CN205526678U - Powder malleation loading attachment - Google Patents

Abstract

The utility model discloses a powder positive pressure feeding device, which mainly solves the problem that the vacuum feeding and conveying device in the prior art is easy to block in the suction pipe and the feeding pipe, and the conveying height is low, which cannot meet the needs of large silos. demand, and it is easy to pollute the operating space due to dust. The powder positive pressure feeding device includes an air intake pipe and pipeline, a pneumatic double diaphragm pump, and a two-position five-way solenoid valve; the pneumatic double diaphragm pump includes two pneumatic diaphragm pumps, and the five interfaces of the two-position five-way solenoid valve are connected to The intake pipe, the air inlet and the air outlet of the pneumatic diaphragm pump are connected; the driving end of the pneumatic double diaphragm pump is connected with the inlet pipe through a pipe; the feed port and the discharge port of the pneumatic double diaphragm pump are connected with delivery pipes. Through the above scheme, the utility model achieves the purpose of not blocking the pipeline, having a high conveying height, and not polluting the operation space, and has high practical value and popularization value.

Description

Powder positive pressure feeding device

technical field

The utility model relates to the field of powder delivery, in particular to a powder positive pressure feeding device.

Background technique

The light powder has the characteristics of powder, light weight, dry and easy to flow; the light powder with a bulk density of 0.1-0.8g/cm3 adopts a vacuum feeding and conveying device; the vacuum feeding and conveying device is a vacuum suction It is a conveying equipment for conveying granular and powdery materials. It uses the air pressure difference between the vacuum and the ambient space to form the gas flow in the pipeline and drive the powdery materials to move, thus completing the powder conveying. Now it is widely used in chemical industry, pharmaceutical, food, metallurgy , building materials, agricultural and sideline and other light and heavy industries.

However, when using a vacuum feeding conveying device to transport light powder, the light powder is easily blocked in the suction pipe and feeding pipe, and the conveying height of the vacuum feeding device is low. For large silos, the vacuum feeding conveying It cannot meet the needs; vacuum feeding and conveying can also easily cause dust of light powder, pollute the operation space, and cause a hidden danger of dust explosion.

Utility model content

The problem to be solved by the utility model is that the vacuum feeding and conveying device is easy to block in the suction pipe and the feeding pipe, and the conveying height is low, which cannot meet the needs of large silos, and is easy to pollute the operation space due to dust.

In order to solve the above problems, the utility model provides the following technical solutions:

The powder positive pressure feeding device includes an air intake pipe and pipeline, a pneumatic double diaphragm pump, and a two-position five-way solenoid valve; The air pipe, the air inlet and the air outlet of the pneumatic diaphragm pump are connected; the driving end of the pneumatic double diaphragm pump is connected with the inlet pipe through a pipe;

Specifically, a manual ball valve is provided on the pipeline between the two-position five-way solenoid valve and the intake pipe, and on the pipeline between the pneumatic double-diaphragm pump and the intake pipe.

Specifically, an air filter decompression valve is provided on the pipeline between the two-position five-way solenoid valve and the intake pipe, and on the pipeline between the pneumatic double-diaphragm pump and the intake pipe.

Specifically, an anti-leakage ball valve is provided on the pipeline between the air filter decompression valve and the pneumatic double-diaphragm pump.

Further, the pneumatic double-diaphragm pump includes pressure sensors respectively arranged at the air inlet and the air outlet; the output end of the pressure sensor is connected to a processor, and the control output end of the processor is connected to the signal input end of the two-position five-way solenoid valve.

Compared with the prior art, the utility model has the following beneficial effects: the gas enters the driving end of the pneumatic double-diaphragm pump and the two-position five-way solenoid valve respectively through the intake pipe; the gas entering the driving end of the pneumatic double-diaphragm pump is used to start the pneumatic double-diaphragm pump Diaphragm pump: The pressure sensor measures the pressure at the inlet or outlet of the pneumatic diaphragm pump in real time, and sends the signal to the processor. The processor sends the control signal to the two-position five-way solenoid valve, and the two-position five-way solenoid valve opens the corresponding valve according to the signal. The interface is used to transfer the light powder from the feed port to the discharge port; the utility model is a fully sealed connection, which avoids the situation of dust flying around in the production workshop, reduces air pollution and waste of raw materials; powder materials are transported in closed management , can avoid the operator from contacting the powder as little as possible; especially for some toxic and harmful powders, to ensure personal safety; the gas path of the gas and light powder is separated, and the gas can be further purified and dried separately to avoid the deliquescence of the powder. It is difficult to transport the pneumatic double-diaphragm pump; it is light and can be easily moved and used anywhere; it can be used immediately without installation and debugging.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a control block diagram of the utility model.

