CN214065781U - High-temperature gas treatment device - Google Patents

Abstract

The embodiment of the disclosure provides a high-temperature gas treatment device, which comprises a shell, a cooling device arranged in the shell through a mounting plate, and a separating device arranged between the inner wall of the shell and the cooling device, wherein the top of the shell is provided with a gas inlet, and the bottom of the shell is provided with a grey water tank; the inside of cooling device is formed with the cooling zone, and gas inlet and cooling zone intercommunication, separator department are formed with the disengagement zone, and one side and the cooling zone of disengagement zone are adjacent and communicate, and the casing position that the opposite side of disengagement zone corresponds is provided with gas outlet. The high-temperature gas treatment device of the embodiment of the disclosure sets the separation device between the cooling device and the inner wall of the shell, fully utilizes the inner space of the equipment, controls the temperature through the cooling device to realize the cooling of the high-temperature gas, improves the cooling efficiency, further removes fly ash in the gas through the separation device, improves the purification efficiency, conveniently realizes automatic control, ensures the temperature stability of the equipment, and further ensures the long-term stable operation of the equipment.

Description

High-temperature gas treatment device

Technical Field

The disclosure relates to the technical field of chemical industry, in particular to a high-temperature gas treatment device and a high-temperature gas treatment method.

Background

Coal gasification is an important way for clean and efficient utilization of coal, a gasification raw material and a gasification agent react rapidly in a high-temperature and high-pressure environment to generate high-temperature gas, and then the high-temperature gas is cooled, purified and dedusted to finally obtain clean gas which can be used for chemical industry or energy production.

The cooling mode of the high-temperature gas mainly comprises a quenching process and a waste boiler process. The waste boiler process is characterized in that high-temperature synthesis gas is cooled by a waste heat boiler and subjected to primary dust removal, and partial waste heat can be recovered, but the waste boiler process has the defects of high investment, complex system and the like. The quenching process in the prior art is characterized in that high-temperature gas is fully contacted with excessive quenching water, and the synthesis gas is cooled and removed part of dust through water bath washing, so that the waste is caused due to excessive circulating water, and on the other hand, the obtained synthesis gas has low temperature and is easy to carry water and ash, and the quenching process is not beneficial to further use.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the embodiment of the present disclosure adopts the following technical solutions: the high-temperature gas treatment device comprises a shell, a cooling device arranged in the shell through a mounting plate, and a separating device arranged between the inner wall of the shell and the cooling device, wherein the top of the shell is provided with a gas inlet, and the bottom of the shell is provided with a grey water tank;

the cooling device is characterized in that a cooling area is formed inside the cooling device, the gas inlet is communicated with the cooling area, a separation area is formed at the separation device, one side of the separation area is adjacent to and communicated with the cooling area, and a gas outlet is formed in the shell corresponding to the other side of the separation area.

In some embodiments, the cooling device is a cylindrical structure constructed by a water wall, the hollow interior of which forms the cooling zone, the cooling zone including an inlet end adjacent to the gas inlet and an outlet end adjacent to and in communication with the separation zone, the water wall being provided with a water inlet and a water outlet at its lower and upper portions, respectively.

In some embodiments, the cooling device further comprises a first spray cooling device, wherein the first spray cooling device is composed of a nozzle arranged on the water-cooled wall and a plurality of first water inlet pipes connected to the nozzle and is positioned between the gas inlet and the inlet end.

In some embodiments, the cooling device further includes a first temperature measuring device disposed on the water wall near the water outlet for measuring a first temperature of water discharged from the water outlet.

In some embodiments, the cooling device further comprises a second temperature measuring device disposed on the water-cooled wall at the inlet of the separation zone for measuring a second temperature of the cooled gas;

the cooling device further comprises a second spray cooling device, wherein the second spray cooling device is formed by a multi-medium nozzle arranged on the shell and a plurality of inlet pipes connected with the multi-medium nozzle and is positioned between the outlet end and the second temperature measuring device, so that the second temperature exceeds a second threshold value and then is passed through the second spray cooling device to further cool the gas.

In some embodiments, the outlet end has an inner diameter that gradually expands to form a flaring structure, so that the high-temperature gas subjected to temperature reduction treatment enters the separation zone.

In some embodiments, the separation device includes a cyclone assembly disposed on the mounting plate and located in the separation region to separate the fly ash from the desuperheated hot gas.

