CN202128991U - Vehicular bag-type dust collector for incineration vehicle - Google Patents

Abstract

The utility model relates to a vehicle-mounted bag filter specially used for a mobile incineration vehicle. It mainly solves the technical problem that the traditional bag filter is not suitable for incineration vehicles. The technical scheme of the utility model is: a bag-type dust collector on-board an incineration vehicle, which is a box structure, and is characterized in that a clean room is provided on the upper part of the box body, a dust accumulation drawer is provided on the lower part of the box body, and a dust chamber is in the middle of the box body , filter bag frames are arranged at vertical intervals in the dust room, and the filter bag frames are covered with filter bags. The upper clean room has an air outlet. There is an air bag outside the box, and the compressed air is stored in the air bag through a filter and two connecting control valves. The bottom of the air bag is connected with a water discharge valve through a pipeline. A Venturi tube is placed on the top of the filter bag frame, and the Venturi tube is connected with the clean room. The venturi tube nozzle is provided with a solenoid valve to control the opening and closing of the nozzle. The air bag is connected to the Venturi tube through the pipeline, and the pulse controller is connected to the solenoid valve. . The utility model is mainly used for removing combustion dust, organic highly toxic pollutants, acid gaseous pollutants, mercury, heavy metals and their compounds in incineration vehicles.

Description

Incineration vehicle on-board bag filter

technical field

The utility model relates to a cloth bag dust collector, in particular to a vehicle-mounted cloth bag dust collector specially used for a mobile incineration vehicle.

Background technique

The bag dust collector is an efficient flue gas purification device. Compared with electrostatic precipitators, cyclone dust collectors, Wenlili dust collectors, water curtain dust collectors and other devices, it has obvious advantages. First, the dust removal rate of pollutants is the highest. The second is that there is no secondary pollution, and the third is that the price is moderate. At present, it is widely used in developed countries and has become a key device in the flue gas purification system.

However, the bag filter has been used in fixed locations for a long time since its invention and application, and has never been used in mobile equipment. The reason is that the volume is relatively large, and it needs to occupy a large plane area and height; while the plane area of the mobile device is strictly limited, and the height during the movement is strictly limited by the relevant national regulations. Although the traditional bag filter has been used for a long time, two types of bag filter, vertical and horizontal, have come out. But they all have one thing in common, that is, the volume is relatively large, especially the height is generally above 5m. This determines that the existing high school models of bag filters cannot be used for incineration vehicles.

The mobile incinerator must use a flue gas purification system, and the bag filter is indispensable in the flue gas purification system. Therefore, under the premise of ensuring the flue gas treatment capacity of the bag filter, it is very necessary to develop a new structure bag filter with small volume, low height, large flue gas treatment capacity and high pollutant removal rate. As a result, there are more varieties and wider uses of the bag filter.

Contents of the invention

The purpose of this utility model is to provide a vehicle-mounted bag filter specially used for mobile incineration vehicles, mainly to solve the technical problem that the traditional bag filter is not suitable for incineration vehicles.

The design of the utility model requires that the flue gas treatment capacity must reach 1200m3/min, but the length cannot exceed 2.7m, the width cannot exceed 2.2m, and the height cannot exceed 3m. In addition to the same principle, its mechanism, shell, bracket, filter bag, dust hopper, pulse high-pressure high-air ash cleaning mechanism, clean room, etc. must have a new innovative design, and at the same time, it must have anti-vibration and anti-turbulence performance. Adapt to the transition of incineration under various road conditions.

The technical scheme of the utility model is: a bag-type dust collector on-board an incineration vehicle, which is a box structure, and is characterized in that a clean room is provided on the upper part of the box body, a dust accumulation drawer is provided on the lower part of the box body, and a dust chamber is in the middle of the box body , filter bag frames are arranged at vertical intervals in the dust room, and the filter bag frames are covered with filter bags. The upper clean room has an air outlet. There is an air bag outside the box, and the compressed air is stored in the air bag through a filter and two connecting control valves. The bottom of the air bag is connected with a water discharge valve through a pipeline. A Venturi tube is placed on the top of the filter bag frame, and the Venturi tube is connected with the clean room. The venturi tube nozzle is provided with a solenoid valve to control the opening and closing of the nozzle. The air bag is connected to the Venturi tube through the pipeline, and the pulse controller is connected to the solenoid valve. .

The beneficial technical effects of the utility model are: the processing area is increased by arranging a plurality of filter bags in the dust chamber, the ash can be cleaned conveniently by arranging the ash accumulation drawer, and the external area of the filter bag can be cleaned by high-pressure gas through the peripheral air bag. Ashes to clean up. Part of the particulate matter in the flue gas exists in the flue gas as inorganic ash under the action of thermophoretic force, while heavy metals and their compounds other than mercury are attached to the particulate matter and exist in the flue gas. Mercury exists in the form of liquid or gas. In the flue gas and adsorbed on the particles, dioxin and furan organic highly toxic pollutants are also attached to the particles and exist in the flue gas. The function of the utility model is not only for dust removal, but also for the vast Some heavy metals and their compounds, organic highly toxic pollutants, and liquid or gaseous mercury also have a good removal effect.

