CN213969431U

CN213969431U - Flue gas purification device of flame cutting machine

Info

Publication number: CN213969431U
Application number: CN202023091665.8U
Authority: CN
Inventors: 雷运理; 邓火生; 龙昌茂; 蒋照波; 苏永福; 张富林
Original assignee: Guangxi Fuwu Cnc Technology Co ltd
Current assignee: Guangxi Fuwu Cnc Technology Co ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-08-17
Anticipated expiration: 2030-12-21

Abstract

The utility model discloses a flue gas purification device of a flame cutting machine, which comprises an operation platform, a bracket arranged on the operation platform and a cutting head arranged on the bracket, wherein a bottom plate is arranged outside the operation platform, and a draught fan and a purification box are arranged on the bottom plate; the side surface of the purifying box is provided with an air inlet, the bottom of the purifying box is provided with a water outlet, and the top of the purifying box is provided with an air outlet; the top of the support is provided with a gas collecting pipe, one end of the gas collecting pipe is connected with the gas inlet end of the draught fan through a pipeline, and the other end of the gas collecting pipe is provided with a gas collecting hood; the air outlet end of the induced draft fan is connected with the air inlet of the purification box through a pipeline; a water spraying assembly is arranged in the purifying box and comprises a water inlet pipe and a first spray head arranged on the water inlet pipe. The novel baffle can gather harmful gases, and is convenient for gas collection treatment; the filter screen sleeve in the gas collecting pipe can carry out primary treatment on the flue gas, so that the pipeline blockage is avoided; the water spray component can wash particles and harmful gas in the flue gas to the bottom of the purification box, and the adsorption cotton, the adsorption particles, the filter screen and the like can further treat the flue gas, so that the purification effect is ensured.

Description

Flue gas purification device of flame cutting machine

Technical Field

The utility model belongs to the technical field of the cutting machine, concretely relates to flue gas purification device of flame cutting machine.

Background

The flame cutting machine is widely applied in the field of mechanical processing and is mainly used for cutting and processing metal workpieces. The flame cutting machine can produce a large amount of flue gas in the cutting process, the composition of flue gas is comparatively complicated, not only contains metal dust granule, still can contain compositions such as nitrogen oxide, and the smoke and dust that does not handle in the cutting process can disperse in the air, not only influences the clean health of operational environment, and operating personnel works in the operational environment who contains the smoke and dust moreover, and the inhaled smoke and dust also can endanger health. However, most of the existing flame cutting machines are not provided with a smoke dust removing device or are only provided with simple air exhaust equipment, only smoke dust can be simply exhausted out of a working place, and cutting smoke gas is not effectively treated.

SUMMERY OF THE UTILITY MODEL

The utility model provides a flue gas purification device of flame cutting machine to solve the technical problem.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a flue gas purification device of a flame cutting machine comprises an operation table, a support arranged on the operation table and a cutting head arranged at the inner top of the support, wherein a bottom plate is arranged on the outer side of the operation table, and an induced draft fan and a purification box are arranged on the bottom plate; the side surface of the purification box is provided with an air inlet, the bottom of the purification box is provided with a water outlet, and the top of the purification box is provided with an air outlet; the top of the support is provided with a gas collecting pipe, one end of the gas collecting pipe is connected with the gas inlet end of the induced draft fan through a pipeline, and the other end of the gas collecting pipe is provided with a gas collecting hood; the air outlet end of the induced draft fan is connected with the air inlet of the purification box through a pipeline; be provided with water spray assembly in the purifying box, water spray assembly include the inlet tube, set up in first shower nozzle on the inlet tube. Because the smoke generated by cutting is mainly generated when the cutting head cuts a workpiece, the gas collecting pipe arranged on the bracket can better collect the cut smoke; the gas collecting hood collects the flue gas, the flue gas enters the purifying box through the gas collecting pipe and the induced draft fan, particles and harmful gas components in the flue gas are washed to the bottom of the purifying box through a water spraying assembly arranged in the purifying box, and waste water at the bottom of the purifying box can be discharged from a water outlet; the treated purified flue gas is discharged from an exhaust port at the top of the purification box.

