Silicon micro-powder and fly ash exchange system

Abstract

The utility model discloses a silica fume and fly ash exchange system which comprises a stock bin, the stock bin is fixed on the ground through supporting legs, the bottom of the stock bin is connected with a material conveying device, the material conveying device is connected with a weighing bin through a first connecting pipe, the side face of the weighing bin is connected with a weighing device, and the weighing device is connected with a second connecting pipe. The weighing device is fixed to the supporting legs through a supporting plate, a valve is installed at the bottom of the weighing bin and connected with a third connecting pipe, the third connecting pipe is connected with a conveying pipe, an air pump is fixed to one end of the conveying pipe through an air pump support, and the air pump is connected with the conveying pipe through a second connecting pipe. A flow dividing device is installed in the conveying pipe, and the conveying pipe is connected with the stirring bin. By means of the device, accurate weighing can be conducted during transportation of the micro silicon powder and the coal ash, the purpose of quantitative transportation is achieved, the bin can be cleaned during transportation, raw material waste and bin contamination are avoided, and the conveying state of the micro silicon powder and the conveying state of the coal ash can be switched at any time.

Description

Technical Field

[0001] The utility model relates to the technical field of powder conveying, in particular to a microsilica powder and fly ash exchange system. Background Art

[0002] In the concrete industry, microsilica fume and fly ash are important admixtures that have a significant impact on the strength, durability and other properties of concrete. However, in actual production, due to differences in raw material sources and quality as well as changes in production needs, it is often necessary to exchange microsilica fume and fly ash or adjust their proportions. Traditional methods often suffer from low efficiency, inability to carry out quantitative material transportation, inability to flexibly switch between the two materials to be transported, dusty raw materials easily sticking to the silo walls, and large space requirements. These problems seriously affect the continuity of concrete production and product quality. To this end, we have proposed a microsilica fume and fly ash exchange system to solve the above problems. Utility Model Content

[0003] The utility model provides a microsilica powder and fly ash exchange system, which solves the problems of traditional microsilica powder and fly ash transportation methods such as low efficiency, inability to transport quantitative raw materials, inability to flexibly switch between two raw materials to be transported, dusty raw materials easily sticking to the silo wall, and large space occupation.

[0004] The utility model provides a microsilica powder and fly ash exchange system, comprising a silo, wherein the silo is fixed to the ground by supporting legs, the bottom of the silo is connected to a feeding device, the feeding device is connected to a weighing silo via a first connecting pipe, the side of the weighing silo is connected to a weighing device, the weighing device is fixed to the supporting legs via a support plate, a valve is installed at the bottom of the weighing silo, the valve is connected to a third connecting pipe, the third connecting pipe is connected to a transport pipe, an air pump is fixed to one end of the transport pipe via an air pump bracket, the air pump is connected to the transport pipe via a second connecting pipe, a diversion device is installed in the transport pipe, and the transport pipe is connected to a mixing silo.

[0005] Preferably, the feeding device includes a gear housing, which is connected to the bottom of the silo. Two conveying gears are installed in the gear housing, and the two conveying gears are meshed with each other. The conveying gears are connected to a motor, and the motor is fixed to the gear housing.

[0006] Preferably, the weighing device includes a bracket, the bracket is fixed to the side of the weighing bin, a load-bearing block is fixed under the bracket, a limit baffle is installed on the side of the load-bearing block, a weight sensor is provided under the load-bearing block, the load-bearing block conflicts with the weight sensor, the weight sensor is installed on a shock-absorbing pad, and the shock-absorbing pad is fixed on the support plate.

[0007] Preferably, the transport pipe is fixed on the ground by a transport pipe bracket.

[0008] Preferably, there are two silos.

[0009] Preferably, the diverter device comprises a baffle shaft, which is installed at the Y-shaped intersection of the transport pipe and is connected to a baffle.

[0010] Preferably, a vibrator is installed on the lower side of the silo.

[0011] Preferably, the first connecting pipe and the third connecting pipe are corrugated pipes.

[0012] Preferably, the valve is a pneumatic gate valve.

