for preparing ceramic sand, comprising a feeding hopper, the feeding hopper is conical, a circular cover plate is fixed on the top of the feeding hopper, and a discharge pipe is provided at the bottom of the feeding hopper;

[0004] A plurality of horizontal feed barrels are evenly fixed on the circular cover plate along the circumference, and the plurality of feed barrels are radially distributed on the circular cover plate. A feed screw is arranged in the feed barrel, and the feed screw comprises a horizontal rotating shaft and a feed blade fixed on the horizontal rotating shaft. One end of the horizontal rotating shaft is extended out of the feed barrel and connected with a forward and reverse motor. The feed blade is a cutting blade spirally wound on the horizontal rotating shaft. A feed hopper is arranged at the end of the feed barrel away from the center of the circular cover plate. The lower half of the feed barrel is located in the feed hopper, and the side wall of the feed barrel located in the feed hopper is evenly covered with sieve holes. The raw materials required for making ceramic sand with good proportions are respectively put into different feed barrels. The forward and reverse motors on each feed barrel drive the corresponding feed screw to rotate forward and reverse periodically, and the materials are continuously crushed and evenly dispersed in the feed barrel. The crushed small particles (meeting the requirements for ceramic sand preparation) enter the feed hopper through the sieve holes, and are uniformly added to another ceramic sand preparation equipment (for example, a mixing tank) through the feed hopper. In the above process, the materials are continuously crushed and screened until all the materials meet the requirements without affecting the proportion of the materials.

[0005] Preferably, a vertical rotating shaft is provided in the feeding hopper, the vertical rotating shaft coincides with the central axis of the feeding hopper, the upper end of the vertical rotating shaft passes through the circular cover plate and is connected to a rotating motor, a scraping rod is fixed on the vertical rotating shaft in the feeding hopper, and the scraping rod contacts the inner wall of the feeding hopper. The scraping rod can preliminarily mix the materials falling on the inner wall of the feeding hopper and can prevent the materials from sticking to the inner wall of the feeding hopper, which is conducive to the unloading of the feeding hopper.

[0006] Preferably, a matching feeding screw rod 2 is provided in the discharge pipe, and the upper end of the feeding screw rod 2 is fixedly connected to the lower end of the vertical rotating shaft. The provision of the feeding screw rod 2 avoids the blockage of the discharge pipe, further plays a premixing effect on the materials, and further improves the discharge efficiency.

[0007] Preferably, the horizontal rotating shaft is provided with a plurality of cleaning brushes, which are sequentially arranged along the axial direction of the horizontal rotating shaft, and the bristles of the cleaning brushes cooperate with the inner wall of the feed barrel with sieve holes. The arrangement of the cleaning brushes can clean the sieve holes while the feeding screw rod 1 crushes and conveys the materials, thereby avoiding clogging of the sieve holes, improving the separation efficiency of qualified materials and unqualified materials in the feed barrel, and avoiding excessive crushing that affects the effect.

[0008] The utility model also includes other components that enable a feeding device for preparing ceramic sand to be used normally, such as a control component of a forward and reverse motor, a control component of a rotating motor, etc., which are conventional technical means in the field. In addition, the devices or components not limited in the utility model, such as a feeding screw rod, a cleaning brush, etc., all adopt conventional technical means and conventional equipment in the field.

[0009] The beneficial effects of the utility model are as follows: a variety of materials are first crushed and screened, and then enter the feeding hopper, where they can be premixed, thereby improving the mixing efficiency; a scraper rod is provided in the feeding hopper to prevent the materials from sticking to the inner wall of the feeding hopper; the materials can be crushed in the feeding barrel until the particle size meets the requirements, without affecting the ratio of the materials, thereby improving the quality of the final product. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0011] Figure 1 This is a schematic structural diagram of a feeding device for preparing ceramic sand in an embodiment of the utility model;

[0012] Figure 2 For Example 1 Figure 1 The view from the AA point in the middle;

[0013] Figure 3 For Example 2 Figure 1 The view from AA in the middle.

