CN215478338U - Receiving tank for pneumatic conveying of fly ash guniting material - Google Patents
Receiving tank for pneumatic conveying of fly ash guniting material Download PDFInfo
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- CN215478338U CN215478338U CN202122044956.XU CN202122044956U CN215478338U CN 215478338 U CN215478338 U CN 215478338U CN 202122044956 U CN202122044956 U CN 202122044956U CN 215478338 U CN215478338 U CN 215478338U
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Abstract
The utility model discloses a receiving tank for pneumatic conveying of a pulverized fuel ash guniting material, wherein the receiving tank is a pressure container tank and comprises a tank body, a receiving pipe, a discharging pipe and a compressed air pipe are connected to the tank body, the receiving pipe is connected with a pumping mechanism for conveying fluidized materials into the tank body, the discharging pipe is connected with a spraying mechanism for spraying the materials, the compressed air pipe is connected with an air source, the compressed air pipe and the receiving pipe are positioned on the same side of the tank body, the discharging pipe and the receiving pipe are positioned on different sides of the tank body, and the compressed air pipe and the discharging pipe are positioned on the same central axis; the top of the tank body is provided with a manhole, a sealing cover is arranged outside the manhole, and a filter bag dust remover is arranged inside the manhole. The utility model has novel structure, and the material receiving pipe is connected with the pumping mechanism on the tank body for feeding, so that the pipeline blockage and the dust leakage are not easy to generate in the operation process.
Description
Technical Field
The utility model relates to the technical field of material conveying, in particular to a material receiving tank for pneumatic conveying of a fly ash guniting material.
Background
The existing guniting technology for coal mines adopts a rotor type concrete spraying machine set, and cement, sand, stone and an accelerator which are well mixed are directly conveyed to a mixer by the rotor type concrete spraying machine and then are sprayed out by a spraying gun. Because the raw material stirring process is in a semi-open state, the dust generation amount is large, the resilience material is large, the operation links are multiple, and the work efficiency is relatively low in the construction process. Especially, some areas are limited by materials, and the engineering cost is high.
The fly ash is used as the admixture of the guniting material, so that the using amount of cement and sand can be reduced, the production cost of the guniting material is reduced, the added value of the fly ash is improved, and the market radius is enlarged. Meanwhile, the working performance of the guniting material can be improved by adding the fly ash, the application of the high-performance guniting material with high durability and long service life is more and more common, and the production of the high-performance guniting material by using the fly ash is an important direction for the comprehensive utilization of the fly ash.
The fly ash-based guniting material consists of cement, fly ash and an additive, and is mainly used for guniting support of the wall surface of an underground roadway of a coal mine. Due to the construction environment, the guniting material needs to be transported over long distances from the surface to the downhole.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a material receiving tank for pneumatic conveying of a fly ash guniting material.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows: a receiving tank for pneumatically conveying fly ash guniting materials is a pressure container tank and comprises a tank body, wherein the tank body is of a horizontal square barrel-shaped structure, a receiving pipe and a discharging pipe are connected to the tank body, one end of the receiving pipe is connected to the upper portion of one side of the tank body and is mutually communicated with an inner cavity of the tank body, the other end of the receiving pipe is connected with a pumping mechanism for conveying fluidized materials into the tank body, one end of the discharging pipe is connected to the lower portion of the other side of the tank body and is mutually communicated with the inner cavity of the tank body, the other end of the discharging pipe is connected with a spraying mechanism for spraying the materials, the tank body is also connected with an air compressing pipe, one end of the air compressing pipe is connected to the bottom of the tank body and is mutually communicated with the inner cavity of the tank body, the other end of the air compressing pipe is connected with an air source, and the air compressing pipe and the receiving pipe are positioned on the same side of the tank body, the air compression pipe and the discharge pipe are positioned on the same central axis;
the top of the tank body is provided with a manhole, the manhole is externally provided with a sealing cover, and a filter bag dust remover is arranged in the manhole.
Preferably, pumping mechanism is including setting up the bin pump in the feed bin lower part, be provided with the fluidizer in the bin pump, the feed inlet of bin pump pass through the feed valve with the discharge gate intercommunication of feed bin, the discharge gate of bin pump passes through bleeder valve and material receiving pipe intercommunication, and the air inlet of bin pump is respectively through defeated air valve and fluidization pneumatic valve and compressed air source intercommunication, and the gas vent of bin pump passes through discharge valve and feed bin intercommunication, feed valve, bleeder valve, defeated air valve, fluidization pneumatic valve, discharge valve respectively with control system electrical connection.
Preferably, still install the charge level indicator A that is used for reading the interior material volume of storehouse pump and be used for reading the pressure sensor of storehouse pump internal pressure on the storehouse pump, install the charge level indicator B that reads the interior material volume of jar on the jar body, charge level indicator A, charge level indicator B and pressure sensor respectively with control system electrical connection.
Preferably, a bin top dust remover is arranged on the bin.
Preferably, the horizontal distance between the receiving tank and the spray body is 100-200 m.
