CN101857145B - Rotating Screens for Pneumatic Waste Conveying Systems - Google Patents

Abstract

The invention discloses a rotary screen for a pneumatic garbage conveying system, which comprises a motor, a barrel-shaped shell with a downward opening, a main shaft and a filter drum, wherein an air outlet is formed in the upper part of the barrel-shaped shell, the main shaft is installed in the middle of the upper end face of the barrel-shaped shell, the filter drum is fixedly connected to the lower end of the main shaft, the filter drum is of a grid type structure matched with the barrel-shaped shell in size, the filter drum is located right below the barrel-shaped shell, a circular air blowing groove is formed in the position, close to the filter drum, of the barrel-shaped shell, and the circular air blowing groove is communicated to the outside of the barrel-shaped shell through an air inlet pipe communicated with the upper surface of. This equipment can shunt rubbish and air effectively, avoids paper or plastic bag etc. lighter rubbish to pass through air conduit and get into air extractor group or dust remover, through set up the ring shape air blast groove in the place that barrel-shaped casing is close with the filter drum, can produce the air current in this department through wind-force, blows away tiny debris, avoids piling up the normal operation that influences whole equipment to raise the efficiency.

Description

Rotating Screens for Pneumatic Waste Conveying Systems

technical field

The invention relates to a device for separating air flow from garbage, in particular to a rotating screen used in a pneumatic garbage conveying system.

Background technique

The pneumatic garbage conveying system is a modern garbage collection system. The system uses the exhaust fan to generate negative pressure in the system, and then uses the negative pressure to generate strong airflow. Through the pre-laid conveying pipe network, all kinds of garbage placed on the ground The garbage collected at the delivery port is transported to the central garbage collection station. The garbage passes through the separator to separate the garbage from the air flow. After the garbage falls by gravity, it is pressed into the sealed garbage container by the compactor. After the garbage container full of garbage is loaded Sent to the waste treatment site (landfill or waste incineration plant, etc.), on the other hand, the gas transporting the waste is discharged after dust removal and deodorization. The entire process is preset and automatically controlled by a computer program. The garbage collection process is always in a sealed state, so as to prevent secondary pollution and improve the urban sanitation environment.

In the pneumatic garbage conveying system, it is very important to effectively separate the garbage from the air flow. If the garbage cannot be effectively separated from the air flow, it will affect the garbage collection capacity and efficiency of the system.

Contents of the invention

The object of the present invention is to address the above problems and propose a rotating screen for separating the garbage from the air flow in the pneumatic garbage conveying system. The garbage and particles on the top of the garbage separator are separated from the air to prevent such garbage and particles, such as paper or plastic bags, from entering the exhaust fan unit or dust collector through the air duct, which will affect the garbage collection capacity and efficiency of the system. At the same time, the design of the filter drum can effectively bounce away the garbage and particles, preventing them from gradually accumulating in the filter drum and affecting the filtration efficiency, so as to ensure that the high collection efficiency of the entire set of pneumatic waste conveying system will not be affected by the need for regular cleaning of the filter drum Influence.

The technical solution of the present invention is: a rotating screen used in a pneumatic garbage conveying system, including a motor, a barrel-shaped shell with an opening facing downwards, a main shaft, and a filter drum. The upper part of the barrel-shaped shell is provided with an air outlet. The main shaft is installed in the middle of the upper end face of the barrel-shaped shell, and the filter drum is fixedly connected to the lower end of the main shaft. The filter drum is a grid structure matching the size of the barrel-shaped shell. The filter drum is located in the barrel-shaped shell. The lower part of the body is provided with an annular blowing slot at the place where the barrel-shaped shell is close to the filter drum, and the annular blowing slot is communicated to the outside of the barrel-shaped shell through the air inlet pipe communicated above it. The circular blowing groove has two air inlet pipes communicating with it.

The filter drum rotates at a high speed, and the garbage and particles are bounced away by the filter drum, so that the garbage and particles will not enter the exhaust unit of the pneumatic garbage conveying system or seal the dust collector through the air outlet through the air duct.

The filter drum bounces away the garbage and particles so that the garbage and particles will not stick to the filter drum, and the filter drum realizes the function of automatic cleaning.

The garbage and particles separated from the filter drum float in the air, and when the pneumatic garbage conveying system stops, they will naturally fall to the bottom of the garbage separator of the system, enter the compactor and push into the garbage container.

A muffler is installed at the end of the air inlet pipe outside the barrel-shaped casing.

The motor is fixed on the outer wall of the casing, and the motor drives the main shaft through a belt, and a protective cover is provided outside the belt.

The outside of the main shaft is provided with a matching main shaft sleeve, the upper end of the main shaft sleeve is fixedly connected to the middle part of the upper end surface of the barrel-shaped housing, and the main shaft is installed in the main shaft sleeve through bearings.

The notch of the annular air blowing groove is facing downwards to the upper part of the filter drum, and there is a gap between the notch and the filter drum.

The side wall of the barrel-shaped housing is provided with an inspection port.

Beneficial effects of the present invention:

The rotating screen used in the pneumatic garbage conveying system in the present invention separates lighter garbage such as paper and plastic bags in the garbage through a high-speed rotating grille filter to ensure that the system can be more efficient when collecting garbage and will not Lighter garbage such as paper and plastic bags enter the exhaust fan unit or seal the dust collector through the air duct. Lighter garbage such as paper and plastic bags are separated from the filter drum, and will naturally fall to the compactor when the system stops.

