CN203108343U - Self-absorption pre-spray coating device - Google Patents

Abstract

The utility model relates to a self-absorption pre-spray coating device, which is characterized in that the bottom end of a hopper is fixed on a supporting seat on the bottom, the supporting seat is fixed on the ground through a tightening piece, a discharging port of the hopper is provided with a rotary discharging valve, a feeding end of the rotary discharging valve is connected with a discharging port of the hopper, a discharging end of the rotary discharging valve is connected with a pipe orifice, i.e. the pipe orifice I of a three-way pipeline through a flange, one pipe orifice, i.e. the pipe orifice II of the three-way pipeline is a free port, a steel wire screening net is arranged in the pipe orifice II, and another pipe orifice, i.e. the pipe orifice III of the three-way pipeline is connected with one pipe orifice, i.e. a feeding port of a double-port conveying pipeline through a flange; the other pipe orifice, i.e. the discharging port of the conveying pipeline is connected with an air inlet pipeline of a dust collector; and the conveying pipeline is also provided with a hand-operated butterfly valve. Compared with the prior art, the self-absorption pre-spray coating device has the advantages of low investment and operation cost, safety and reliability in operation, low noise, fewer malfunctions, flexibility in arrangement and the like.

Description

A kind of self-priming pre-spray equipment

Technical fieldThe utility model relates to the device that is applied to the pre-spray treatment of deduster in a kind of coking by coke oven process.

Background technologyIn the coking field, coke oven can give off big amount temperature height, concentration pernicious gas and dust big, easily diffusion in the process of coalingging, and its major pollutants are dust, tar etc., and these pollutants are contaminated environment not only, and is detrimental to health.At present; the effluent of coke oven will be handled through sack cleaner; and in the flue gas that coke oven is discharged the tar stickum being arranged, this tar can be bonding to the filter bag of deduster, for avoiding tar bonding filter bag; the method that adopts is that filter bag is carried out pre-spray treatment at present; concrete technical scheme is: before dust collection for charging, the mode that malleation blows uniformly sprays surface at filter bag to coke powder; protect filter bag with coke powder, in case tar is stuck with paste filter bag extremely.This pre-spray treatment technology is because the mode of the malleation spraying coke powder that adopts, so must take air blast or roots blower as the spraying source of the gas, source of the gas will link with the dedusting main air blower simultaneously, owing to increased air blast or Roots's motor, and the noise of air blast or roots blower is bigger, fault rate is higher, so from investing to all corresponding increases of operating cost; In addition, the mode that this employing air blast or roots blower blow as spraying source of the gas malleation also exist install and debug loaded down with trivial details, operation inconvenience, shortcoming such as layout is dumb.

Summary of the inventionThe purpose of this utility model is to provide a kind of investment and operating cost of not only reducing, and safe and reliable to operation, noise is low, and fault is few, and simple in structure, and layout is flexible, and self-priming pre-spray equipment is easily installed and debugged in simple operation.

The utility model mainly be with the negative pressure of deduster main air blower as the spraying source of the gas, coke powder inhaled delivers to deduster inside, concrete scheme is as follows:

The utility model mainly includes hopper, bearing, the revolution discharge valve, flange, three-way pipeline, conveyance conduit and Hand-operated butterfly valve, the bottom of described hopper is fixed on the bearing of playing a supporting role its bottom, for example bolting is on the ground by securing member for this bearing, the revolution discharge valve is established in the feed opening position of described hopper, the feed end of this revolution discharge valve links to each other with the feed opening of hopper, the discharge end of described revolution discharge valve is that mouth of pipe I links together by a mouth of pipe of flange and three-way pipeline, in two other mouth of pipe of described three-way pipeline, one of them mouth of pipe is that mouth of pipe II is free mouthful, it is straight-through atmosphere when work, inlet scoop for negative pressure transportation, and the place establishes steel wire spacer in mouth of pipe II, to avoid the bigger material of extraneous volume to be inhaled into conveyance conduit inside, guarantee that the inside of conveyance conduit is unimpeded and carry effect, the another one mouth of pipe that a mouth of pipe that is mouth of pipe III by flange and twoport conveyance conduit is that charging aperture links to each other; Another mouth of pipe of described conveyance conduit is that discharging opening links to each other with the intake stack of deduster; Also be provided with Hand-operated butterfly valve on the above-mentioned conveyance conduit.