Furthermore, baffles are arranged on two sides of the top of the support, the baffles are arranged in an inclined mode, and the top of each baffle is higher than the bottom of the baffle; the bottom of the baffle is positioned below the gas-collecting hood. Because the temperature of the flame cutting machine is high in the cutting process, the formed smoke with certain temperature can rise upwards, so that the baffle plates arranged on the two sides of the top of the bracket and the bracket form an enclosure area, and the rising smoke can be gathered in the enclosure area, so that the smoke is prevented from being dissipated to the operating environment; the baffle is at a lower position, and the gas-collecting hood is at a higher position, so that the gas-collecting hood is convenient to collect the smoke in the area enclosed by the baffle and the bracket, and the smoke collection is ensured to be sufficient; the width of baffle need not set up too big, avoids influencing operating personnel's field of vision when the cutting operation.

Furthermore, the gas collecting pipe is provided with a mounting hole on one end close to the draught fan, a cover plate is arranged on the mounting hole, and a filter screen sleeve is arranged in the mounting hole. Because the flue gas enters the inside of the purification box from the bottom of the side surface of the purification box, the gas collecting pipe is arranged at the top of the support and is higher in position, the arranged gas collecting pipe and the pipeline need a certain length, and in order to prevent the flue gas from sinking to the bottom of the pipeline in the moving process of the gas collecting pipe and the pipeline, a filter screen sleeve needs to be arranged at one end of the gas collecting pipe close to the induced draft fan to perform primary treatment on the collected flue gas; the cover plate is hinged with the gas collecting pipe, when the filter screen sleeve needs to be replaced, the cover plate can be opened for replacement, and the cover plate is convenient to maintain; the cover plate is in a closed state in a non-replacement overhaul period.

Furthermore, the inlet tube is annular and is tightly attached to the inner side of the purification box, a second spray head is further arranged on the inlet tube, the second spray head is arranged in a direction towards the center line of the purification box and inclines upwards, and the second spray head is perpendicular to the first spray head. The first spray head sprays water downwards in an inclined mode towards the center line of the purification box, and the water can be fully contacted with ascending smoke gas from the air inlet; the second spray head is arranged obliquely upwards, the flue gas is firstly contacted with the water sprayed by the first spray head and then contacted with the water sprayed by the second spray head, and dust particles and harmful gases which are easy to dissolve in water in the flue gas can be effectively removed through twice water spraying treatment, so that the purification effect of the cut flue gas is ensured.

Furthermore, the first spray head and the second spray head are provided with a plurality of spray heads, and the first spray head and the second spray head are arranged on the water inlet pipe in a crossed mode. The water inlet pipe is provided with a certain number of first nozzles and second nozzles, so that the spraying effect can be improved, and the water sprayed by the first nozzles and the water sprayed by the second nozzles can be fully combined with the flue gas due to different orientations of the first nozzles and the second nozzles, so that the flue gas purification efficiency is improved; the first spray head and the second spray head are arranged in a crossed mode, water sprayed out of the first spray head and the second spray head can cover the area in a wider range, and therefore the flue gas and the water are in contact mixing more fully, and the purifying effect is improved.

Further, the air inlet is arranged below the water spraying assembly, a water baffle is arranged above the inner part of the purifying box of the air inlet, and the water baffle is arc-shaped. The air inlet is arranged below the water spraying assembly, so that water sprayed by the spray head can be fully contacted with the flue gas entering the purification box body from the air inlet, particles, nitrogen oxides and other harmful gases in the flue gas sink and dissolve to the bottom of the purification box through the spraying wetting of the water, after the purification box is used for a period of time, the waste water can be discharged by opening the water outlet, and the waste water can be further clarified; the water baffle arranged above the air inlet in the purifying box can prevent water sprayed by the spray head from entering the air inlet pipe.

