CN108479273A - Cleaner and dust pelletizing system - Google Patents

Abstract

The invention relates to the technical field of flue gas purification devices, in particular to a dust removal device and a dust removal system. Dust removal equipment, including air inlet device, cyclone dust collector, condensation tank, first heat exchange medium pipeline, second heat exchange medium pipeline, absorption heat pump unit and water pipe; The other end of the inner tube communicates with the air inlet of the cyclone dust collector; the cyclone dust collector is located inside the condensation box, and the first heat exchange medium pipeline passes through the condensation box to cool the cyclone dust collector. One end of the medium pipeline communicates with the generator of the absorption heat pump unit, and the other end of the first heat exchange medium pipeline communicates with the evaporator of the absorption heat pump unit; the second heat exchange medium pipeline is used for heating the Venturi tube; The water pipe communicates with the throat of the Venturi tube. The invention alleviates the phenomenon that the particles are discharged from the outlet of the purified flue gas of the cyclone dust collector, and improves the dust removal efficiency.

Description

Dust removal equipment and dust removal system

technical field

The invention relates to the technical field of flue gas purification devices, in particular to a dust removal device and a dust removal system.

Background technique

In industrial operations, a large amount of dusty gas is often produced, such as mechanical cutting or crushing of solid materials or grinding process of grinder, coal, steel, chemical industry, beneficiation, sintering, refractory materials, casting, cement, glass and other workshops During the production process, especially in the production of ceramic products (such as ceramic tiles), the ceramic spray drying tower will produce a large amount of dusty gas, which will fly everywhere, not only pollute the air in the workshop and the outdoor atmosphere, but also make the long-term work More workers suffer from pneumoconiosis, which seriously endangers the health of workers. Therefore, it is necessary to dedust the dust-containing gas.

Cyclone dust collector is a widely used dust removal equipment. It has the advantages of simple structure, low operating cost and initial investment, high dust removal efficiency, strong adaptability to polluted gases, and simple operation and management. However, the cyclone dust collector is a kind of dust removal equipment that separates particles by centrifugal force. It has a good dust removal efficiency for particles with large particle sizes, and has a low removal efficiency for micron or submicron particles.

In order to overcome the above defects, the existing dust removal equipment combines the wet dust collector with the cyclone dust collector, sprays liquid droplets at the end of the wet dust collector to capture the particles in the gas, and then goes to the cyclone dust collector to remove dust and dehydrate through centrifugal force. This method will cause the water mist to carry part of the particles to be discharged from the purified flue gas outlet of the cyclone dust collector, so the dust removal efficiency is low.

Contents of the invention

The purpose of the present invention is to provide a dust removal device to solve the technical problem of low dust removal efficiency existing in the prior art because water mist will carry part of the particulate matter to be discharged from the outlet of the cyclone dust collector for the purified flue gas.

The purpose of the present invention is also to provide a dust removal system to solve the technical problem of low dust removal efficiency existing in the prior art due to water mist carrying some particulate matter and being discharged from the purified flue gas outlet of the cyclone dust collector.

Based on the first purpose above, the present invention provides a dust removal device, including an air inlet device, a cyclone dust collector, a condensation tank, a first heat exchange medium pipeline, a second heat exchange medium pipeline, an absorption heat pump unit and a water pipe;

The air inlet device is provided with a flue gas inlet for the flue gas to enter, the inside of the air inlet device is provided with a Venturi tube, one end of the Venturi tube communicates with the flue gas inlet, and the Venturi tube The other end communicates with the air inlet of the cyclone dust collector;

The cyclone dust collector is located inside the condensation box, the first heat exchange medium pipeline passes through the condensation box for cooling the cyclone dust collector, and the first heat exchange medium pipeline One end of the pipeline communicates with the generator of the absorption heat pump unit, and the other end of the first heat exchange medium pipeline communicates with the evaporator of the absorption heat pump unit;

One end of the second heat exchange medium pipeline communicates with the condenser of the absorption heat pump unit, and the other end of the second heat exchange medium pipeline communicates with the absorber of the absorption heat pump unit; Two heat exchange medium pipelines are used to heat the Venturi tube;

The water pipe communicates with the throat of the Venturi tube.

In some embodiments, the air inlet device includes a heating box and an air inlet pipe, the Venturi pipe is located inside the heating box, and one end of the air inlet pipe communicates with the other end of the Venturi pipe , the other end of the air inlet pipe communicates with the air inlet of the cyclone dust collector.

In some embodiments, a water storage tank is also included, one end of the water pipe communicates with the water storage tank, and the other end of the water pipe communicates with the throat of the Venturi tube.

In some embodiments, a particle collection tank is also included, and the particle collection tank is in communication with the ash hopper of the cyclone dust collector.

