CN210171134U

CN210171134U - Portable flue gas desulfurization and denitrification device

Info

Publication number: CN210171134U
Application number: CN201822232385.0U
Authority: CN
Inventors: Jian Luo; 罗坚; Jinsheng Liu; 刘金生
Original assignee: TIANJIN BINHAI ENVIROCHEM ENGINEERING AND TECHNOLOGIES Inc
Current assignee: TIANJIN BINHAI ENVIROCHEM ENGINEERING AND TECHNOLOGIES Inc
Priority date: 2018-12-28
Filing date: 2018-12-28
Publication date: 2020-03-24
Anticipated expiration: 2028-12-28

Abstract

The utility model relates to a portable flue gas desulfurization and denitrification device, including top cap, adsorption tank, absorption cage, base and absorption frame, coaxial arrangement has the base on the absorption frame, base and top cap pass through flange mounting at the upper and lower both ends of adsorption tank, the lower part of base is provided with the air inlet, and the upper end of top cap is provided with the gas vent, the upper and lower interval horizontal hinge is equipped with the pivot in the absorption tank, and the pivot is by motor drive, and a pair of circular revolving plate frame is all installed radially to the coaxial radial in the pivot, and eight absorption cages are installed to radial equipartition between two circular revolving plate frames, and the absorption cage is arranged between circular revolving plate frame according to the transmission form from the centre of a circle to the circumference, the absorption cage is screen cloth column structure, and the lateral wall of absorption cage can be opened, and the; the adsorption inserted block surrounds the adsorption particles through the superfine metal grid mesh to form, the utility model discloses simple structure, dismantlement change convenient, SOx/NOx control effectual, and shift easily.

Description

Portable flue gas desulfurization and denitrification device

Technical Field

The utility model belongs to flue gas desulfurization denitration treatment field relates to flue gas desulfurization denitration device technique, especially a portable flue gas desulfurization denitration device.

Background

The development of industries such as chemical industry is accompanied with the continuous consumption of energy, wherein the consumption of coal and fuel oil is the largest. Taking coal as an example, a certain amount of sulfur dioxide, nitrogen oxide and the like can be generated in the combustion process, if the flue gas is directly discharged into the air without being treated, the flue gas and the moisture in the air form acid rain after contacting, the respiratory health of people is harmed, vegetation can be damaged, and serious consequences are caused. In the chemical industry, the coking industry mainly uses coal as a raw material, and belongs to the traditional industries with high energy consumption, high emission and high pollution. With the continuous improvement of environmental awareness of people, the coking industry needs to perform desulfurization and denitrification treatment on waste generated by the coking industry, such as flue gas containing sulfide and nitrogen oxide, while continuously optimizing and adjusting the production flow and the process structure so as to meet the requirement of environmental emission.

In industrial operation, the basic operation of adsorption is often encountered, and particularly, the current method for treating the pollution gas is mainly activated carbon adsorption and desulfurization and denitrification particle adsorption, so that the pollution gas is inevitably adsorbed by using an adsorption column, however, the biggest problem of the adsorption operation is discontinuity, namely, after the adsorption column is used for a period of time, the adsorption column always needs to be backflushed, and adsorbed substances are flushed away from the adsorption column, so that the adsorbent is regenerated. This drawback would require extensive manpower and material resources to perform these adsorbent regeneration operations.

The adsorption process can be divided into two stages, the first stage is the outer surface adsorption which occurs after the adsorbate passes around the adsorbent particles from the main flow of the fluid to the surfaces of the particles, and the second stage is the inner surface adsorption in which the adsorbate molecules enter the interior of the particles without being adsorbed from the outer surfaces of the particles. The molecular adsorption process is carried out in the sequence of outer surface adsorption and inner surface adsorption, and the desorption (desorption or regeneration) is carried out reversely. In the actual adsorption application process, the main factors influencing the adsorption effect are temperature, pressure, flow velocity of fluid, height/diameter ratio of the adsorption column and the like. The structural design of the adsorption column has direct influence on the flow velocity of fluid in the adsorption process and the height/diameter ratio of the adsorption column, and the height of the adsorption column has a minimum value for ensuring the adsorption effect when the amount of the adsorbent is constant. The adsorption column is too low, gas or liquid just enters the adsorption column, conversion occurs, and the gas or liquid flows out from the outlet very quickly, so that the adsorption capacity of the adsorbent is very small or zero, and the adsorption separation of fluid cannot be realized. If the cross-sectional area of the adsorption column is reduced, the height is increased, which is advantageous for increasing the adsorption capacity, but the flow rate of the fluid is increased, the residence time of the gas or liquid in the adsorption column is reduced, and when the residence time is reduced to be less than the adsorption time, the adsorption capacity is sharply reduced. Therefore, the design of the adsorption column should select a reasonable height/diameter ratio to achieve the best adsorption effect. In view of the above, the adsorption column generally has a certain height, so that the adsorption separation device is large in size. In the prior art, the aspect ratio is large, especially in the field of wastewater treatment, the length of an adsorption column is generally 1.5-2 meters, and the long column is extremely inconvenient in transportation, installation, filling and discharging, so that a solution is urgently needed.

