Superfine calcium carbonate production distributing device

Abstract

The utility model discloses an ultra-fine calcium carbonate production distributing device which is characterized in that a blanking pipe is arranged at the lower end of a blanking tank, a blanking control electromagnetic valve is arranged on the blanking pipe, the blanking pipe is connected with a main conveying pipe, a main air pump machine is arranged at the front end of the main conveying pipe, the rear end of the main conveying pipe is connected with a plurality of output branch pipes, and the output branch pipes are connected with the main air pump machine. As the valves are arranged in front of and behind the output tail ends, when one output tail end needs to stop discharging, the output control valve can be closed immediately to ensure that discharging is stopped quickly, at the moment, the output control valve at the front end is closed slowly, the influence of flow change on pressure change of the whole system is reduced, and quick pressure change of other tail ends is avoided; and the separation efficiency of the cyclone separator is possibly reduced, so that a rear air pump is blocked, and the normal work of equipment is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of powder air conveying equipment, in particular to a superfine calcium carbonate production and distributing device. Background Art

[0002] Pneumatic conveying device, also known as pneumatic lifting system, is a device that uses the energy of air to continuously convey and lift powdered bulk materials (cement, fly ash, slag powder, clinker, etc.). Traditional mechanical lifting equipment has the advantages of large lifting capacity, rich lifting types, and high lifting height, and is widely used in various industries in today's society. However, it also has many disadvantages that cannot be underestimated. The equipment price is high, the one-time investment is large, the maintenance volume is large, and it is difficult to operate. The equipment is heavy, the civil engineering investment is large, the floor area is large, and it is subject to many restrictions on site conditions. From the perspective of industrial application, the transportation of materials accounts for a large proportion in actual production, and most of the power is consumed in the transportation of raw materials or products. Selecting and designing a reasonable transportation method has become an important part of improving production efficiency and reducing costs. It is well known that the circulation process of powder materials such as cement, fly ash, slag powder, clinker, etc. is bulk transportation and use, which has great social and economic benefits. Especially for countries where the production and consumption of cement and fly ash are among the highest in the world and the bulk ratio of cement is still very low, the development of bulk transportation appears to be more potential and meaningful. The pneumatic lifting system can deliver powder materials to bulk transport vehicles (such as vehicles, ships, containers, bulk bags, etc.), supply materials to the mixing building of the concrete mixing plant, and supply materials to the bulk silo and the grinding head silo in the grinding room.

[0003] Currently, China's application number: CN201510114355.8 discloses a pneumatic conveying device, which includes a base, a silo, a feed port, a discharge pipe 1, a No. 1 fan, a feed pipe 1, a collecting pipe 1, a collecting device 1, a discharge pipe 2, a No. 2 fan, a pipeline, a feed pipe 2, a collecting pipe 2, a collecting device 2, a discharge pipe 3, a No. 3 fan, a collecting pipe 3, a collecting device 3, a scraper system, a filter screen, and a tool wheel. The present invention installs a powder concentration detection device on the pipeline, and controls the speed of the spindle motor through the detection signal to control the powder concentration, that is, the mesh size of the powder. By judging the powder concentration, powders of different mesh sizes can be distinguished. In this way, the number of collecting fans can be reduced, the working efficiency of the pneumatic conveying device can be improved, and the degree of automation of the machine can be enhanced.

[0004] However, in actual use, the prior art still has the problem that there may be multiple output terminals in a conveying device, and when one of them is closed, it will cause rapid pressure changes in other terminals, which may cause the separation efficiency of the cyclone separator to decrease and cause blocking of its rear air pump. Utility Model Content

[0005] Therefore, in view of the above-mentioned problems, the utility model proposes an ultra-fine calcium carbonate production and distributing device, which solves the technical problem that the prior art still has multiple output terminals during actual use, and when one of them is closed, it will cause rapid pressure changes in other terminals, which may cause the separation efficiency of the cyclone separator to decrease and cause blockage of its rear air pump.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a superfine calcium carbonate production and distributing device, the structure of which includes a feed tank, a feed control solenoid valve, a main conveying pipe, a main air pump, an output branch pipe, a branch pipe control valve, a cyclone separator, a separator output pipe, an output control valve, a separator exhaust pipe, and a terminal negative pressure fan. A feed tank is provided with a feed pipe at the lower end, a feed control solenoid valve is provided on the feed pipe, the feed pipe is connected to the main conveying pipe, a main air pump is provided at the front end of the main conveying pipe, and the main conveying The rear end of the tube is connected to a plurality of output branch pipes, and the output branch pipe, branch pipe control valve, cyclone separator, separator output pipe, output control valve, separator exhaust pipe, and terminal negative pressure fan are defined as the output terminal. A branch pipe control valve is arranged on the output branch pipe, the output branch pipe is connected to the cyclone separator, the lower end of the cyclone separator is connected to the separator output pipe, an output control valve is arranged on the separator output pipe, the upper end of the cyclone separator is connected to the separator exhaust pipe, and the terminal of the separator exhaust pipe is connected to the terminal negative pressure fan.

[0007] Furthermore, the main delivery pipe is connected to a plurality of output terminals.

[0008] Furthermore, the main delivery pipe and the output branch pipe are both provided with pressure detectors.

[0009] Furthermore, the output branch pipe is a hose structure.

[0010] Further, the output end connected by the output branch pipe of the hose structure is arranged as a movable structure.

[0011] Furthermore, a sliding trolley is provided at the bottom of the cyclone separator and the terminal negative pressure fan, and the sliding trolley is arranged on a track.