In some embodiments, an air outlet pipe is also included, and the air outlet pipe communicates with the purified flue gas outlet of the cyclone dust collector.

In some embodiments, the air outlet pipe is provided with a suction fan.

In some embodiments, the flue gas inlet is provided with a valve.

Based on the second objective above, the present invention also provides a dust removal system, comprising a plurality of the above dust removal equipment.

Compared with prior art, the beneficial effect of the present invention is:

The dust removal equipment provided by the present invention includes an air inlet device, a cyclone dust collector, a condensation box, a first heat exchange medium pipeline, a second heat exchange medium pipeline, an absorption heat pump unit and a water pipe; the air inlet device is provided with a The flue gas inlet for the flue gas to enter, the inside of the air inlet device is provided with a Venturi tube, one end of the Venturi tube communicates with the flue gas inlet, and the other end of the Venturi tube communicates with the cyclone dust collector The air inlet of the device is connected; the cyclone dust collector is located inside the condensation box, and the first heat exchange medium pipeline passes through the condensation box for cooling the cyclone dust collector. One end of the first heat exchange medium pipeline communicates with the generator of the absorption heat pump unit, and the other end of the first heat exchange medium pipeline communicates with the evaporator of the absorption heat pump unit; One end of the heat medium pipeline communicates with the condenser of the absorption heat pump unit, and the other end of the second heat exchange medium pipeline communicates with the absorber of the absorption heat pump unit; the second heat exchange medium pipe The road is used to heat the Venturi tube; the water pipe communicates with the throat of the Venturi tube.

Based on this structure, the dust removal equipment provided by the present invention uses water vapor to mix with the flue gas, and cools the cyclone dust collector so that the steam is condensed to form larger droplets. Under the action of centrifugal force, the particulate matter in the flue gas The liquid droplets are separated, which effectively alleviates the phenomenon that the particulate matter is discharged from the purified flue gas outlet of the cyclone dust collector, and improves the dust removal efficiency. During implementation, the water pipe is connected with the external water source, and the flue gas is passed from the flue gas inlet into the Venturi tube. At the throat of the Venturi tube, the increase of the flue gas flow rate leads to a decrease in pressure, so that the water in the water pipe has a pressure difference between the inside and outside. It flows into the Venturi tube under the action of the cyclone dust collector; when the cyclone dust collector is started, the heat transfer medium in the first heat transfer medium pipeline absorbs the heat inside the condensation box and cools the cyclone dust collector. Under the action of the absorption heat pump unit, The temperature of the second heat exchange medium pipeline increases, the temperature of the Venturi tube increases, and the internal pressure of the Venturi tube decreases, so that the water entering the Venturi tube is vaporized to form water vapor, and the water vapor captures the smoke in the flue gas. The mixture of particulate matter, flue gas and water vapor enters the cyclone dust collector from the air inlet and undergoes centrifugal separation. Since the heat exchange medium in the first heat exchange medium pipeline absorbs the heat inside the condensation box, the cyclone dust collector is cooled. As a result, the steam is condensed to form larger droplets, and under the action of centrifugal force, the particulate matter in the flue gas is separated with the droplets.

Further, the air inlet device includes a heating box and an air inlet pipe, the Venturi tube is located inside the heating box, one end of the air inlet pipe communicates with the other end of the Venturi tube, and the air inlet pipe The other end of the air duct communicates with the air inlet of the cyclone dust collector.

It should be understood that the heating box can be an ordinary shell or box, providing a relatively closed space for the Venturi tube and the second heat exchange medium pipeline, which helps the Venturi tube absorb the second heat exchange medium pipeline of heat. The heating box can also be a box with a heating function, so as to further heat the Venturi tube.

Further, a water storage tank is also included, one end of the water pipe communicates with the water storage tank, and the other end of the water pipe communicates with the throat of the Venturi tube.

By setting the water storage tank, a water source can be provided, which is convenient for inputting water into the Venturi tube to generate water vapor.

Further, it also includes a particle collection tank, and the particle collection tank is in communication with the ash hopper of the cyclone dust collector.

By setting the particle collection pool, it is convenient to collect the liquid droplets containing particles, so as to facilitate subsequent centralized treatment and effectively protect the working environment.

Further, an air outlet pipe is also included, and the air outlet pipe communicates with the purified flue gas outlet of the cyclone dust collector.

Further, the air outlet pipe is provided with a suction fan.

By setting the air outlet pipe and exhaust fan, this method facilitates the discharge of the purified flue gas and improves the purification efficiency.

Further, the flue gas inlet is provided with a valve.

By setting the valve, the intake volume of the flue gas can be controlled, and it is also convenient for the maintenance of the equipment.

The dust removal system provided by the present invention uses a plurality of dust removal devices provided by the present invention, which can effectively alleviate the phenomenon that particles are discharged from the outlet of the purified flue gas of the cyclone dust collector, and improve the dust removal efficiency.