The rotary screen used in the pneumatic garbage conveying system can generate airflow through the wind force at the place where the barrel-shaped shell is close to the filter drum, and can blow away the sundries and avoid some small particles in the garbage. Garbage accumulates here, affecting the normal operation of the entire equipment, thereby improving efficiency, and the filter drum will rotate more smoothly.

The rotating screen used for the pneumatic garbage conveying system is equipped with a muffler on the outer end of the air inlet pipe, which can fully reduce the noise generated when the equipment is running.

Description of drawings

Figure 1 is a schematic diagram of the longitudinal section structure of the rotating screen used in the pneumatic waste conveying system

Figure 2 is a schematic structural diagram of the top view of the rotating screen used in the pneumatic waste conveying system

Detailed ways

See Figure 1-Figure 2, in the figure 1. Motor, 2. Filter drum, 3. Air inlet pipe, 4. Muffler, 5. Annular blowing groove, 6. Main shaft, 7. Main shaft sleeve, 8. Barrel shell , 9. Belt, 10. Protective cover, 11. Inspection port, 12. Air outlet.

Embodiment: A rotating screen for a pneumatic waste conveying system, including a motor, a barrel-shaped shell with an opening facing downwards, a main shaft, and a filter drum. The upper part of the barrel-shaped shell is provided with an air outlet, and its characteristics are: the The main shaft is installed in the middle of the upper end face of the barrel-shaped shell, and the filter drum is fixedly connected to the lower end of the main shaft. The filter drum is a grid structure matching the size of the barrel-shaped shell. The filter drum is located in the barrel-shaped shell. The lower part of the body is provided with an annular blowing slot at the place where the barrel-shaped shell is close to the filter drum, and the annular blowing slot is communicated to the outside of the barrel-shaped shell through the air inlet pipe communicated above it.

The end of the air inlet pipe outside the barrel-shaped housing is equipped with a muffler, which can reduce noise.

The motor is fixed on the outer wall of the casing, and the motor drives the main shaft through a belt, and a protective cover is provided outside the belt to improve the safety of the equipment.

The outside of the main shaft is provided with a matching main shaft sleeve, the upper end of the main shaft sleeve is fixedly connected to the middle part of the upper end surface of the barrel-shaped housing, and the main shaft is installed in the main shaft sleeve through bearings.

The notch of the annular air blowing groove is facing downwards to the upper part of the filter drum, and there is a gap between the notch and the filter drum.

The side wall of the barrel-shaped housing is provided with an inspection port for maintenance when there is an internal failure.

After the equipment is installed in the pneumatic waste conveying system, due to the negative pressure inside the system, the air outside the equipment will enter the system through the muffler, the air inlet pipe, and the annular blowing groove. The trash is blown away, avoiding the formation of deposits.

The filter drum rotates at a high speed, and the garbage and particles are bounced away by the filter drum, so that the garbage and particles will not enter the exhaust unit of the pneumatic garbage conveying system or seal the dust collector through the air outlet through the air duct.

The garbage and particles separated from the filter drum float in the air, and when the pneumatic garbage conveying system stops, they will naturally fall to the bottom of the garbage separator of the system, enter the compactor and push into the garbage container.

Claims (6)

1. rotary screen that is used for pneumatic rubbish conveying system; Comprise electrical motor, downward opening barrel-shaped housing, main shaft, filter drum; Described barrel-shaped housing top is provided with air outlet, it is characterized in that: described main shaft is installed in the middle part, upper surface of barrel-shaped housing, and described filter drum is fixedly connected on the lower end of this main shaft; This filter drum is the grid type structure of mating with barrel-shaped housing size; Filter drum is positioned at the positive bottom of barrel-shaped housing, is provided with the annular arrangement blowing slot at barrel-shaped housing and the approaching place of filter drum, and this annular arrangement blowing slot is communicated to barrel-shaped outside through the blast pipe that is communicated with above it;

Said filter drum high speed rotating, rubbish and particle are filtered bulging bullet and walk, and therefore rubbish and particle can not got into the exhausting unit of this pneumatic rubbish conveying system or seal dust exhaustor through air duct by air outlet; The notch of described annular blowing slot is down over against the top of filter drum, and is gapped between this notch and the filter drum.

2. the rotary screen that is used for pneumatic rubbish conveying system according to claim 1 is characterized in that: described blast pipe is equipped with silencer in the termination of barrel-shaped outside.

3. the rotary screen that is used for pneumatic rubbish conveying system according to claim 1 is characterized in that: described electrical motor is fixed on the housing outer wall, and electrical motor is given spindle through belt, and described belt outside is provided with protective cover.

4. the rotary screen that is used for pneumatic rubbish conveying system according to claim 1; It is characterized in that: described main shaft outside is provided with the main brass with its coupling; The upper end of this main brass is fixedly connected on the middle part of barrel-shaped housing upper surface, and described main shaft passes through bearing installation in main brass.

5. the rotary screen that is used for pneumatic rubbish conveying system according to claim 1 is characterized in that: the sidewall of described barrel-shaped housing is provided with access hole.

6. the rotary screen that is used for pneumatic rubbish conveying system according to claim 1 is characterized in that: said quilt is treated in the compacting machine that falls to this system of nature when pneumatic rubbish conveying system pauses at a distance from rubbish and particle outside filter drum.

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