The utility model with the negative pressure of deduster main air blower as the spraying source of the gas; coke powder is housed in the hopper; deduster main air blower high-speed cruising when dust collection for charging; the revolution discharger starts; coke powder from hopper inside through revolution discharger feed; coke powder enters three-way pipeline; because the mouth of pipe II of three-way pipeline communicates with atmosphere; under the effect of main air blower negative pressure, coke powder accelerates in three-way pipeline, and enters conveyance conduit by the mouth of pipe III of three-way pipeline; coke powder enters the intake stack of deduster through conveyance conduit then; enter deduster by intake stack, coke powder is attached on the cloth bag, plays the effect of protection filter bag.Can make pre-spraying discontinuous operation by regulating the revolution discharge valve according to the actual production demand, general every interval work in 15 minutes 5 minutes is 0.27 cubic metre so per hour spray the coke powder consumption in advance, and an ash bucket coke powder can use 9 hours, per 8 hours is one class, and coke powder is changed in per tour one time.

The utility model compared with prior art has following advantage:

1, reduce investment and operating cost, safe and reliable to operation, noise is low, and fault is few;

2, simple in structure, layout is flexible, and simple operation is installed and the debugging facility.

Description of drawingsFig. 1 is the structural representation sketch of the utility model duty.

The specific embodimentAs shown in Figure 1, the bottom of hopper 1 is fixed on the bearing 2 of playing a supporting role its bottom, this bearing fixes on the ground by securing member, revolution discharge valve 3 is established in the feed opening position of hopper, the feed end of this revolution discharge valve links to each other with the feed opening of hopper by flange 4, the discharge end of revolution discharge valve is that mouth of pipe I 7-1 links together by a mouth of pipe of flange 5 and three-way pipeline 6, in two other mouth of pipe of three-way pipeline, one of them mouth of pipe is that mouth of pipe II 7-2 is free mouthful, it is straight-through atmosphere when work, inlet scoop for negative pressure transportation, and the place establishes steel wire spacer 9 in mouth of pipe II, to avoid the bigger material of extraneous volume to be inhaled into conveyance conduit inside, guarantee the unimpeded and conveying effect in inside of conveyance conduit, the mouth of pipe that the another one mouth of pipe is mouth of pipe III 7-3 by flange 8 and twoport conveyance conduit 10 is that charging aperture links to each other, and enters into conveyance conduit inside to avoid the bigger material of volume, guarantees that the inside of conveyance conduit is unimpeded and carries effect; Another of conveyance conduit is that discharging opening links to each other with the intake stack of deduster 11 with the mouth of pipe; Also be provided with Hand-operated butterfly valve 12 on the conveyance conduit.

Claims (1)

1. self-priming pre-spray equipment, comprise hopper, bearing, the revolution discharge valve, flange, three-way pipeline, conveyance conduit and Hand-operated butterfly valve, it is characterized in that: the bottom of described hopper is fixed on the bearing of its bottom, this bearing fixes on the ground by securing member, the revolution discharge valve is established in the feed opening position of described hopper, the feed end of this revolution discharge valve links to each other with the feed opening of hopper, the discharge end of described revolution discharge valve is that mouth of pipe I links together by a mouth of pipe of flange and three-way pipeline, in two other mouth of pipe of described three-way pipeline, one of them mouth of pipe is that mouth of pipe II is free mouthful, and the place establishes steel wire spacer in mouth of pipe II, and the mouth of pipe that the another one mouth of pipe is mouth of pipe III by flange and twoport conveyance conduit is that charging aperture links to each other; Another mouth of pipe of described conveyance conduit is that discharging opening links to each other with the intake stack of deduster; Also be provided with Hand-operated butterfly valve on the above-mentioned conveyance conduit.

Images