Furthermore, an adsorption particle layer is arranged above the water spray assembly, the adsorption particles can be activated carbon particles, and a filter screen is arranged above the adsorption particle layer; the bottom of the adsorption particle layer is provided with an adsorption cotton layer; the arranged water spray assembly can remove part of smoke dust particles in the smoke and harmful gases such as nitric oxide and the like which are easily dissolved in water and generated by cutting, and the remaining smoke dust can further adsorb fine particles and harmful gases in the smoke through the arranged adsorption particle layer, so that the purification effect of the smoke is ensured; the arranged adsorption cotton layer has certain water absorbability, and the smoke treated by the water spray assembly contains certain moisture, so that the adsorption cotton layer can adsorb the moisture in the smoke and smoke particles adhered with the moisture, and the influence on the adsorption effect caused by the fact that the smoke carries more moisture to enter the adsorption particle layer is avoided; when the flue gas comes out from the adsorption particle layer, the filter screen can avoid the flue gas that rises to smuggle fine particle and discharge from the gas vent secretly to effectively detach the harmful component in the flue gas.

The utility model has the advantages that: 1. the baffle arranged on the bracket can gather harmful gas, so that the gas collecting pipe can conveniently carry out gas collecting treatment; 2. the filter screen sleeve arranged in the gas collecting pipe can carry out primary treatment on the flue gas, so that the problem that the collection efficiency of the flue gas is influenced due to the blockage of a pipeline is avoided; 3. the arranged water spray assembly can wash particulate matters in the flue gas and harmful gas components which are easy to dissolve in water to the bottom of the purification box, so that the further treatment of the flue gas is realized; 4. the adsorption cotton, the adsorption particles, the filter screen and the like arranged on the water spray assembly can fully absorb and block dust particles, harmful gases and the like in the flue gas, so that the effective treatment of the flue gas is ensured; this device can get rid of the harmful component in the flue gas betterly, guarantees the clean health of operational environment, simultaneously, can also avoid the operation personnel because inhale the health harm that the cutting flue gas led to the fact.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

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

Fig. 2 is a top view of the present invention.

Fig. 3 is a partially enlarged view of a portion a of fig. 1.

Reference numerals: 1-operation table, 2-bracket, 21-cutting head, 22-gas collecting pipe, 221-gas collecting hood, 222-mounting hole, 223-cover plate, 224-filter screen sleeve, 23-baffle, 3-bottom plate, 31-induced draft fan, 4-purification box, 41-gas inlet, 411-water baffle, 42-water outlet, 43-gas outlet, 44-water spray component, 441-water inlet pipe, 442-first spray head, 443-second spray head, 45-adsorption particle layer, 451-adsorption cotton layer and 46-filter screen.

Detailed Description

In order to facilitate a better understanding of the invention, the following examples are given with reference to the accompanying drawings, which belong to the scope of protection of the invention, but do not limit the scope of protection of the invention.

Examples

A flue gas purification device of a flame cutting machine is shown in figures 1 and 2, and comprises an operation platform 1, a support 2 arranged on the operation platform 1 and a cutting head 21 arranged at the inner top of the support 2, wherein a bottom plate 3 is arranged on the outer side of the operation platform 1, an induced draft fan 31 and a purification box 4 are arranged on the bottom plate 3, the induced draft fan 31 is arranged on the bottom plate 3 on the outer side of the operation platform 1, and the purification box 4 is arranged on the outer side of the induced draft fan 31; the side surface of the purifying box 4 is provided with an air inlet 41, the bottom is provided with a water outlet 42, and the top is provided with an air outlet 43; the top of the support 2 is provided with a gas collecting pipe 22, one end of the gas collecting pipe 22 is connected with the gas inlet end of the induced draft fan 31 through a pipeline, and the other end of the gas collecting pipe 22 is provided with a gas collecting hood 221; the air outlet end of the induced draft fan 31 is connected with the air inlet 41 of the purification box 4 through a pipeline; the water outlet is provided with a valve, and the exhaust port is provided with a valve; a water spraying assembly 44 is arranged in the purifying box 4, and the water spraying assembly 44 comprises a water inlet pipe 441 and a first nozzle 442 arranged on the water inlet pipe 441; the water inlet pipe 441 is provided with a valve, and the valve can use an electromagnetic valve, so that the control operation is convenient; supporting legs are arranged below the operating platform and the bottom plate.