[0014] In the figure: 1. Feeding hopper; 2. Feeding barrel; 3. Feeding hopper; 4. Forward and reverse motor; 5. Rotating motor; 6. Cutting blade; 7. Scraper rod; 8. Vertical rotating shaft; 9. Screen hole; 10. Cleaning brush; 11. Feeding screw 2; 12. Discharge pipe. DETAILED DESCRIPTION

[0015] The present invention is described in detail below in conjunction with the drawings and specific embodiments in the embodiments of the present invention. The description here is only used to explain the present invention, but not to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work, any modifications, equivalent replacements, improvements, etc., should be included in the protection scope of the present invention.

[0016] Example 1

[0017] like Figure 1-2 As shown, the utility model provides a feeding device for preparing ceramic sand, comprising a feeding hopper 1, wherein the feeding hopper 1 is conical, a circular cover plate is fixed on the top of the feeding hopper 1, and a discharge pipe 12 is provided at the bottom of the feeding hopper 1;

[0018] A plurality of horizontal feeding barrels 2 are evenly fixed along the circumference of the circular cover plate, and the plurality of feeding barrels 2 are radially distributed on the circular cover plate. A feeding screw is provided in the feeding barrel 2, and the feeding screw comprises a horizontal rotating shaft and a feeding paddle fixed on the horizontal rotating shaft. One end of the horizontal rotating shaft extends out of the feeding barrel 2 and is connected to a forward and reverse motor 4. The feeding paddle is a cutting blade 6 spirally wound on the horizontal rotating shaft. A feeding hopper 3 is provided at the end of the feeding barrel 2 away from the center of the circular cover plate, and the lower half of the feeding barrel 2 is located in the feeding hopper 1. The side wall of the feeding barrel 2 located in the feeding hopper 1 is evenly covered with sieve holes 9.

[0019] A vertical rotating shaft 8 is provided in the feeding hopper 1, and the vertical rotating shaft 8 coincides with the central axis of the feeding hopper 1. The upper end of the vertical rotating shaft 8 passes through the circular cover plate and is connected to a rotating motor 5. A scraper rod 7 is fixed on the vertical rotating shaft 8 located in the feeding hopper 1, and the scraper rod 7 contacts the inner wall of the feeding hopper 1.

[0020] During operation, the raw materials required for making ceramic sand with good proportions are respectively fed into different feed barrels 2. The forward and reverse motors 4 on each feed barrel 2 drive the corresponding feeding screw to rotate forward and reverse periodically, and the materials are continuously crushed and evenly dispersed in the feed barrel 2. The crushed small particles (which meet the requirements for ceramic sand preparation) enter the feeding hopper 1 through the sieve holes 9, and are uniformly added to another ceramic sand preparation equipment through the feeding hopper 1, such as into a mixing tank for the next mixing operation. In the above process, the materials are continuously crushed and screened until all the materials meet the requirements, without affecting the proportion of the materials. The scraper rod 7 can preliminarily mix the materials that fall on the inner wall of the feeding hopper 1, and can prevent the materials from sticking to the inner wall of the feeding hopper 1, which is beneficial to the unloading of the feeding hopper 1.

[0021] Example 2

[0022] like Figure 1 , 3 As shown, the utility model provides a feeding device for preparing ceramic sand, comprising a feeding hopper 1, wherein the feeding hopper 1 is conical, a circular cover plate is fixed on the top of the feeding hopper 1, and a discharge pipe 12 is provided at the bottom of the feeding hopper 1;

[0023] A plurality of horizontal feeding barrels 2 are evenly fixed along the circumference of the circular cover plate, and the plurality of feeding barrels 2 are radially distributed on the circular cover plate. A feeding screw is provided in the feeding barrel 2, and the feeding screw comprises a horizontal rotating shaft and a feeding paddle fixed on the horizontal rotating shaft. One end of the horizontal rotating shaft extends out of the feeding barrel 2 and is connected to a forward and reverse motor 4. The feeding paddle is a cutting blade 6 spirally wound on the horizontal rotating shaft. A feeding hopper 3 is provided at the end of the feeding barrel 2 away from the center of the circular cover plate, and the lower half of the feeding barrel 2 is located in the feeding hopper 1. The side wall of the feeding barrel 2 located in the feeding hopper 1 is evenly covered with sieve holes 9.