The following patent documents relevant to the present application are found by search, and specific disclosures are as follows:

1. an adsorption column (CN101091862B) for exhaust gas purification, having a barrel-shaped housing for containing a solid stationary adsorbent, an inlet for the exhaust gas to be purified to enter the housing and an outlet for the purified exhaust gas to exit outside the housing, said inlets and outlets each being provided with a ball valve, the circumferential wall of the housing having, in each case in the area of the housing bottom and the housing cover, a recess for receiving the ball valve at the exhaust gas inlet and the ball valve at the exhaust gas outlet.

2. An adsorption column (CN201299987) comprises a column body, wherein an upper distributor and a lower distributor are respectively arranged in the column body from top to bottom, the main bodies of the upper distributor and the lower distributor are round steel plates, steel pipes are uniformly distributed on the steel plates, small holes are uniformly distributed on the steel plates and the steel pipes, at least two feed inlets are arranged on two sides of the upper part of the column body, and at least two discharge outlets are arranged on two sides of the lower part of the column body.

3. An adsorption column (203916411U) comprises an adsorption column body, wherein a core is arranged inside the adsorption column body, and the adsorption column is characterized by further comprising a microwave heating magnetron, one end of the microwave heating magnetron is arranged in the core, and the other end of the microwave heating magnetron extends out of the outer wall of the adsorption column body.

Through the contrast of technical characteristics, above-mentioned patent literature of disclosing with the utility model discloses a technical structure is inequality, can not influence the creativity and the novelty of the utility model application.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome prior art's weak point, provide a simple structure, dismantle change convenient, the effectual, easy portable flue gas desulfurization denitrification facility of transfer of SOx/NOx control.

The utility model provides a its technical problem take following technical scheme to realize:

a portable flue gas desulfurization and denitrification device comprises a top cover, an adsorption tank, adsorption cages, a base and an adsorption frame, wherein the base is coaxially arranged on the adsorption frame, the base and the top cover are arranged at the upper end and the lower end of the adsorption tank through flanges, an air inlet is formed in the lower part of the base, an air outlet is formed in the upper end of the top cover, a rotating shaft is horizontally hinged in the adsorption tank at an upper interval and a lower interval, the rotating shaft is driven by a motor, a pair of circular rotating plate frames are coaxially and radially arranged on the rotating shaft, eight adsorption cages are radially and uniformly arranged between the two circular rotating plate frames, the adsorption cages are arranged between the circular rotating plate frames according to an emission shape from the circle center to the circumference, each adsorption cage is of a screen mesh structure, the side walls of each adsorption cage can; the adsorption insert is formed by surrounding adsorption particles through an ultrafine metal grid mesh.

Moreover, a dustproof net is coaxially sleeved outside the outer surface of the adsorption cage.

And, still be provided with a condenser coil in the base, condenser coil's water inlet is for being located condenser coil center port, and the water inlet is connected with outside cold source intercommunication through a hose, condenser coil's delivery port is then stretched out by the perpendicular base lateral wall of pipe of condenser coil outer lane and is connected with outside cold source intercommunication.

And a fan is arranged at the air outlet at the top end of the top cover.

And a supporting plate is arranged at the lower part of the adsorption frame, an air pump is arranged on the supporting plate, and the air pump is connected with the air inlet through a connecting pipe.

Moreover, four corners of the bottom of the adsorption frame are provided with universal wheels.

Moreover, the adsorption particles are desulfurization and denitrification particles.