[0013] It can be seen from the above technical scheme that the utility model provides a microsilica powder and fly ash exchange system. When the present application is in use, the microsilica powder and fly ash are first stored in two identical silos, which are connected by a transport pipe at the bottom. The microsilica powder or fly ash flows from the silo into the weighing bin via a feeding device. The feeding device is composed of a conveying gear, a gear housing and a motor. The two conveying gears are tightly meshed with each other and close to the gear housing. When feeding, the motor drives the two conveying gears to reverse, so that the material moves along the direction of the gear housing, and falls into the weighing bin after rotating half a circle. The weighing bin is connected to bellows at the top and bottom to prevent affecting the accuracy of weighing. Weighing devices are fixed on both sides of the weighing silo, and the weighing devices are fixed on the support legs by support plates. When the required raw materials reach the predetermined weight, the pneumatic plug-in valve under the weighing bin is opened, and the air pump is started. The material reaches the final mixing bin along the transport pipe. A diversion device is installed in the transport pipe, which can automatically change the direction of the airflow generated by the air pump, and can freely switch the transportation of microsilica powder and fly ash.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. Microsilica fume and fly ash can be weighed before transportation to achieve the purpose of quantitative transportation. The feeding device and the weighing device work closely together, which significantly improves the weighing accuracy and can improve the production efficiency of concrete and the stability of the product.

[0016] 2. The conveying status of microsilica fume and fly ash can be switched at any time, and they share a channel, which saves space and improves conveying efficiency;

[0017] 3. Vibration can make the microsilica powder and fly ash stuck on the silo wall slide off to prevent them from sticking to the silo wall, thus avoiding the waste of raw materials and the need for frequent cleaning of the silo.

[0018] In summary, by using the present application, microsilica powder and fly ash can be accurately weighed during transportation to achieve the purpose of quantitative transportation. The silo can also be cleaned during transportation to avoid waste of raw materials and silo contamination. The transportation status of microsilica powder and fly ash can be switched at any time, significantly improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for implementation. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 This is a schematic cross-sectional view of a microsilica fume and fly ash exchange system proposed in the present invention;

[0021] Figure 2 This is a side structural diagram of a microsilica fume and fly ash exchange system proposed in the utility model;

[0022] Figure 3 This is a schematic diagram of the top view of a microsilica fume and fly ash exchange system proposed in the utility model;

[0023] Figure 4 This is a schematic cross-sectional view of a weighing device A of a microsilica fume and fly ash exchange system proposed in the present invention;

[0024] Figure 5 This is a schematic cross-sectional view of a diversion device B of a microsilica fume and fly ash exchange system proposed in the present invention;

[0025] Figure 6 This is a schematic cross-sectional view of a feeding device C of a microsilica fume and fly ash exchange system proposed in the present invention;

[0026] Figure 7 This is a structural schematic diagram of a feeding device of a microsilica powder and fly ash exchange system proposed in the utility model.