Compared with the prior art, the full-closed material receiving tank is adopted, the structure is simple, the overhaul and maintenance amount is small, the full-closed material receiving tank can be placed in an underground chamber, the material receiving pipe is connected with the ground pumping mechanism on the tank body to convey the powder, the pumping mechanism can fluidize the powder well, the conveying efficiency and the quality of the powder are further improved, the pipeline blockage and the dust leakage are not easy to generate in the operation process, and the full-closed material receiving tank is a safe, efficient and environment-friendly conveying device.
Drawings
FIG. 1 is a schematic structural diagram of a material receiving tank for pneumatic conveying of a fly ash guniting material according to the utility model;
FIG. 2 is a schematic view of a system for pneumatic conveyance of fly ash guniting materials according to the utility model;
in the figure, 101, a tank body, 102, a receiving pipe, 103, a discharge pipe, 104, an air compression pipe, 105, a manhole, 106, a sealing cover, 107, a filter bag dust remover, 201, a bin pump, 202, a feed valve, 203, a discharge valve, 204, a conveying air valve, 205, a fluidizing air valve, 206, an exhaust valve, 301, a bin, 302 and a bin top dust remover.
Detailed Description
The utility model is described in further detail below with reference to the figures and specific examples.
As shown in figure 1, the receiving tank for the pneumatic conveying of the fly ash guniting material is a pressure container tank and comprises a tank body 101, in order to increase the stability and the convenience in transportation and storage, the tank body 101 adopts a horizontal square barrel-shaped structure, and the volume is controlled to be 12-15m3I.e. a length of not more than 4m, a height of not more than 2m and a width of not more than 1.8 m. The tank body 101 is connected with a receiving pipe 102 and is detachedA material pipe 103, one end of the material receiving pipe 102 is connected to the upper part of one side of the tank body 101 and is communicated with the inner cavity of the tank body 101, the other end of the material receiving pipe 102 is connected with a pumping mechanism for conveying fluidized materials into the tank body 101, one end of the discharge pipe 103 is connected to the lower part of the other side of the tank body 101 and is communicated with the inner cavity of the tank body 101, the other end of the discharge pipe 103 is connected with a spraying mechanism for spraying materials, the tank body 101 is also connected with a pressure air pipe 104, one end of the pressure air pipe 104 is connected to the bottom of the tank body 101 and is communicated with the inner cavity of the tank body 101, the other end of the pressure air pipe 104 is connected with an air source, the pressure air pipe 104 and the material receiving pipe 102 are located on the same side of the tank body 101, and the pressure air pipe 104 and the discharge pipe 103 are located on the same central axis;
the top of the tank body 101 is provided with a manhole 105, an external sealing cover 106 is arranged at the manhole 105, and a filter bag dust collector 107 is arranged in the manhole, and is used for discharging air and enabling personnel to enter daily maintenance when materials are received.
As shown in fig. 2, the pumping mechanism includes a bin pump 201 disposed at the lower portion of a bin 301, a fluidizer is disposed in the bin pump 201, a feed inlet of the bin pump 201 is communicated with a discharge outlet of the bin 301 through a feed valve 202, a discharge outlet of the bin pump 201 is communicated with a receiving pipe 102 through a discharge valve 203, an air inlet of the bin pump 201 is communicated with a compressed air source through an air delivery valve 204 and a fluidization air valve 205, an air outlet of the bin pump 201 is communicated with the bin 301 through an air outlet valve 206, and the feed valve 202, the discharge valve 203, the air delivery valve 204, the fluidization air valve 205, and the air outlet valve 206 are electrically connected with a control system respectively.
In order to realize intelligent control and continuous operation, still install the charge level indicator A that is used for reading the interior material volume of storehouse pump 201 and be used for reading the pressure sensor of storehouse pump 201 internal pressure on the storehouse pump 201, install the charge level indicator B that reads the interior material volume of jar body 101 on jar body 101, charge level indicator A, charge level indicator B and pressure sensor respectively with control system electrical connection.
In order to prevent dust from overflowing during material conveying, a bin top dust remover 302 is arranged on the bin 301.
In order to shorten the spraying distance of the guniting material, the horizontal distance from the material receiving tank to the guniting body is 100-200 m.
When the device is actually used, the pumping mechanism is arranged on the spacious ground far away from a guniting place, and the material receiving tank is placed in a chamber behind the guniting place to guniting the wall surface of an underground roadway of a coal mine.
During operation, the storage bin 301 is used for blanking, the bin pump feeding valve 202 and the exhaust valve 206 are opened, materials freely fall into the bin pump 201, when the materials in the bin pump 201 rise to touch the material level indicator A, the material level indicator A sends out a material full signal, the feeding valve 202 and the exhaust valve 206 are automatically closed, and the feeding process is completed. The fluidizing air valve 205 is automatically opened, compressed air enters the bin pump 201, and after being diffused, the compressed air passes through the circular fluidization, and the pressure in the pump rises while the materials are fully fluidized. When the pressure in the pump reaches a certain value, the pressure sensor sends out a signal, the conveying air valve 204 and the discharge valve 203 are automatically opened, and conveying starts. The material in the pump is gradually reduced, and the material in the pump is in a fluidization and conveying state all the time in the process. When the material conveying in the pump is finished and the pressure is reduced to the pipeline resistance, the pressure sensor sends a signal, the ventilation lasts for a certain time, the pipeline is cleaned, then the gas conveying valve 204 and the fluidizing gas valve 205 are closed, the discharging valve 203 is closed at a certain time interval, and meanwhile, the feeding valve 202 and the discharging valve 206 are opened again, so that a conveying cycle is completed.