In the above drawings, the names of components corresponding to the reference signs are as follows:

1-intake pipe, 2-pneumatic double diaphragm pump, 3-two-position five-way solenoid valve, 4-pneumatic diaphragm pump, 5-inlet, 6-outlet, 7-delivery pipe, 8-manual ball valve, 9 - Air filter pressure reducing valve, 10 - Anti-leakage ball valve, 11 - Processor.

detailed description

The utility model will be further described below in conjunction with the accompanying drawings and examples. The implementation of the utility model includes but not limited to the following examples.

Example 1

As shown in Figure 1, the powder positive pressure feeding device includes an air inlet pipe 1 and a pipeline, a pneumatic double diaphragm pump 2, and a two-position five-way solenoid valve 3; the pneumatic double-diaphragm pump 2 includes two pneumatic diaphragm pumps 4, two-position five-way The five interfaces of the electromagnetic valve 3 communicate with the air intake pipe 1, the air inlet and the air outlet of the pneumatic diaphragm pump 4 respectively through pipelines; the driving end of the pneumatic double diaphragm pump 2 communicates with the air intake pipe 1 through pipelines; Both the feed port 5 and the discharge port 6 are connected with a delivery pipe 7; on the pipeline between the two-position five-way solenoid valve 3 and the intake pipe 1, on the pipeline between the pneumatic double-diaphragm pump 2 and the intake pipe 1, the There is an air filter pressure reducing valve 9 and a manual ball valve 8; the pipeline between the air filter pressure reducing valve 9 and the pneumatic double diaphragm pump 2 is provided with an anti-leakage ball valve 10 .

Wherein, the positions of the air filter decompression valve, the manual ball valve 8, and the anti-leakage ball valve 10 can be set according to the needs of the matter; an air motor for air intake can be installed on the intake pipe 1 to control the intake speed; the utility model can use compressed air or other inert gases.

Example 2

As shown in Figure 2, the difference between this embodiment and Embodiment 1 is that the pneumatic double-diaphragm pump 2 includes pressure sensors that are respectively arranged at the air inlet and the air outlet; the output end of the pressure sensor is connected with a processor 11, and the processor The control output end of 11 is connected with the signal input end of the two-position five-way solenoid valve 3; the signal collected by the pressure sensor controls the opening and closing of the corresponding interface of the two-position five-way solenoid valve 3 to realize automatic control and make the use of the utility model more convenient. Convenience and higher degree of automation.

As shown in Figure 1 and Figure 2, when Embodiment 1 and Embodiment 2 are in use, the gas enters the driving end of the pneumatic double-diaphragm pump 2 and the two-position five-way solenoid valve 3 through the intake pipe 1; enters the pneumatic double-diaphragm pump 2 The gas at the driving end of the pneumatic double-diaphragm pump 2 is used to start the pneumatic double-diaphragm pump 2; the pressure sensor measures the pressure at the inlet or outlet of the pneumatic diaphragm pump 4 in real time, and sends the signal to the processor 11, and the processor 11 sends the control signal to the two-position five-way electromagnetic Valve 3, two-position five-way solenoid valve 3 opens the corresponding interface according to the signal, and transmits the light powder from the feed port 5 to the discharge port 6; when the light powder is not fed into the feed port 5, it can be cleaned by gas. Double diaphragm pump 2.

