CN2547706Y

CN2547706Y - Belt-conveying dust-removing apparatus at fall-head-position

Info

Publication number: CN2547706Y
Application number: CN 02273234
Authority: CN
Inventors: 冀兆明
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-05-28
Filing date: 2002-05-28
Publication date: 2003-04-30
Anticipated expiration: 2012-05-28

Abstract

The utility model belongs to the environment-friendly dust-removing device field and in particular relates to a bulk material belt-conveying dust-removing apparatus at fall-head-position; the utility model is characterized by comprising a bulk material launder (1), a powder gas return flow channel (2), a scroll casing (3) and a sealing device (4); an inlet of the powder gas return flow channel (2) is communicated with an outlet of the upper part of the scroll casing (3); an outlet of the powder gas return flow channel (2) is communicated with the bulk material launder (1); the sealing device (4) is arranged on the upper part of a belt (11); an inlet of the sealing device (4) is communicated with an outlet of the bulk material launder (1); an outlet of the sealing device (4) is connected with an inlet of the lower end of the scroll casing (3).

Description

The belt transportation drop point dirt device that disappears

Affiliated technical field

The utility model belongs to environmental protection dusting equipment field, particularly a kind of loose unpacked material employed drop point in belt transportation process dirt device field that disappears.

The background technology field

In order to solve the dust that produces at drop point in the belt transporter shipping bulk material process, adopted mostly as schemes such as electrostatic precipitator, the moistening dedusting of spray or bag-type dusts in the past.These dust collection methods all need to be equipped with induced draft fan, so just must consume a large amount of electric energy; And when the discharging dust, also can cause secondary pollution; When concrete constructing operation, also need take new soil these equipment is installed in addition.From practical experience, these method one-time investments are all bigger, the operation manage and protect and maintenance cost also very high.

Summary of the invention

It is a kind of simple in structure that technical problem to be solved in the utility model is to provide, and it is low to consume energy, and it is little to take up room, and invests for a short time, and working service is the belt transportation drop point dirt device that disappears easily.

Technical solution of the present utility model can realize according to following mode:

The utility model contains: loose unpacked material chute, dusty gas return flow line, spiral case, sealing arrangement; The inlet of described dusty gas return flow line communicates with the outlet of spiral case top; The outlet of described dusty gas return flow line communicates with the loose unpacked material chute; Described sealing arrangement places the top of belt; The inlet of sealing arrangement communicates with the outlet of loose unpacked material chute; The outlet of sealing arrangement and the bottom of spiral case inlet join.

The utility model can be furnished with the soft curtain of dust suction in described sealing arrangement and spiral case.

The utility model also is furnished with dust concentration and measures probe, automatically controlled part, water supply line, is assigned in the electromagnetic valve in the water supply line; Nozzle in the described water supply line places respectively in loose unpacked material chute and the spiral case; Described dust concentration is measured probe and is electrically connected with the input end of automatically controlled part; The mouth of described automatically controlled part is electrically connected with electromagnetic valve.

Also can be furnished with guiding device in the spiral case described in the utility model.Automatically controlled part described in the utility model contains: master cock, digital instrument, relay control part, constant current source, accurate mu balanced circuit, fixed ampllitude oscillating circuit, excitation samples, temperature compensating, detection linearization, linear amplification, electric current and voltage conversion.

The utility model is simple in structure, and it is low to consume energy, and it is little to take up room, and invests for a short time, and working service is convenient, the dust removing effects ideal.Use the utility model can make dust pollution be reduced to (2～10) mg/ cubic meter; Reached GB16248-1996 " respirable dust hygienic standard in the air of workplace ".

Description of drawings

Fig. 1 is the utility model integral structure scheme drawing;

Fig. 2 is the utility model electric control part parallel circuit functional block diagram;

Fig. 3 is the utility model electric control part parallel circuit schematic diagram;

