CN206508706U - A kind of dust removal installation for dust workshop - Google Patents

Abstract

The utility model proposes a kind of dust removal installation for dust workshop, including dust arrester, airway tube and blast pipe, the dust arrester is connected by the airway tube with the blast pipe, and the blast pipe is provided with vacuum machine, and dry fog case is provided between the airway tube and the blast pipe.Chalk dust removing is gone by dry fog case, makes emission compliance.The utility model removes dust using dry fog dedusting technology, the atomizer especially researched and developed is atomized twice to liquid, i.e. effervescent atomization and pneumatic nebulization so that be less than 2.5 μm of droplet in whole dry fog case full of diameter, dust removing effects are good, can effectively remove PM2.5.

Description

A dust removal facility for a dust workshop

technical field

The utility model belongs to the technical field of environmental protection equipment, in particular to a dust removal facility for a dust workshop.

Background technique

In industrial and mining enterprises, the control of dust has always been a major problem. According to statistics from the Ministry of Health, pneumoconiosis has become the first occupational disease in my country, accounting for 80% of the total occupational diseases. Dust in the air has different particle sizes and distribution states. The main target of dust suppression and treatment is dust particles below 150 μm, especially respirable dust particles with a particle size of less than 10 μm. Although it accounts for less than 1% of the total weight of the material, it is suspended in the air for a long time and is difficult to settle, and sometimes even floats for hundreds of kilometers. It is particularly harmful to the human body and is the main cause of pneumoconiosis and air pollution. root causes, seriously threatening human health and life.

A large number of workshops in various industries will generate dust during production. The existing dust removal facilities collect dust through dust collectors and then discharge it to the atmosphere. The dust discharged to the atmosphere will inevitably pollute the environment.

Utility model content

The purpose of this utility model is to propose a dust removal facility for a dust workshop, which uses dry fog dust suppression technology to remove dust and make the discharge reach the standard.

The technical solution of the utility model is achieved in the following way: a dust removal facility for a dust workshop, comprising a dust collector, an air guide pipe and an exhaust pipe, the dust collector is connected to the exhaust pipe through the air guide pipe, A vacuum machine is arranged on the exhaust pipe, and a dry fog box is arranged between the air guide pipe and the exhaust pipe. The dust is removed through the dry fog box to make the emission meet the standard.

Preferably, the dry fog box includes a box body, the box body is provided with an air inlet and an air outlet, and the top of the box body is provided with a number of atomizing nozzles, the atomizing nozzles include a nozzle body, and the nozzle body is provided with There are water inlet pipes, air inlet pipes, mixing chambers, water injection holes and air injection holes, the two ends of the mixing chamber are respectively connected with the water inlet pipes and the water injection holes, and the air inlet pipes are connected with the air injection holes And communicate with the mixing chamber through the through hole.

The working principle of the atomizing nozzle is: the pressure in the inlet pipe of the atomizing nozzle is greater than the pressure of the water inlet pipe and the pressure of the mixing chamber, and the compressed space in the inlet pipe enters the mixing chamber to mix with water and form air bubbles. Accelerate, deform and expand during the flow process, squeeze the liquid into a filament at the water spray orifice, and within a very short distance from the water spray orifice, due to the increase in the internal and external pressure difference, it will expand rapidly or even explode, and the liquid filament will Exploded into finer droplets; the high-speed airflow from the jet hole forms a high relative velocity with the droplets, resulting in great friction, and the airflow has a strong tearing and shearing effect on the droplets. The droplets are thus atomized twice to form droplets with smaller diameters, and at the same time speed up the running speed of the droplets.

Preferably, in order to achieve better atomization effect and spray speed, the diameter of the water spray hole is 1-2 mm, and the diameter of the air spray hole is 1-3 mm.

Preferably, the included angle between the axis of the air spray hole and the axis of the water spray hole is 5-20°, so as to obtain a better atomization effect and a faster spray speed.

Preferably, the number of the air injection holes is 2 to 6, and they are evenly distributed in the circumferential direction.

Preferably, a baffle is provided in the box near the end of the air outlet, and the baffle is separated from the bottom of the box. This structure prevents the dust from overflowing directly from the air outlet.

Preferably, a sewage discharge pipe is provided at the bottom of the box, and a gate valve is provided on the sewage discharge pipe.