[0027] In the figure: 1. silo, 2. vibrator, 3. support leg, 4. conveying gear, 5. gear housing, 6. first connecting pipe, 7. air pump, 8. second connecting pipe, 9. weighing bin, 10. valve, 11. weighing device, 111. bracket, 112. load-bearing block, 113. limit baffle, 114. weight sensor, 115. shock-absorbing pad, 12. transport pipe bracket, 13. transport pipe, 14. mixing bin, 15. motor, 16. diverter, 161. baffle shaft, 162. baffle, 17. support plate, 18. third connecting pipe, 19. conveying device, 20. air pump bracket. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0029] See also Figure 1-7 A microsilica powder and fly ash exchange system is used in the field of powder conveying technology. It can arbitrarily mix the quantitative transportation of microsilica powder and fly ash. Specifically, it includes a silo 1, which is fixed to the ground by legs 3. A vibrator 2 is installed at the bottom of the silo 1. Because dust easily sticks to form blocks and is easily adsorbed on the inner wall of the container, the vibrator 2 can be used to make the powder completely sink to the bottom of the silo 1 when unloading, so that the unloading is more sufficient, and it is not easy to waste materials. There is no need to frequently clean the silo 1 due to blockage and accumulation problems. The bottom of the silo 1 is connected It is connected to a feeding device 19, which is connected to a weighing bin 9 through a first connecting pipe 6. A weighing device 11 is connected to the side of the weighing bin 9. The weighing device 11 is fixed to the support leg 3 through a support plate 17. The weighing device 11 carries the mass of all weighing bins 9 through the support legs and is fixed to the ground together with the silo 1 through the support legs 3. This is not only convenient for fixing but also saves space. A valve 10 is installed at the bottom of the weighing bin 9. The valve 10 is a pneumatic gate valve. The pneumatic gate valve can pass dust with full caliber and will not be like other valves. Due to the structural problem of the valve itself, powder accumulates in the valve body. The valve 10 is connected to a third connecting pipe 18. The third connecting pipe 18 and the first connecting pipe 6 are both bellows. Since all the weight of the weighing bin 9 needs to be supported by the weighing device 11, in order to prevent interference, it is necessary to avoid rigid connection between the weighing bin 9 and other equipment, so a bellows is used. The third connecting pipe 18 is connected to the transport pipe 13. One end of the transport pipe 13 is fixed with the air pump 7 through the air pump bracket 20. The air pump 7 is connected to the transport pipe 13 through the second connecting pipe 8. The transport pipe 13 is fixed to the ground by a transport pipe bracket 12. A diverter device 16 is installed in the transport pipe 13. The transport pipe 13 is connected to the mixing bin 14. Since microsilica powder and fly ash need to be exchanged, the present application has two silos 1 to respectively hold microsilica powder and fly ash. The microsilica powder reaches the weighing bin 9 through the feeding device 19, and is then transported to the mixing bin 14 through a pneumatic pipeline. The pneumatic transportation of the powder can greatly reduce the possibility of sticking to the inner wall. The entire equipment can be closely coordinated to accurately and quantitatively realize the mixing of microsilica powder and fly ash.

[0030] In the present utility model, the feeding device 19 includes a gear housing 5, which is connected to the bottom of the silo 1. Two conveying gears 4 are installed in the gear housing 5. The two conveying gears 4 are meshed with each other. The conveying gears 4 are connected to the motor 15. The motor 15 is fixed on the gear housing 5. The motor drives one of the transport gears 4 to rotate, and this transport gear 4 drives the other transport gear 4 to rotate. When feeding, the two conveying gears 4 transport the material by rotating in the opposite direction. The material moves around the gear housing 5 half a circle as the gear 19 rotates, and is finally transported to the weighing bin 9. It is recommended to use a servo motor for the motor 15. The gears can be fine-tuned during weighing to avoid affecting the ingredients by unloading too much material at one time.

[0031] In the present invention, the weighing device 11 includes a bracket 111, which is fixed to the side of the weighing bin 9. In this application, the number of brackets 111 is four, which are symmetrically fixed on both sides of the weighing bin 9. A load-bearing block 112 is fixed under the bracket 111, and a limit baffle 113 is installed on the side of the load-bearing block 112. The limit baffle 113 can prevent the load-bearing block 112 from contacting the weight sensor 114 when the weight of the weighing bin 9 changes or when the air pump 7 vibrates due to work. Relative sliding occurs between them, and a weight sensor 114 is provided under the load-bearing block 112. The load-bearing block 112 conflicts with the weight sensor 114. The weight sensor 114 is installed on a shock-absorbing pad 115, and the shock-absorbing pad 115 is fixed on the support plate 17. Because the support plate 17 is fixed on the support leg 3, and the support leg 3 also fixes the silo 1 at the same time, the vibration generated by the silo 1 will eventually be transmitted to the weighing bin 9 along the support plate 17. Therefore, a shock-absorbing pad is installed under the gravity sensor to ensure the accuracy of weighing.

[0032] In the present invention, the diverter device 16 includes a baffle shaft 161, which is installed at the Y-shaped intersection of the transport pipe 13. The baffle shaft is connected to a baffle 162. The diverter device 16 can automatically change direction by the force of the gas during pneumatic transportation, and has a simple structure, which can prevent microsilica powder from mixing with fly ash and affecting the final batching result.