In summary, the present invention has the above-mentioned many advantages and practical value, and there is no similar method publicly published or used in similar products, and it is indeed an innovation, which has produced better practical effects and has a wide range of industrial applications. value.

The following will be described in detail in conjunction with the accompanying drawings.

Description of drawings

In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the specific implementation or description of the prior art. Obviously, the accompanying drawings in the following description The drawings show some implementations of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative work.

Figure 1 is a schematic structural view of the dust removal equipment provided by Embodiment 1 of the present invention;

Fig. 2 is a schematic structural diagram of the dust removal equipment provided by Embodiment 2 of the present invention.

Icons: 101-first heat exchange medium pipeline; 102-second heat exchange medium pipeline; 103-condensation tank; 104-cyclone dust collector; 105-absorption heat pump unit; 106-heating box; 107-air inlet pipe ; 108-water pipe; 109-water storage tank; 111-venturi pipe; 112-particle collection tank; 113-air outlet pipe;

Detailed ways

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

In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear ", etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, Constructed and operative in a particular orientation and therefore are not to be construed as limitations of the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise specified and limited, terms such as "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a A detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediary, and it may be an internal communication between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

Embodiment one

Referring to Fig. 1, the direction of the arrow in Fig. 1 indicates the direction in which the flue gas enters. This embodiment provides a dust removal device, including an air inlet device, a cyclone dust collector 104, a condensation tank 103, a first heat exchange medium pipeline 101, a second heat exchange medium pipeline 102, an absorption heat pump unit 105 and a water pipe 108 The air inlet device is provided with a flue gas inlet for the flue gas to enter, and the inside of the air inlet device is provided with a Venturi tube 111, one end of the Venturi tube 111 communicates with the flue gas inlet, and the other end of the Venturi tube 111 is connected to the cyclone dust collector. The air inlet of the device 104 is connected; the cyclone dust collector 104 is located inside the condensation box 103, and the first heat exchange medium pipeline 101 passes through the condensation box 103 for cooling the cyclone dust collector 104, and the first heat exchange medium pipe One end of the pipeline 101 communicates with the generator of the absorption heat pump unit 105, the other end of the first heat exchange medium pipeline 101 communicates with the evaporator of the absorption heat pump unit 105; one end of the second heat exchange medium pipeline 102 communicates with the absorption heat pump unit 105 The condenser of the heat pump unit 105 is connected, and the other end of the second heat exchange medium pipeline 102 is communicated with the absorber of the absorption heat pump unit 105; the second heat exchange medium pipeline 102 is used to heat the Venturi tube 111; the water pipe 108 is connected to the The throat of the Venturi 111 communicates.

Based on this structure, the dust removal equipment provided in this embodiment uses water vapor to mix with the flue gas, and cools the cyclone dust collector 104, so that the steam is condensed to form larger droplets. Under the action of centrifugal force, the dust in the flue gas The particles are separated along with the liquid droplets, thereby effectively alleviating the phenomenon that the particles are discharged from the outlet of the purified flue gas of the cyclone dust collector 104 and improving the dust removal efficiency. During implementation, the water pipe 108 is connected with the external water source, and the flue gas is passed into the Venturi tube 111 from the flue gas inlet. Flow into the Venturi tube 111 under the effect of the internal and external pressure difference; start the cyclone dust collector 104, the heat exchange medium in the first heat exchange medium pipeline 101 absorbs the heat inside the condensation box 103, and the cyclone dust collector 104 is cooled, Under the action of the absorption heat pump unit 105, the temperature of the second heat exchange medium pipeline 102 increases, so that the temperature of the Venturi tube 111 increases, and the internal pressure of the Venturi tube 111 decreases, so that the The water vaporizes to form water vapor, and the water vapor captures the particulate matter in the flue gas, and the mixture of flue gas and water vapor enters the cyclone dust collector 104 from the air inlet for centrifugal separation. The heat medium absorbs the heat inside the condensation box 103 and cools the cyclone dust collector 104, so that the steam is condensed to form larger droplets, and the particles in the flue gas are separated with the droplets under the action of centrifugal force.

It should be noted that the first heat exchange medium in the first heat exchange medium pipeline 101 and the second heat exchange medium in the second heat exchange medium pipeline 102 are currently common brines, such as water, chlorine, etc. Sodium chloride or calcium chloride saline solution, aqueous solution of organic compounds such as ethylene glycol or glycerin, etc.

In some embodiments, the air inlet device includes a heating box 106 and an air inlet pipe 107, the Venturi pipe 111 is located inside the heating box 106, and one end of the air inlet pipe 107 communicates with the other end of the Venturi pipe 111, and the air inlet pipe The other end of 107 communicates with the air inlet of cyclone dust collector 104 .