[0024] A vertical rotating shaft 8 is provided in the feeding hopper 1, and the vertical rotating shaft 8 coincides with the central axis of the feeding hopper 1. The upper end of the vertical rotating shaft 8 passes through the circular cover plate and is connected to a rotating motor 5. A scraper rod 7 is fixed on the vertical rotating shaft 8 located in the feeding hopper 1, and the scraper rod 7 contacts the inner wall of the feeding hopper 1.

[0025] A matching feeding screw 11 is disposed in the discharge pipe 12 , and the upper end of the feeding screw 11 is fixedly connected to the lower end of the vertical rotating shaft 8 .

[0026] A plurality of cleaning brushes 10 are disposed on the horizontal rotating shaft, and the plurality of cleaning brushes 10 are sequentially arranged along the axial direction of the horizontal rotating shaft, and the bristles of the cleaning brushes 10 cooperate with the inner wall of the feed cylinder with the sieve holes 9 .

[0027] During operation, the raw materials required for making ceramic sand with a good ratio are respectively put into different feed barrels 2. The forward and reverse motors 4 on each feed barrel 2 drive the corresponding feeding screw to rotate forward and backward periodically, and the materials are continuously crushed and evenly dispersed in the feed barrel 2. The crushed small particles (meeting the requirements for ceramic sand preparation) enter the feeding hopper 1 through the sieve hole 9, and are uniformly added to another ceramic sand preparation equipment through the feeding hopper 1, such as adding it to the mixing tank for the next mixing operation. In the above process, each material is continuously crushed and screened until all materials meet the requirements, without affecting the ratio of each material. The cleaning brush 10 can clean the sieve hole 9 while the feeding screw 1 is crushing and conveying the material, avoiding the sieve hole 9 from being blocked, thereby improving the separation efficiency of qualified materials and unqualified materials in the feed barrel 2, and avoiding excessive crushing and affecting the effect. The scraper rod 7 can preliminarily mix the materials falling on the inner wall of the feeding hopper 1, and can avoid the adhesion of the materials on the inner wall of the feeding hopper 1, which is conducive to the unloading of the feeding hopper 1. The feeding screw 11 avoids the blockage of the discharge pipe 12, further premixes the materials, and further improves the feeding efficiency.

[0028] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A feeding device for preparing ceramic sand, comprising a feeding hopper, characterized in that: The feeding hopper is conical, a circular cover plate is fixed on the top of the feeding hopper, and a discharge pipe is provided at the bottom of the feeding hopper; A plurality of horizontal feed barrels are evenly fixed along the circumference of the circular cover plate, and the plurality of feed barrels are radially distributed on the circular cover plate. A feeding screw is provided in the feed barrel, and the feeding screw comprises a horizontal rotating shaft and a feeding paddle fixed on the horizontal rotating shaft. One end of the horizontal rotating shaft extends out of the feed barrel and is connected to a forward and reverse motor. The feeding paddle is a cutting blade spirally wound on the horizontal rotating shaft. A feed hopper is provided at the end of the feed barrel away from the center of the circular cover plate, and the lower half of the feed barrel is located in the feeding hopper. The side wall of the feed barrel located in the feeding hopper is evenly covered with sieve holes.

2. A feeding device for preparing ceramic sand according to claim 1, characterized in that: A vertical rotating shaft is arranged in the feeding hopper, and the vertical rotating shaft coincides with the central axis of the feeding hopper. The upper end of the vertical rotating shaft passes through the circular cover plate and is connected to a rotating motor. A scraper rod is fixed on the vertical rotating shaft in the feeding hopper, and the scraper rod contacts the inner wall of the feeding hopper.

3. A feeding device for preparing ceramic sand according to claim 2, characterized in that: A matching feeding screw rod 2 is arranged in the discharge pipe, and the upper end of the feeding screw rod 2 is fixedly connected to the lower end of the vertical rotating shaft.

4. A feeding device for preparing ceramic sand according to claim 1, characterized in that: The horizontal rotating shaft is provided with a plurality of cleaning brushes, which are arranged in sequence along the axial direction of the horizontal rotating shaft, and the bristles of the cleaning brushes cooperate with the inner wall of the feed barrel with sieve holes.

Images