The mixed guniting material is conveyed into the tank body 101 through the receiving pipe 102, when the material in the tank body 101 rises to touch the material level indicator B, the material level indicator B sends a material full signal, the discharge valve 203 is automatically closed, and the fault caused by continuous feeding after the material is full is avoided. The tank 101 is in a normal pressure state during transportation, and the tank 101 is in a high pressure state during guniting. Under the action of compressed air, the guniting material is mixed with water at the spraying gun head through the discharge pipe 103 to form high-speed slurry jet to be sprayed onto the guniting body. The jet flow of the slurry is controlled by adjusting the flow of compressed air and water in the spraying process, so that accurate construction is realized.
Claims (5)
1. The material receiving tank for pneumatic conveying of the fly ash guniting material is characterized by being a pressure container tank and comprising a tank body (101), wherein the tank body (101) is of a horizontal square barrel-shaped structure, a material receiving pipe (102) and a material discharging pipe (103) are connected to the tank body (101), one end of the material receiving pipe (102) is connected to the upper part of one side of the tank body (101) and is mutually communicated with an inner cavity of the tank body (101), and the other end of the material receiving pipe (102) is connected with a pumping mechanism for conveying fluidized materials into the tank body (101); one end of the discharge pipe (103) is connected to the lower part of the other side of the tank body (101) and is communicated with the inner cavity of the tank body (101), and the other end of the discharge pipe (103) is connected with a spraying mechanism for spraying materials; the tank body (101) is also connected with an air compression pipe (104), one end of the air compression pipe (104) is connected to the bottom of the tank body (101) and is communicated with an inner cavity of the tank body (101), the other end of the air compression pipe (104) is connected with an air source, the air compression pipe (104) and the material receiving pipe (102) are positioned on the same side of the tank body (101), and the air compression pipe (104) and the material discharging pipe (103) are positioned on the same central axis;
the top of the tank body (101) is provided with a manhole (105), an external sealing cover (106) and a built-in filter bag dust remover (107) are arranged at the manhole (105).
2. The receiving tank for pneumatic conveying of fly ash guniting materials according to claim 1, wherein the pumping mechanism comprises a bin pump (201) arranged at the lower part of a bin (301), a fluidizer is arranged in the bin pump (201), a feed inlet of the bin pump (201) is communicated with a discharge outlet of the bin (301) through a feed valve (202), a discharge outlet of the bin pump (201) is communicated with the receiving pipe (102) through a discharge valve (203), an air inlet of the bin pump (201) is communicated with a compressed air source through an air delivery valve (204) and a fluidization air valve (205) respectively, an air outlet of the bin pump (201) is communicated with the bin (301) through an exhaust valve (206), and the feed valve (202), the discharge valve (203), the delivery air valve (204), the fluidization air valve (205) and the exhaust valve (206) are electrically connected with a control system respectively.
3. The material receiving tank for pneumatic conveying of fly ash guniting materials according to claim 2, wherein a level gauge A for reading the volume of materials in the silo pump (201) and a pressure sensor for reading the pressure in the silo pump (201) are further installed on the silo pump (201), a level gauge B for reading the volume of materials in the tank body (101) is installed on the tank body (101), and the level gauge A, the level gauge B and the pressure sensor are respectively electrically connected with the control system.
4. The material receiving tank for pneumatic conveying of fly ash guniting materials according to claim 2 or 3, characterized in that a top dust remover (302) is arranged on the storage bin (301).
5. The material receiving tank for pneumatic conveying of pulverized fuel ash guniting materials as claimed in claim 1 or 2, wherein the horizontal distance from the material receiving tank to the guniting body is 100-200 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122044956.XU CN215478338U (en) | 2021-08-27 | 2021-08-27 | Receiving tank for pneumatic conveying of fly ash guniting material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122044956.XU CN215478338U (en) | 2021-08-27 | 2021-08-27 | Receiving tank for pneumatic conveying of fly ash guniting material |
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| Publication Number | Publication Date |
|---|---|
| CN215478338U true CN215478338U (en) | 2022-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122044956.XU Active CN215478338U (en) | 2021-08-27 | 2021-08-27 | Receiving tank for pneumatic conveying of fly ash guniting material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113292301A (en) * | 2021-05-28 | 2021-08-24 | 贵州盘江煤电集团有限责任公司 | Fly ash-based guniting material for supporting underground coal mine roadway and preparation method thereof |
-
2021
- 2021-08-27 CN CN202122044956.XU patent/CN215478338U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113292301A (en) * | 2021-05-28 | 2021-08-24 | 贵州盘江煤电集团有限责任公司 | Fly ash-based guniting material for supporting underground coal mine roadway and preparation method thereof |
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