Description of drawings

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

In the figure: 1-dust chamber, 2-filter, 3-two-piece control valve, 4-venturi tube, 5-filter bag frame, 6-filter bag, 7-clean room, 8-air outlet, 9- Solenoid valve, 10-air bag, 11-water discharge valve, 12-pulse controller, 13-air inlet, 14-dust drawer.

Detailed ways

Referring to Fig. 1, a kind of incineration vehicle-mounted bag filter has a box structure, and a clean room 7 is arranged on the upper part of the box body, and a dust accumulation drawer 14 is arranged on the lower part of the box body. There are filter bag frames 5 at intervals in the vertical direction. The filter bag frames are covered with filter bags 6. The top of the filter bag frames 5 is fixed on the bottom of the clean room. The clean room on the top is provided with air outlet 8. An air bag 10 is arranged outside the box, and compressed air is stored in the air bag 10 through a filter 2 and two connecting control valves 3, and a water discharge valve 11 is connected to the bottom of the air bag through a pipeline. A Venturi tube 4 is placed on the top of the filter bag frame, and the Venturi tube 4 communicates with the clean room 7. The nozzle of the Venturi tube is provided with a solenoid valve 9 for controlling the opening and closing of the nozzle, and the air bag 10 is connected to the Venturi tube 4 through the pipeline. The pulse controller 12 is connected to the solenoid valve 9 .

When in use, the flue gas comes out of the cooling and cooling device, enters the bag filter from the air inlet 13, and flows to each dust chamber 1. Under the strong draft of the induced draft fan, the flue gas passes through the filter bag 6, and the particles are blocked in the filter bag Outside, a part is attached to the filter material outside the filter bag, and a part of the wind is flying in the flue gas out of the room. The dedusted flue gas entering the filter bag flows through the Venturi tube 4 to the clean room 7, and the (negative pressure) generated by the induced draft fan ) flows out from the outlet under the suction force, and the refined flue gas is discharged through the chimney of the induced draft fan.

When the working resistance of the bag filter increases from the normal value to a certain amount, the pulsed high-pressure air is automatically started to remove the dust outside the filter bag, and most of the removed dust falls into the dust drawer 14, and a part of it is still in the dust with the flue gas. It exists in the flue gas under the action of thermophoretic force and draft force, and the purification effect is shown in Table 1 below.

Table 1: Purification effect of the utility model on pollutants in flue gas

serial number Pollutant name symbol Removal rate% serial number Pollutant name symbol Removal rate% 1 Particles (dust) A 99.9 12 Potassium and its compounds K and K ²⁺ 95 2 Dioxins PCDD _S 76 13 Iron and its compounds Fe and Fe ²⁺ 95 3 Furans PCDF _S 91 14 Mercury and its compounds Hg and Hg ²⁺ 95 4 hydrogen chloride HCI 80 15 Lead and its compounds Pb and Pb ²⁺ 95 5 sulfur dioxide SO ₂ 80 16 Cadmium and its compounds Cd and Cd ²⁺ 95 6 Chlorine sulfide H ₂ S 80 17 Copper and its compounds Cu and Cu ²⁺ 95 7 hydrogen fluoride HF 80 18 Magnesium and its compounds M and Mg ²⁺ 95 8 Cycloaromatic hydrocarbons _PAHS 91 19 Zinc and its compounds Zn and Zn ²⁺ 95 9 Ammonia NH ₃ 70 20 Calcium and its compounds Ca and Ca ²⁺ 95 10 carbon monoxide CO 60 twenty one Chromium and its compounds Cr and Cr ²⁺ 95 11 chlorophenol CP 91 twenty two Manganese and its compounds M and Mn ²⁺ 95

Note: Acidic gaseous pollutants (No. 4 ~ No. 9) have been neutralized and removed twice before entering the bag filter; after entering the bag filter, it is the residual removal rate of these substances. the

Claims (3)

1. the vehicle-mounted sack cleaner of burning car is body structure, it is characterized in that being provided with clean room on casing top; Being provided with the dust stratification drawer at lower box, is the dirt chamber in the middle of the casing, and vertical direction is interval with the filter bag framework in the dirt chamber; The filter bag framework coats filter bag outward, and the filter bag frame roof is fixed on the clean room bottom, above the dust stratification drawer of lower box, is provided with air inlet; Clean room on casing top is provided with air outlet, settles Venturi tube in the filter bag frame roof, and Venturi tube is communicated with clean room.

2. the vehicle-mounted sack cleaner of burning car according to claim 1; It is characterized in that: outside casing, be provided with gas bag; Compressed air connects the part control valve through filter and two and is stored in the gas bag; The Venturi tube mouth of pipe is provided with the magnetic valve that the control mouth of pipe opens and closes, and gas bag connects Venturi tube through pipeline, and pulse control instrument connects magnetic valve.

3. the vehicle-mounted sack cleaner of burning car according to claim 2 is characterized in that: the gas bag bottom is connected to discharging valve through pipeline.

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