And the desulfurization and denitrification particles are cylinders, the cross sections of the desulfurization and denitrification particles are formed by sequentially connecting and enclosing a plurality of arc-shaped flaps end to end, through holes are formed in the axial direction and the radial direction of the cylinders at intervals, and the particle materials are at least one of calcium hydroxide, calcium carbonate, magnesium hydroxide, magnesium carbonate, sodium carbonate or sodium bicarbonate or are mixed with sodium hypochlorite or potassium permanganate.

The utility model has the advantages that:

1. the utility model embeds the adaptive adsorption embedded block in the adsorption cage; the adsorption insert surrounds the adsorption particles through the superfine metal grid mesh to form, the adsorption cage is changed in angle with the smoke sucked by the base through rotation of the rotating shaft, so that the adsorption efficiency of the smoke is realized through rotation, labor force for repeatedly replacing a single adsorption column is greatly saved through a rotating mode, and adsorption is more thorough and uniform.

2. The utility model discloses at the coaxial overcoat dust screen of the surface of absorption cage for it is cleaner to adsorb more smoothly and final combustion gas, blocks the dust on the dust screen, realizes first flue gas filtration.

2. The utility model discloses top exhaust port department at the top cap is provided with a fan for circulation of air in the adsorption column is more accelerated, improves the work efficiency of whole device.

3. The utility model discloses be provided with a condensing coil in the base, realize the cooling of flue gas, prolonged the life of each component part of device, the influence that the absorption efficiency of the too high temperature of wall descends to the adsorption granules in the adsorption cage simultaneously.

4. The utility model discloses an adsorption frame the adsorption frame lower part is provided with a backup pad, on this backup pad was arranged in to the air pump, all be provided with the universal wheel in adsorption frame bottom four corners simultaneously, utilized the design of adsorption frame for whole device becomes a complete whole, makes the device remove more convenient.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments, which are illustrative, not restrictive, and the scope of the invention should not be limited thereto.

A portable flue gas desulfurization and denitrification device comprises a top cover 2, an adsorption tank 6, adsorption cages 5, a base 8 and an adsorption frame 15, wherein the base is coaxially arranged on the adsorption frame, the base and the top cover are arranged at the upper end and the lower end of the adsorption tank through flanges, an air inlet 11 is formed in the lower portion of the base, an air outlet 3 is formed in the upper end of the top cover, a rotating shaft 7 is horizontally hinged in the adsorption tank at an upper interval and a lower interval, the rotating shaft is driven by a motor 1, a pair of circular rotating plate frames are coaxially and radially arranged on the rotating shaft, eight adsorption cages are radially and uniformly arranged between the two circular rotating plate frames, the adsorption cages are arranged between the circular rotating plate frames according to an emission shape from the circle center to the circumference, the adsorption cages are of a screen mesh structure, the side walls of the adsorption cages can; the adsorption insert is formed by surrounding adsorption particles through an ultrafine metal grid mesh.

In the specific implementation of the utility model, in order to prevent the flue gas from entering the device to be overheated, which affects the normal adsorption state and the adsorption efficiency of the device, even the device is damaged due to the overheating of the flue gas, a condensing coil is also arranged in the base, a water inlet 9 of the condensing coil is positioned at the central port of the condensing coil, the water inlet is communicated and connected with an external cold source through a hose, the water outlet 10 of the condensing coil extends out from the outermost pipe of the condensing coil to be vertical to the side wall of the base, and also communicates with an external cold source, provided by conventional devices of the prior art, which, therefore, the cold water of the condensing coil flows outwards from the center, the density between the coils at the center of the condensing coil is less than that of the coils at the outer ring part of the condensing coil, the inner and outer dense and sparse devices enable the entering flue gas with higher temperature to be rapidly cooled.

The utility model discloses an in the concrete implementation, in order to make the circulation of air in the adsorption tank more accelerate, improve the work efficiency of whole device, the exhaust vent department on the top of top cap is provided with a fan 4.

The utility model discloses an in the concrete implementation, in order to make gas get into this device more fast, still through being provided with air pump 12 on the connecting pipe 13 of air inlet and exhanst gas port equipment to in order to make the transfer that the integrated device can be more convenient the adsorption holder lower part is provided with a backup pad 14, on this backup pad was arranged in to the air pump, all was provided with universal wheel 16 in adsorption holder bottom four corners simultaneously.