As shown in fig. 1 and 2, baffles 23 are arranged on two sides of the top of the bracket 2, the baffles 22 are arranged in an inclined manner, and the tops of the baffles 22 are higher than the bottoms of the baffles; the bottom of the baffle 23 is positioned below the gas-collecting hood 221; the bottom of baffle is higher than the bottom of cutting head to make when specifically cutting the operation, the baffle can not block operating personnel's sight, has guaranteed the normal clear of cutting the operation.

As shown in fig. 1 and fig. 3, a mounting hole 222 is provided on one end of the gas collecting pipe 22 close to the induced draft fan 31, a cover plate 223 is provided on the mounting hole 222, and a filter screen 224 is provided in the mounting hole 222.

As shown in fig. 1, the inlet pipe 441 is annularly disposed closely to the inside of the purge tank 4, and the inlet pipe 441 is further provided with a second nozzle 443, the second nozzle 443 is disposed in an inclined direction toward the center of the purge tank 4, and the second nozzle 443 is perpendicular to the first nozzle 442.

As shown in fig. 1, a plurality of first nozzles 442 and second nozzles 443 are provided, and the first nozzles 442 and the second nozzles 443 are arranged to intersect with each other on the water inlet pipe 441.

As shown in fig. 1, the air inlet 41 is disposed below the water spray assembly 44, and the water baffle 411 is disposed above the inner portion of the purification box 4 of the air inlet 41, and the water baffle 411 is arc-shaped; the air inlet is arranged below the water spray assembly, so that a water outlet at the bottom of the purification box needs to be opened after the device is used for a period of time to discharge waste water, and the situation that the treated waste water submerges the water inlet excessively to influence the normal use of the flue gas purification device is avoided.

As shown in fig. 1, an adsorption particle layer 45 is arranged above the water spray assembly 44, and a filter screen 46 is arranged above the adsorption particle layer 45; an adsorption cotton layer 451 provided on the bottom of the adsorption particle layer 45.

An observation window is arranged on the side surface of the purification box and used for observing the treatment condition of the flue gas in the purification box and the use conditions of the adsorption cotton, the adsorption particles and the filter screen; the side of the purifying box can be provided with a replacing door for replacing the adsorption cotton, the adsorption particles and the filter screen.

In this neotype device, the concrete model of draught fan, cutting head, solenoid valve etc. that relate to is this neotype improvement point, does not do here and gives unnecessary details.