[0012] By adopting the above-mentioned technical scheme, the beneficial effects of the utility model are as follows: the ultra-fine calcium carbonate production and distribution device improves the prior art in which there are still multiple output terminals in actual use, and when one of them is closed, it will cause rapid pressure changes in other terminals, which may cause the separation efficiency of the cyclone separator to decrease and block its rear air pump. By arranging valves before and after the output terminal, when one output terminal needs to stop discharging, the output control valve can be closed immediately to ensure that the discharging is quickly stopped. At this time, the output control valve at the front end is slowly closed to reduce the impact of flow changes on the pressure changes of the entire system, avoiding rapid pressure changes in other terminals, which may cause the separation efficiency of the cyclone separator to decrease and block its rear air pump, thereby ensuring the normal operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] In the figure: 1. unloading tank; 2. unloading control solenoid valve; 3. main conveying pipe; 4. main air pump; 5. output branch pipe; 6. branch pipe control valve; 7. cyclone separator; 8. separator output pipe; 9. output control valve; 10. separator exhaust pipe; 11. terminal negative pressure fan. DETAILED DESCRIPTION

[0015] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.

[0016] refer to Figure 1 The present embodiment provides a superfine calcium carbonate production and distributing device, which structure includes a feed tank 1, a feed control solenoid valve 2, a main conveying pipe 3, a main air pump 4, an output branch pipe 5, a branch pipe control valve 6, a cyclone separator 7, a separator output pipe 8, an output control valve 9, a separator exhaust pipe 10, and a terminal negative pressure fan 11. A feed tank 1 is provided with a feed pipe at the lower end, a feed control solenoid valve 2 is provided on the feed pipe, the feed pipe is connected to the main conveying pipe 3, a main air pump 4 is provided at the front end of the main conveying pipe 3, and a plurality of output branch pipes are connected to the rear end of the main conveying pipe 3. 5, the output branch pipe 5, the branch pipe control valve 6, the cyclone separator 7, the separator output pipe 8, the output control valve 9, the separator exhaust pipe 10, and the terminal negative pressure fan 11 are defined as the output terminal, the output branch pipe 5 is provided with a branch pipe control valve 6, the output branch pipe 5 is connected to the cyclone separator 7, the lower end of the cyclone separator 7 is connected to the separator output pipe 8, the output control valve 9 is provided on the separator output pipe 8, the upper end of the cyclone separator 7 is connected to the separator exhaust pipe 10, and the end of the separator exhaust pipe 10 is connected to the terminal negative pressure fan 11.

[0017] The main delivery pipe 3 is connected to a plurality of output terminals.

[0018] The main delivery pipe 3 and the output branch pipe 5 are both provided with pressure detectors.

[0019] The output branch pipe 5 is a hose structure.

[0020] The output terminal connected by the output branch pipe 5 of the hose structure is provided as a movable structure.

[0021] A sliding trolley is arranged at the bottom of the cyclone separator 7 and the terminal negative pressure fan 11, and the sliding trolley is arranged on a track.

[0022] The present ultrafine calcium carbonate production and distribution device improves the prior art which still has multiple output terminals in actual use. When one of them is closed, it will cause rapid pressure changes in other terminals, which may cause the separation efficiency of the cyclone separator 7 to decrease and block the rear air pump. By arranging valves before and after the output terminals, when one output terminal needs to stop discharging materials, the output control valve 9 can be closed immediately to ensure that the discharging is quickly stopped. At this time, the output control valve 9 at the front end is slowly closed. After the output control valve 9 at the front end is completely closed, the terminal negative pressure fan 11 is controlled to be shut down, reducing the impact of flow changes on the pressure changes of the entire system, avoiding rapid pressure changes at other terminals, which may cause the separation efficiency of the cyclone separator 7 to decrease and block the rear air pump, thereby ensuring the normal operation of the equipment.

[0023] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0024] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A material distribution device for producing ultrafine calcium carbonate, characterized in that: Its structure includes a discharge tank, a discharge control solenoid valve, a main conveying pipe, a main air pump, an output branch pipe, a branch pipe control valve, a cyclone separator, a separator output pipe, an output control valve, a separator exhaust pipe, and a terminal negative pressure fan. A discharge pipe is arranged at the lower end of the discharge tank, a discharge control solenoid valve is arranged on the discharge pipe, the discharge pipe is connected to the main conveying pipe, a main air pump is arranged at the front end of the main conveying pipe, and the rear end of the main conveying pipe is connected to multiple output branch pipes. The output branch pipe, the branch pipe control valve, the cyclone separator, the separator output pipe, the output control valve, the separator exhaust pipe, and the terminal negative pressure fan are defined as the output terminal, a branch pipe control valve is arranged on the output branch pipe, the output branch pipe is connected to the cyclone separator, the lower end of the cyclone separator is connected to the separator output pipe, an output control valve is arranged on the separator output pipe, the upper end of the cyclone separator is connected to the separator exhaust pipe, and the end of the separator exhaust pipe is connected to the terminal negative pressure fan.

2. The ultrafine calcium carbonate production and distribution device according to claim 1, characterized in that: The main delivery pipe is connected to a plurality of output terminals.

3. A superfine calcium carbonate production and distribution device according to claim 1, characterized in that: The main delivery pipe and the output branch pipe are both provided with pressure detectors.

4. The ultrafine calcium carbonate production and distribution device according to claim 1, characterized in that: The output branch pipe is a hose structure.

5. A superfine calcium carbonate production and distribution device according to claim 4, characterized in that: The output terminal connected by the output branch pipe of the hose structure is arranged as a movable structure.

6. The ultrafine calcium carbonate production and distribution device according to claim 5, characterized in that: A sliding trolley is arranged at the bottom of the cyclone separator and the terminal negative pressure fan, and the sliding trolley is arranged on a track.

Images