In some embodiments, the cyclone separation assembly comprises a cyclone separator arranged between the shell and the cooling device through the mounting plate, a pipeline communicated with the bottom of the cyclone separator, an ash falling pipe arranged on the pipeline and close to the shell, an ash storage tank arranged at one end of the pipeline penetrating out of the shell, a stop valve arranged on the pipeline outside the shell, and an ash blowing pipe arranged between the stop valve and the shell; the ash falling pipe and the ash blowing pipe are communicated with the interior of the pipeline.

In some embodiments, the separation apparatus comprises a plurality of said cyclonic separation assemblies, the plurality of said cyclonic separation assemblies being evenly distributed in the separation region in a one/more annular array; when the cyclone separation components are uniformly distributed in the separation area in a multilayer annular array, the segmentation particle size of the cyclone separation components is continuously reduced from the lower layer to the upper layer.

In some embodiments, the grey water reservoir is in communication with a grey water circulation device for replenishing water to the grey water reservoir or receiving grey water overflowing from the grey water reservoir to maintain the level of water in the grey water reservoir within a predetermined height.

In some embodiments, the grey water circulating apparatus includes a water tank having a return pipe and an overflow pipe in communication with a grey water reservoir and a makeup pipe; a filter screen is arranged inside the water tank, and a drain pipe is arranged at the bottom of the water tank;

the water return pipe is positioned above the filter screen and is flush with the first water level of the ash pond, so that water is supplemented into the ash pond when the water level in the ash pond is lower than the first water level; one end of the overflow pipe extends into the lower part of the filter screen, and the other end of the overflow pipe is flush with the second water level height of the ash pond so as to receive water discharged from the ash pond when the water level in the ash pond is higher than the second water level.

Compared with the prior art, the beneficial effects of the embodiment of the present disclosure are that: through the high-temperature gas processing apparatus of this disclosed embodiment, set up separator between the inner wall of cooling device and casing, make full use of the inner space of equipment, it improves cooling efficiency through cooling device control temperature in order to realize high-temperature gas's cooling to further detach the flying dust in the gas through separator, improve purification efficiency, conveniently realize automatic control, guarantee equipment temperature stability, and then ensure the long-term steady operation of equipment.

Drawings

In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. Like reference numerals having letter suffixes or different letter suffixes may represent different instances of similar components. The drawings illustrate various embodiments generally by way of example and not by way of limitation, and together with the description and claims serve to explain the disclosed embodiments. The same reference numbers will be used throughout the drawings to refer to the same or like parts, where appropriate. Such embodiments are illustrative, and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.

Fig. 1 is a schematic structural diagram of a high-temperature gas processing apparatus according to an embodiment of the present disclosure.

The members denoted by reference numerals in the drawings:

100-a housing; 101-a gas inlet; 102-a gas outlet;

200-mounting plate;

300-a cooling device; 310-water-cooled wall; 311-a cooling zone; 311 a-inlet end; 311 b-an outlet end; 312-a water inlet; 313-a water outlet; 320-a first spray cooling device; 350-a second spray cooling device;

400-a separation device; 410-a cyclonic separation assembly; 411-a cyclone separator; 411 a-air outlet; 412-a pipe; 413-ash falling pipe; 414-ash storage tank; 415-a shut-off valve; 416-a lance tube; 420-a separation zone;

500-grey water pool;

600-grey water circulation means; 610-a water tank; 611-a water return pipe; 612-an overflow pipe; 613-water replenishing pipe; 614-filter screen; 615-a sewage draining pipe.

A-water wall interior space; b-the space between the second spray cooling device and the bottom cyclone section; c-the space between the cyclone groups; d-space between upper cyclone and gas outlet

Detailed Description

For a better understanding of the technical aspects of the present disclosure, reference is made to the following detailed description taken in conjunction with the accompanying drawings. Embodiments of the present disclosure are described in further detail below with reference to the figures and the detailed description, but the present disclosure is not limited thereto.

The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element preceding the word covers the element listed after the word, and does not exclude the possibility that other elements are also covered. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

In the present disclosure, when a specific device is described as being located between a first device and a second device, there may or may not be intervening devices between the specific device and the first device or the second device. When a particular device is described as being coupled to other devices, that particular device may be directly coupled to the other devices without intervening devices or may be directly coupled to the other devices with intervening devices.