In the utility model, the gas path of gas and light powder is separated, and the gas pressure can be set according to the fluidity difference of the powder; the powder with small bulk density and easy flow can be set with a lower fluidization pressure, which can save energy consumption The purpose is to reduce the load of the air release component at the same time; the air supply pressure of the air motor can be set according to the conveying volume and conveying height; during the powder conveying process, the compressed gas is conveyed to the utility model, so that the powder is in a fluidized state. On the one hand, the blockage of the pipeline is avoided, on the other hand, the input of compressed gas increases the conveying height of the powder; the utility model adopts positive pressure continuous conveying, the device is well sealed, and there is no dust leakage; the solid powder material can only be kept in a semi-flowing state. , so that it will not be compressed into a solid block in the pump cavity, resulting in delivery failure and damage to the pump; therefore, the ordinary double-diaphragm pump used to deliver liquids cannot be used for solid dry powder delivery; the utility model adds two During each cycle of the pneumatic diaphragm pump 4, the position five-way solenoid valve 3 will synchronously introduce compressed air (or other inert gas) into the chamber of the pneumatic diaphragm pump 4 according to a certain time sequence, so that the pneumatic diaphragm pump in the powder 4 Keep flowing during delivery.

The utility model is small in size and does not take up space, and is extremely convenient to install. The discharge port 6 of the pneumatic double-diaphragm pump 2 can be connected with the inlet of other equipment with a hose, or a hard tube; the feed port 5 of the pneumatic double-diaphragm pump 2 Under the action of gas, the self-absorbing powder is output in a positive pressure state and enters the airtight equipment, and a small amount of gas is discharged through the air release component of the pneumatic double diaphragm pump 2.

The utility model is a fully sealed connection, avoiding dust flying around in the production workshop, reducing air pollution and waste of raw materials; powder materials are transported in closed management, which can prevent operators from contacting powder materials as little as possible; especially for Some poisonous and harmful powders ensure personal safety; the gas path of gas and light powder is separated, and the gas can be further purified and dried separately to avoid the difficulty of powder deliquescence caused by pneumatic double diaphragm pump 2; it is light and can be moved anywhere conveniently Use; ready to use, free of installation and debugging.

The cost of using other compressed gas to drive the pneumatic double diaphragm pump 2 is relatively low; it can be used separately, drive the pneumatic double diaphragm pump 2 using compressed air, and use other gases that meet the requirements, such as nitrogen, argon, etc., to drive the gas that separates the powder. Ordinary compressed air can also be used.

After testing, when the utility model is used to transport powdery, light, dry and easy-flowing powders with a bulk density of 0.1-0.8g/cm3, the maximum transport capacity can reach 6000kg/h, and the maximum transport height can reach 15 meters.

According to above-mentioned embodiment, just can realize the utility model well. It is worth noting that, based on the premise of the above-mentioned structural design, in order to solve the same technical problem, even if some insubstantial changes or embellishments are made on the utility model, the essence of the technical solution adopted is still the same as that of the utility model. same, so it should also be within the protection scope of the present utility model.

Claims (5)

1. a powder malleation feeding device, including air inlet pipe (1) and pipeline, it is characterised in that: also wrap Include Pneumatic double diaphragm pump (2), two-position-five-way solenoid valve (3)；Pneumatic double diaphragm pump (2) includes two gas Dynamic membrane pump (4), five interfaces of two-position-five-way solenoid valve (3) by pipeline respectively with air inlet pipe (1), The air inlet of pneumatic diaphragm pump (4) connects with gas outlet；The drive end of Pneumatic double diaphragm pump (2) is by pipe Road connects with air inlet pipe (1)；Charging aperture (5) and the discharging opening (6) of Pneumatic double diaphragm pump (2) all connect It is connected to conveying pipe (7).

Powder malleation feeding device the most according to claim 1, it is characterised in that: two-position five-way electromagnetism On pipeline between valve (3) and air inlet pipe (1), between Pneumatic double diaphragm pump (2) and air inlet pipe (1) Pipeline on be equipped with manual ball valve (8).

Powder malleation feeding device the most according to claim 2, it is characterised in that: two-position five-way electromagnetism On pipeline between valve (3) and air inlet pipe (1), between Pneumatic double diaphragm pump (2) and air inlet pipe (1) Pipeline on be equipped with air filtration air relief valve (9).

Powder malleation feeding device the most according to claim 3, it is characterised in that: air filtration is reduced pressure Pipeline between valve (9) and Pneumatic double diaphragm pump (2) is provided with Leakproof spherical valve (10).

5. according to the powder malleation feeding device described in any one of claim 1-4, it is characterised in that: pneumatic Twin-diaphragm pump (2) includes the pressure transducer being separately positioned on air inlet and gas outlet；Pressure transducer defeated Go out to hold connection to have processor (11), the control output end of processor (11) and two-position-five-way solenoid valve (3) Signal input part connect.