It should be understood that the heating box 106 can be an ordinary shell or box, providing a relatively closed space for the venturi tube 111 and the second heat exchange medium pipeline 102, which helps the venturi tube 111 to absorb the second heat exchange medium. The heat of the heat medium pipeline 102. The heating box 106 can also be a box with a heating function, so as to further heat the Venturi tube 111 .

In some embodiments, a water storage tank 109 is also included, one end of the water pipe 108 communicates with the water storage tank 109 , and the other end of the water pipe 108 communicates with the throat of the Venturi tube 111 .

By setting the water storage tank 109, a water source can be provided, so that water can be input into the Venturi tube 111 to generate water vapor.

In some embodiments, a particle collection tank 112 is also included, and the particle collection tank 112 communicates with the ash hopper of the cyclone dust collector 104 .

By setting the particulate matter collection tank 112, it is convenient to collect the liquid droplets containing particulate matter, so as to facilitate the subsequent centralized treatment and effectively protect the working environment.

In some embodiments, an air outlet pipe 113 is also included, and the air outlet pipe 113 communicates with the purified flue gas outlet of the cyclone dust collector 104 .

In some embodiments, the outlet duct 113 is provided with an exhaust fan 114 .

By arranging the air outlet pipe 113 and the exhaust fan 114, this way facilitates the discharge of the purified flue gas and improves the purification efficiency.

Embodiment two

Referring to Figure 2, this embodiment also provides a dust removal device, the dust removal device of this embodiment is an improvement on the basis of Embodiment 1, and the technical solutions of Embodiment 1 also belong to this embodiment , and will not be described again here. The same components use the same reference numerals as in the first embodiment, and reference is made to the description of the first embodiment.

In some embodiments, the flue gas inlet is provided with a valve 115 .

By setting the valve 115, the intake volume of the flue gas can be controlled, and it is also convenient to overhaul the equipment.

Embodiment Three

This embodiment provides a dust removal system, including a plurality of dust removal devices provided in Embodiment 1 of the present invention.

The dust removal system provided in this embodiment can effectively alleviate the discharge of particulate matter from the outlet of the purified flue gas of the cyclone dust collector 104 due to the use of multiple dust removal devices provided in this embodiment, and improve the dust removal efficiency.

It should be noted that the dust removal system provided in this embodiment can also use the dust removal equipment provided in Embodiment 2 of the present invention.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.

Claims (8)

1. a kind of cleaner, which is characterized in that including air-intake device, cyclone dust collectors, cooling cylinder, the first heat transferring medium pipe Road, the second heat transferring medium pipeline, absorption type heat pump assembly and water pipe；

The air-intake device is provided with the gas inlet for entering for flue gas, and the air-intake device is internally provided with venturi Pipe, one end of the Venturi tube are connected to the gas inlet, the other end of the Venturi tube and the cyclone dust collectors Air inlet connection；

The cyclone dust collectors are located at the inside of the cooling cylinder, and the first heat transferring medium pipeline is worn from the cooling cylinder It crosses, for cooling down to the cyclone dust collectors, one end of the first heat transferring medium pipeline and the absorption type heat pump assembly Generator is connected to, and the other end of the first heat transferring medium pipeline is connected to the evaporator of the absorption type heat pump assembly；

One end of the second heat transferring medium pipeline is connected to the condenser of the absorption type heat pump assembly, and second heat exchange is situated between The other end of matter pipeline is connected to the absorber of the absorption type heat pump assembly；The second heat transferring medium pipeline is used for described Venturi tube heats；

The water pipe is connected to the throat of the Venturi tube.

2. cleaner according to claim 1, which is characterized in that the air-intake device includes heater box and blast pipe, The Venturi tube is located at the inside of the heater box, and one end of the blast pipe is connected to the other end of the Venturi tube, The other end of the blast pipe is connected to the air inlet of the cyclone dust collectors.

3. cleaner according to claim 1, which is characterized in that further include water tank, one end of the water pipe and institute Water tank connection is stated, the other end of the water pipe is connected to the throat of the Venturi tube.

4. cleaner according to claim 1, which is characterized in that further include particulate collection pond, the particulate matter is received Ji Chi is connected to the ash bucket of the cyclone dust collectors.

5. cleaner according to claim 1, which is characterized in that further include discharge pipe, the discharge pipe and the rotation The purifying smoke outlet of wind deduster.

6. cleaner according to claim 5, which is characterized in that the discharge pipe is provided with exhaust fan.

7. cleaner according to any one of claim 1 to 6, which is characterized in that the gas inlet is provided with valve Door.

8. a kind of dust pelletizing system, which is characterized in that including multiple cleaners as described in any one of claim 1 to 7.