All terms (including technical or scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

The embodiment of the present disclosure provides a high-temperature gas processing apparatus, referring to fig. 1, fig. 1 shows a schematic structural diagram of the high-temperature gas processing apparatus according to the embodiment of the present disclosure, an arrow on a dotted line in the figure is a flow direction of gas, the high-temperature gas processing apparatus includes a casing 100, a gas inlet 101 for high-temperature gas to enter and a gas outlet 102 for high-temperature gas to exit are arranged on the casing 100, the gas inlet 101 is arranged on the top of the casing 100, a mounting plate 200 is arranged in the casing 100, a cooling device 300 for fixedly mounting the casing to cool the high-temperature gas, and a separating device 400 capable of removing impurities in the high-temperature gas, the separating device 400 is located between the cooling device 300 and an inner wall of the casing 100, a cooling area 311 is formed inside the cooling device 300, the gas inlet 101 is communicated with the cooling area 311, so that the entering high-temperature gas can be cooled through the cooling area 311, a separation area 420 is formed at the separation device 400, one side of the separation area 420 is adjacent to and communicated with the cooling area 311, so that after the gas subjected to temperature reduction enters the separation area 420, ash and slag with finer particles can be removed through treatment of the separation device 400, and a gas outlet 102 is formed at the position of the shell 100 corresponding to the other side of the separation area 420, so that the gas passing through the separation area 420 can be discharged out of the shell 100 and sent to a subsequent process for use; the bottom of the housing 100 is provided with an ash pond 500 for accommodating large particles of ash separated from the high-temperature gas.

In a specific implementation, as shown in fig. 1, a high-temperature gas enters a cooling area 311 inside a cooling device 300 from a gas inlet 101 on a housing 100, the high-temperature gas descends in the cooling area 311 and is subjected to a cooling treatment by the cooling device 300, the high-temperature gas starts to turn back after passing through the cooling area, large-particle ash entrained in the cooled gas in the turning-back process falls into an ash water pool 500 under the action of gravity, the cooled gas enters a separation area 420 adjacent to and communicated with the cooling area 311, small-particle ash entrained in the cooled gas is removed through a dust removal treatment under the action of a separation device 400, and finally, the clean gas subjected to the dust removal treatment is discharged out of the housing 100 through a gas outlet 102 and is sent to a subsequent process for use.

The high-temperature gas treatment device of the embodiment of the disclosure sets the separation device 400 between the cooling device 300 and the inner wall of the casing 100, fully utilizes the inner space of the equipment, improves the space utilization rate, controls the temperature through the cooling device 300 to realize the cooling of the gas, improves the cooling efficiency, removes impurities in the gas through the separation device 400, and can ensure the temperature stability of the equipment under the condition of no human intervention, thereby ensuring the long-term stable operation of the equipment.

In some embodiments, the cooling device 300 is a cylindrical structure constructed by a water wall 310, the inner space a of the water wall 310 is a cooling zone 311 formed by the hollow inside of the cylindrical structure for passing the high-temperature gas for cooling treatment, the cooling zone 311 includes an inlet end 311a and an outlet end 311b, the inlet end 311a is adjacent to the gas inlet 101, the outlet end 311b is adjacent to and communicated with the separation zone 420, the lower part and the upper part of the water wall 310 are respectively provided with a water inlet 312 and a water outlet 313, so that the cooling water can enter the water wall 310 from the water inlet 312 and can be discharged from the water outlet 313 after heat exchange is completed; in specific implementation, the high-temperature gas enters the cooling zone 311 from the inlet 311a, and fully contacts with the inner wall of the cylindrical structure formed by the water wall 310, so as to perform heat interaction to achieve a cooling effect, and then is discharged from the outlet 311b and enters the separation zone 420. Further, the inner diameter of the outlet end 311b is gradually enlarged to form a flaring structure, which is beneficial to reducing the gas velocity during turning back, so that the high-temperature gas subjected to cooling treatment is gradually diffused and uniformly distributed along with the inner wall of the water-cooled wall 310 which is externally enlarged, and then rises to enter the separation zone 420.

Further, the cooling device 300 further includes a first spray cooling device 320, the first spray cooling device 320 is composed of a nozzle (not shown) disposed on the water-cooled wall 310 and a plurality of first water inlet pipes (not shown) connected to the nozzle, the first spray cooling device 320 is located between the gas inlet 101 and the inlet 311a, when the high-temperature gas enters the cooling zone 311 through the inlet 311a, the first spray cooling device 320 changes water in the first water inlet pipe into water mist through the nozzle, and the water mist is sprayed into the high-temperature gas, and the amount of the sprayed water can be adjusted as required to cool the high-temperature gas. Further, the cooling device 300 further includes a first temperature measuring device (not shown), which may be a temperature measuring thermocouple disposed on the water-cooled wall 310, and is located near the water outlet 313, and is configured to measure a first temperature of the water discharged from the water outlet 313, so as to enhance a cooling effect on the high-temperature gas by adjusting an amount of water entering a first water inlet pipe of the first spray cooling device 320 when the first temperature exceeds a first threshold value, so as to reach a preset temperature range.