The specific embodiment

As shown in the figure, the utility model contains: loose unpacked material chute 1, dusty gas return flow line 2, spiral case 3, sealing arrangement 4; The inlet of described dusty gas return flow line 2 communicates with the outlet of spiral case 3 tops; The outlet of described dusty gas return flow line 2 communicates with loose unpacked material chute 1; Described sealing arrangement 4 places the top of belt 11; The inlet of sealing arrangement 4 communicates with the outlet of loose unpacked material chute 1; The bottom inlet of the outlet of sealing arrangement 4 and spiral case 3 joins; In described sealing arrangement 4 and spiral case 3, is furnished with the soft curtain 5 of dust suction.The utility model also is furnished with dust concentration and measures probe 6, automatically controlled part 7, water supply line 13, is assigned in the electromagnetic valve 12 in the water supply line 13; Nozzle 9 in the described water supply line 13 places respectively in loose unpacked material chute 1 and the spiral case 3; Described dust concentration is measured probe and is electrically connected with the input end of automatically controlled part 7; The mouth of described automatically controlled part 7 is electrically connected with electromagnetic valve 12; Also is furnished with guiding device 8 in the spiral case 3 described in the utility model; Described automatically controlled part 7 contains: master cock, digital instrument, relay control part, constant current source, accurate mu balanced circuit, fixed ampllitude oscillating circuit, excitation samples, temperature compensating, detection linearization, linear amplification, electric current and voltage conversion.

Material from belt transportation drop point upstream has produced a large amount of dust in dropping process, but simultaneously, based on material whereabouts shock pressure, make the corresponding pressure that dusty gas is flowed that produced between the bottom of spiral case 3 and the return flow line 2, dusty gas is realized a kind of closed loop circulation by means of external condition at spiral case 3, return flow line 2, loose unpacked material chute 1.

Sealing arrangement 4 in the utility model can effectively stop and impacts dust excessive at spiral case 3 both sides and afterbody place; In order to strengthen dust removing effects the soft curtain 5 of the dust suction with dust suction effect has been installed in material chute 1 and spiral case 3; There is quite a few dust that splashes to be adsorbed by the soft curtain 5 of dust suction.In order to improve the poly-effect of parent between dust granules, in material chute 1 and spiral case 3, disposed several ceramic spraynozzles 9, under its effect, can improve the relative humidity of dust air, but can not make the water ratio of material that great raising is arranged.The work of pottery spraynozzle 9 is subjected to automatically controlled part 7 controls.It is opened or closes according to the dust concentration of detected dust air.Line strainer 10 can make ceramic spraynozzle 9 unlikely obstructions.The dust concentration that is installed in the spiral case 3 is measured probe 6, when dust concentration reaches certain setting value in the spiral case 3, export electric signal respectively to automatically controlled part 7, signal is carried out in automatically controlled part 7 outputs, opens or close the function that has realized automatic guidance pottery spraynozzle 9 thereby carry out electromagnetic valve 12.

Claims

1, a kind of belt transportation drop point dirt device that disappears is characterized in that: loose unpacked material chute (1), dusty gas return flow line (2), spiral case (3), sealing arrangement (4); The inlet of described dusty gas return flow line (2) communicates with the outlet of spiral case 3 tops; The outlet of described dusty gas return flow line (2) communicates with loose unpacked material chute (1); Described sealing arrangement (4) places the top of belt (11); The inlet of sealing arrangement (4) communicates with the outlet of loose unpacked material chute (1); The bottom inlet of the outlet of sealing arrangement (4) and spiral case (3) joins.

2, the belt transportation drop point according to claim 1 dirt device that disappears is characterized in that: be furnished with the soft curtain of dust suction (5) in described sealing arrangement (4) and spiral case (3).

3, the belt transportation drop point according to claim 1 and 2 dirt device that disappears is characterized in that: also be furnished with dust concentration and measure probe, automatically controlled part (7), water supply line (13), be assigned in the electromagnetic valve (12) in the water supply line (13); Nozzle (9) in the described water supply line (13) places respectively in loose unpacked material chute (1) and the spiral case (3); Described dust concentration is measured probe and is electrically connected with the input end of automatically controlled part (7); The mouth of described automatically controlled part (7) is electrically connected with electromagnetic valve (12).

4, the belt transportation drop point according to claim 1 and 2 dirt device that disappears is characterized in that: be furnished with guiding device (8) in the described spiral case (3).

5, the belt transportation drop point according to claim 3 dirt device that disappears, it is characterized in that: described automatically controlled part (7) contains: master cock, digital instrument, relay control part, constant current source, accurate mu balanced circuit, fixed ampllitude oscillating circuit, excitation samples, temperature compensating, detection linearization, linear amplification, electric current and voltage conversion.

6, the belt transportation drop point according to claim 3 dirt device that disappears is characterized in that: be furnished with guiding device (8) in the described spiral case (3).