The adsorption particles in the adsorption blocks are desulfurization and denitrification particles which are cylinders, and the cross section of the desulfurization and denitrification particles is formed by sequentially connecting and enclosing a plurality of arc-shaped flaps end to end; through holes are arranged in the axial direction and the radial direction of the cylinder at intervals; the particle material is at least one of calcium hydroxide, calcium carbonate, magnesium hydroxide, magnesium carbonate, sodium carbonate or sodium bicarbonate, or is mixed with sodium hypochlorite or potassium permanganate, so that the contact area between the flue gas and the particle surface can be increased, and the desulfurization efficiency is improved. The particle extruder is directly molded by the existing particle extruder, and has high production efficiency and low production cost. The middle of the particles can be provided with through holes, so that the contact area is further increased, and the desulfurization efficiency is improved.

The utility model discloses an in the concrete implementation, in order to make the adsorption effect better, adsorb a coaxial overcoat dust screen of cage at every.

When the device is used, the adsorption embedded blocks which are fixedly arranged and are enclosed are firstly embedded in the adsorption cage, then the top cover and the base are respectively arranged at the upper end and the lower end of the adsorption tank through the flange, then the air inlet of the device is connected with the flue gas discharge port of other equipment, the air pump is started, the exhaust fan and the flue gas are sucked into the base, the temperature of the flue gas is reduced through the condensing coil pipe in the base, the cooled flue gas is pressed into the adsorption tank due to the action of pressure, the dust in the flue gas is blocked on the dust screen in the rising process, the flue gas adsorbs sulfur dioxide, nitrogen oxide and the like in the flue gas through the desulfurization and denitrification adsorption embedded blocks, the adsorption cage is rotated by starting the motor to be adsorbed to the new adsorption cage, so that each adsorption cage can play an adsorption role, the adsorbed gas is sucked from the cavity of the top cover due to the negative pressure action of the exhaust fan, discharge fast, this device is once only changed and is realized rotatory absorption many times, has not only simplified the absorption and has changed the flow, adsorbs the cage setting from top to bottom moreover, has improved absorption efficiency greatly.

Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims, and therefore, the scope of the present invention is not limited to the disclosure of the embodiments and the accompanying drawings.

Claims

1. The utility model provides a portable flue gas desulfurization denitrification facility which characterized in that: the adsorption device comprises a top cover, an adsorption tank, an adsorption cage, a base and an adsorption frame, wherein the base is coaxially installed on the adsorption frame, the base and the top cover are installed at the upper end and the lower end of the adsorption tank through flanges, an air inlet is formed in the lower portion of the base, an air outlet is formed in the upper end of the top cover, a rotating shaft is installed in the adsorption tank at an upper interval and a lower interval in a horizontal hinged mode and is driven by a motor, a pair of circular rotating plate frames are coaxially and radially installed in the rotating shaft, eight adsorption cages are radially and uniformly installed between the two circular rotating plate frames, the adsorption cages are arranged between the circular rotating plate frames according to an emission shape from the circle center to the circumference, the adsorption cage is of a screen mesh structure, the side wall; the adsorption insert is formed by surrounding adsorption particles through an ultrafine metal grid mesh.

2. The portable flue gas desulfurization and denitrification apparatus according to claim 1, wherein: and a dustproof net is coaxially sleeved outside the outer surface of the adsorption cage.

3. The portable flue gas desulfurization and denitrification apparatus according to claim 1, wherein: still be provided with a condensing coil in the base, condensing coil's water inlet is for being located condensing coil center port, and the water inlet is connected with outside cold source intercommunication through a hose, condensing coil's delivery port is then stretched out by the perpendicular base lateral wall of pipe of the outer lane of condensing coil and is connected with outside cold source intercommunication.

4. The portable flue gas desulfurization and denitrification apparatus according to claim 1, wherein: a fan is arranged at the air outlet at the top end of the top cover.

5. The portable flue gas desulfurization and denitrification apparatus according to claim 1, wherein: the lower part of the adsorption frame is provided with a supporting plate, an air pump is arranged on the supporting plate, and the air pump is connected with the air inlet through a connecting pipe.

6. The portable flue gas desulfurization and denitrification apparatus according to claim 1, wherein: four corners of the bottom of the adsorption frame are provided with universal wheels.