[0033] As can be seen from the above technical solution, when in use, first, the microsilica powder and fly ash are stored in two identical silos 1, which are connected at the bottom by a transport pipe 13. The microsilica powder or fly ash flows from the silo 1 through the feeding device 19 into the weighing bin 9. The feeding device 19 is composed of a conveying gear 4, a gear housing 5 and a motor 15. The two conveying gears 4 are tightly meshed with each other and close to the gear housing 5. When feeding, the motor 15 drives the two conveying gears 4 to reverse, so that the material moves along the direction of the gear housing 5 and falls into the weighing bin after rotating half a circle. In the heavy bin 9, the weighing bin 9 is connected to bellows at the top and bottom to prevent affecting the accuracy of weighing. Weighing devices 11 are fixed on both sides of the weighing bin. The weighing device 11 is fixed on the support leg 3 through the support plate 17. When the required raw materials reach the predetermined weight, the pneumatic plug valve under the weighing bin 9 is opened, and the air pump 7 is started. The material reaches the final mixing bin 14 along the transport pipe 13. A diverter device 16 is installed in the transport pipe 13, which can automatically change the direction of the airflow generated by the air pump 7, and can freely switch the transportation of microsilica powder and fly ash.

[0034] Those skilled in the art will readily conceive of other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered merely as exemplary; the true scope of the invention is indicated by the claims.

[0035] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The above-described embodiments of the present invention do not constitute a limitation on the scope of protection of the present invention.

Claims

1. A microsilica fume and fly ash exchange system, comprising a silo (1), characterized in that: The silo (1) is fixed on the ground through a support leg (3); a feeding device (19) is connected to the bottom of the silo (1); the feeding device (19) is connected to a weighing bin (9) through a first connecting pipe (6); a weighing device (11) is connected to the side of the weighing bin (9); the weighing device (11) is fixed to the support leg (3) through a support plate (17); a valve (10) is installed at the bottom of the weighing bin (9); the valve (10) is connected to a third connecting pipe (18); the third connecting pipe (18) is connected to a transport pipe (13); an air pump (7) is fixed to one end of the transport pipe (13) through an air pump bracket (20); the air pump (7) is connected to the transport pipe (13) through a second connecting pipe (8); a diverter device (16) is installed in the transport pipe (13); and the transport pipe (13) is connected to a stirring bin (14).

2. A microsilica fume and fly ash exchange system according to claim 1, characterized in that: The feeding device (19) includes a gear housing (5), the gear housing (5) is connected to the bottom of the silo (1), two conveying gears (4) are installed in the gear housing (5), the two conveying gears (4) are meshed with each other, the conveying gears (4) are connected to the motor (15), and the motor (15) is fixed on the gear housing (5).

3. The microsilica fume and fly ash exchange system according to claim 1, characterized in that: The weighing device (11) includes a bracket (111), the bracket (111) is fixed to the side of the weighing bin (9), a load-bearing block (112) is fixed below the bracket (111), a limit baffle (113) is installed on the side of the load-bearing block (112), a weight sensor (114) is provided below the load-bearing block (112), the load-bearing block (112) is in conflict with the weight sensor (114), the weight sensor (114) is installed on a shock-absorbing pad (115), and the shock-absorbing pad (115) is fixed on the support plate (17).

4. The microsilica fume and fly ash exchange system according to claim 1, characterized in that: The transport pipe (13) is fixed on the ground via a transport pipe bracket (12).

5. The microsilica fume and fly ash exchange system according to claim 1, characterized in that: The number of the silos (1) is two.

6. A microsilica fume and fly ash exchange system according to claim 5, characterized in that: The diversion device comprises a baffle shaft (161), the baffle shaft (161) is installed at the Y-shaped intersection of the transport pipe (13), and the baffle shaft is connected to a baffle (162).

7. The microsilica fume and fly ash exchange system according to claim 5, characterized in that: A vibrator (2) is installed on the lower side of the silo (1).

8. The microsilica fume and fly ash exchange system according to claim 1, characterized in that: The first connecting pipe (6) and the third connecting pipe (18) are corrugated pipes.

9. The microsilica fume and fly ash exchange system according to claim 1, characterized in that: The valve (10) is a pneumatic gate valve.

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