The using method comprises the following steps: a valve arranged on the exhaust port is opened, a valve arranged on the water outlet is closed, and a cover plate on the gas collecting pipe is tightly covered; placing a workpiece to be cut on an operation table, starting a cutting head, and starting the cutting head to cut the workpiece; starting the induced draft fan, and stopping the generated cutting smoke when the flame cutting head starts to cut the workpiece and the generated cutting smoke rises by the baffle plate, so that the cutting smoke cannot be dissipated in the operating environment; the negative pressure caused when the draught fan is started enables the flue gas to enter the gas collecting pipe from the gas collecting hood and finally enter the purifying box; opening a valve of the water inlet pipe, enabling water to enter the water inlet pipe, then spraying the water from the first spray head and the second spray head, enabling the water to be in contact with the flue gas entering the purification box from the air inlet, washing off particulate matters and harmful gas components which are easily soluble in water in the flue gas, and collecting the particulate matters and the harmful gas components at the bottom of the purification box; meanwhile, the sprayed water can also cool the flue gas, so that the flue gas is convenient to purify; the water baffle arranged above the air inlet can prevent water from entering the air inlet; the smoke processed by the water spraying component continuously rises and enters the adsorption cotton layer firstly, and because the smoke contains a certain amount of moisture, part of particulate matters and harmful gas components are adsorbed by the adsorption cotton, and the harmful components in the smoke are gradually reduced; then the flue gas enters an adsorption particle layer, and residual particles and harmful gas in the flue gas are adsorbed by the adsorption particles again, so that the flue gas is purified; the filter screen layer can block partial residual particulate matters, so that the purification treatment of the flue gas is realized, the environmental pollution and the personnel health hazard caused by untreated discharge of the flue gas are avoided, and the treated flue gas is discharged from the exhaust port; after the cutting operation is finished, the induced draft fan still continues to work for a period of time, so that the flue gas in the pipeline can enter the purification box to react fully, and then the water inlet of the water inlet pipe and the induced draft fan are closed; the filter screen arranged in the gas collecting pipe can carry out primary filtering treatment on the passing flue gas, so that the pipeline blockage caused by the deposition of particulate matters in the flue gas is avoided, and after the flue gas purifying device is used for a period of time, the filter screen can be taken out through opening the cover plate to be cleaned or replaced; after the purifying box is used for a period of time, a valve on the water outlet can be opened, so that the waste water is discharged from the water outlet, and the waste water can be recycled after being treated; the absorption cotton, the adsorption particle, the filter screen in observing the purifying box service behavior through the observation window, if the change door of purifying box side can be opened when absorbent dust granule is more, will adsorb cotton, adsorption particle, filter screen and take out recycle or change new in order to avoid the gas cleaning effect to receive the influence after the washing.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising" is used to specify the presence of stated elements, but not to preclude the presence or addition of additional like elements in a process, method, article, or apparatus that comprises the stated elements.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A flue gas purification device of a flame cutting machine comprises an operation table (1), a support (2) arranged on the operation table (1) and a cutting head (21) arranged at the inner top of the support (2), and is characterized in that a bottom plate (3) is arranged on the outer side of the operation table (1), and an induced draft fan (31) and a purification box (4) are arranged on the bottom plate (3); the side surface of the purification box (4) is provided with an air inlet (41), the bottom of the purification box is provided with a water outlet (42), and the top of the purification box is provided with an exhaust port (43); a gas collecting pipe (22) is arranged at the top of the support (2), one end of the gas collecting pipe (22) is connected with the gas inlet end of the induced draft fan (31) through a pipeline, and a gas collecting hood (221) is arranged at the other end of the gas collecting pipe (22); the air outlet end of the induced draft fan (31) is connected with the air inlet (41) of the purification box (4) through a pipeline;

be provided with water spray assembly (44) in purifying box (4), water spray assembly (44) include inlet tube (441), set up in first shower nozzle (442) on inlet tube (441).

2. The flue gas purification device of the flame cutting machine as claimed in claim 1, wherein baffles (23) are arranged on two sides of the top of the bracket (2), the baffles (23) are arranged in an inclined manner, and the top of each baffle (23) is higher than the bottom of the baffle; the bottom of the baffle (23) is positioned below the gas collecting hood (221).

3. The flue gas purification device of the torch cutting machine according to claim 1, wherein a mounting hole (222) is formed in one end of the gas collecting pipe (22) close to the induced draft fan (31), a cover plate (223) is arranged on the mounting hole (222), and a filter screen sleeve (224) is arranged in the mounting hole (222).

4. The flue gas cleaning device of the flame cutting machine according to claim 1, characterized in that the water inlet pipe (441) is annularly arranged close to the inner side of the cleaning box (4), the water inlet pipe (441) is further provided with a second nozzle (443), the second nozzle (443) is arranged in a direction towards the center of the cleaning box (4) and is inclined upwards, and the second nozzle (443) is perpendicular to the first nozzle (442).

5. The flue gas cleaning device of the flame cutting machine as claimed in claim 4, wherein a plurality of the first spray nozzles (442) and the second spray nozzles (443) are arranged, and the first spray nozzles (442) and the second spray nozzles (443) are arranged on the water inlet pipe (441) in a crossed manner.

6. The flue gas cleaning device of a flame cutting machine according to claim 5, characterized in that the air inlet (41) is arranged below the water spray assembly (44), the air inlet (41) is provided with a water baffle (411) above the inner part of the cleaning box (4), and the water baffle (411) is arc-shaped.

7. The flue gas purification device of the flame cutting machine according to any one of claims 1 to 6, characterized in that an adsorption particle layer (45) is arranged above the water spray assembly (44), and a filter screen (46) is arranged above the adsorption particle layer (45); an adsorption cotton layer (451) arranged at the bottom of the adsorption particle layer (45).