The utility model uses the dry fog dedusting technology to remove dust, and the specially developed atomizing nozzle atomizes the liquid twice, that is, bubble atomization and pneumatic atomization, so that the entire dry fog box is filled with droplets with a diameter of less than 2.5 μm, and the dust is removed Good effect, can effectively remove PM2.5.

Description of drawings

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

Fig. 2 is the structural representation of dry fog box;

Fig. 3 is the schematic diagram of the structure of the atomizing nozzle;

FIG. 4 is a schematic bottom view of FIG. 3 .

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figure 1, the dust removal facility for the dust workshop includes a dust collector 1, an air guide pipe 2, a dry fog box 3 and an exhaust pipe 5. The dust collector 1 passes through the air guide pipe 2 and the dry fog box 3, and the dry fog Box 3 is connected with exhaust pipe 5, and vacuum machine 4 is arranged on exhaust pipe 5.

The dry fog box 3 shown in Figure 2 to Figure 4 includes a box body 31, the two ends of the box body 31 are provided with an air inlet 33 and an air outlet 34, the air inlet 33 is connected to the air guide pipe 2, and the air outlet 34 is connected to Exhaust pipe 5, a partition 35 is provided near the end of the air outlet 34 in the casing 31, the partition 35 is separated from the bottom of the casing 31, the top of the casing 31 is provided with some atomizing nozzles 32, and the bottom of the casing 31 Be provided with blowdown pipe 36, this blowdown pipe 36 is provided with gate valve 37; Atomizing nozzle 32 comprises nozzle body 321, is provided with water inlet pipe 322, four air inlet pipes 323, mixing chamber 325, spray nozzle body 321 Water hole 327 and four jet holes 326, the two ends of mixing chamber 325 are connected with water inlet pipe 322 and water jet hole 327 respectively, and air inlet pipe 323 links to each other with jet hole 326 and communicates with mixing chamber 325 by through hole 324, spray The diameter of water hole 327 is 1.2mm, and the diameter of air jet hole 326 is 1.8mm, and the included angle θ between the axis of air jet hole 326 and water jet hole 327 is 9 °, and the required water and gas of atomizing nozzle 32 are by prior art The dry fog machine provided.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (10)

1. a kind of dust removal installation for dust workshop, including dust arrester, airway tube and blast pipe, the dust arrester are led by described Tracheae is connected with the blast pipe, and the blast pipe is provided with vacuum machine, it is characterised in that：The airway tube and the blast pipe it Between be provided with dry fog case.

2. it is used for the dust removal installation of dust workshop as claimed in claim 1, it is characterised in that：The dry fog case includes casing, The casing is provided with air inlet and gas outlet, and the top of the casing is provided with some atomizers, and the atomizer includes sprayer body, Be provided with inlet channel, admission line, mixing chamber, hole for water spraying and fumarole in the sprayer body, the two ends of the mixing chamber respectively with The inlet channel is connected with hole for water spraying, and the admission line is connected with the fumarole and connected by through hole and the mixing chamber It is logical.

3. it is used for the dust removal installation of dust workshop as claimed in claim 2, it is characterised in that：A diameter of the 1 of the hole for water spraying ~2mm, a diameter of 1~3mm of the fumarole.

4. it is used for the dust removal installation of dust workshop as claimed in claim 3, it is characterised in that：The hole for water spraying it is a diameter of 1.2mm, a diameter of 1.8mm of the fumarole.

5. it is used for the dust removal installation of dust workshop as claimed in claim 3, it is characterised in that：The jet axially bored line with it is described Angle between water spray axially bored line is 5~20 °.

6. it is used for the dust removal installation of dust workshop as claimed in claim 5, it is characterised in that：The jet axially bored line with it is described Angle between water spray axially bored line is 9 °.

7. it is used for the dust removal installation of dust workshop as claimed in claim 5, it is characterised in that：The quantity of the fumarole is 2 ~6, and ring is uniform.

8. it is used for the dust removal installation of dust workshop as claimed in claim 7, it is characterised in that：The quantity of the fumarole is 4 It is individual.

9. it is used for the dust removal installation of dust workshop as claimed in claim 2, it is characterised in that：Go out in the casing described in Gas port one end is provided with dividing plate, and the bottom of the dividing plate and the casing is separated by.

10. it is used for the dust removal installation of dust workshop as claimed in claim 2, it is characterised in that：The bottom of the casing is provided with Blow-off pipe, the blow-off pipe is provided with gate valve.