In this embodiment, specifically, the first threshold may be set to a temperature target value that is higher than the saturation temperature under the partial pressure of water at that time by 30 ℃ to 100 ℃, at which temperature the water in the water-cooled wall 310 for cooling the high-temperature gas is heated to form water vapor, and when the first temperature of the water vapor discharged from the water-cooled wall 310 measured at the water outlet 313 of the water-cooled wall 310 exceeds the first threshold, the amount of water in the first water inlet pipe is increased to increase the spray passing through the nozzle, so as to enhance the cooling effect of the first spray cooling device 320, and make the first temperature reach a preset temperature interval; when the first temperature of the water outlet 313 of the water wall 310 does not exceed the saturation temperature of 30 ℃ under the current water partial pressure condition, the water amount in the first water inlet pipe is reduced, and the spray passing through the nozzle is reduced, so that the cooling effect of the first spray cooling device 320 is reduced, and the first temperature reaches a preset temperature interval.

In this embodiment, through set up first temperature measuring device in water-cooling wall 310 exit, in time adopt the cooling means when first temperature exceeds first threshold value to avoid high-temperature gas to the threat of casing 100, guarantee equipment safety uses first mist cooling device 320 to cool down the processing simultaneously, effectively improves cooling efficiency, and the gas after the control cooling is in overheated state, has reduced the quantity of cooling water, conveniently realizes automatic control.

Further, the cooling device 300 further includes a second temperature measuring device (not shown), which may be a temperature measuring thermocouple disposed on the water-cooled wall 310, and is located at the inlet of the separation zone 420, and is used for measuring a second temperature of the cooled gas entering the separation zone 420; the cooling device 300 further includes a second spray cooling device 350, the second spray cooling device 350 is composed of a multi-medium nozzle (not shown) arranged on the casing 100 and a plurality of second inlet pipes (not shown) connected to the multi-medium nozzle, and is located between the outlet end 311b and the second temperature measuring device, so that when the second temperature exceeds a second threshold value, the gas is further cooled through the second spray cooling device 350, and when the cooled gas enters the separation region 420 from the cooling region 311, if the temperature of the cooled gas exceeds the second threshold value, the separation device 400 is damaged, at this time, the gas can be cooled through the second spray cooling device 350 in an emergency manner, water in the second inlet pipe is changed into pressure water mist through the multi-medium nozzle, and the pressure water mist is sprayed into the gas, so that the second temperature reaches a preset temperature range.

In this embodiment, specifically, the second threshold may be set to a certain value or a certain temperature range from 300 ℃ to 350 ℃, an upper limit of the temperature value or the temperature range is set to be related to a temperature that the equipment material can bear, and the temperature cannot exceed the temperature that the equipment material can bear, so as to ensure safety of the equipment, and a lower limit of the temperature value or the temperature range is set to be not lower than a saturation temperature of 20 ℃ under the current water partial pressure condition, so as to ensure that the cooled gas is still in an overheated state, so as to reduce water consumption for cooling, and meanwhile, the gas in the overheated state does not carry water vapor, so that condensation of water vapor is prevented from forming a scaling phenomenon in the separation device 400, and the stable operation of the separation device 400 is affected. When the second temperature of the cooled gas exceeds a second threshold value, increasing the water amount in the second water inlet pipe to increase the spray passing through the multi-medium nozzle so as to enhance the cooling effect of the second spray cooling device 350 and enable the second temperature to reach a preset temperature interval; when the second temperature of the cooled gas is lower than the saturation temperature of 20 ℃ under the partial pressure of water at that time, the water amount in the second water inlet pipe is reduced, and the spray of the multi-medium nozzle is reduced, so that the cooling effect of the second spray cooling device 350 is reduced, and the second temperature reaches a preset temperature interval.

In this embodiment, through setting up first temperature measuring device at separation region 420 entrance, in time adopt urgent cooling means when the second temperature exceeds the second threshold value, in order to avoid the damage that high-temperature gas caused to separator 400, ensure equipment safety, use second mist cooling device 350 to cool down simultaneously and handle, and the gas after the control cooling still is in overheated condition, the quantity of cooling water has been controlled, also conveniently realize automatic control, avoided simultaneously that gas takes steam to get into separator 400, form the scale deposit in separator 400, reduce separation efficiency, influence the life of cooling device 300.

In some embodiments, the separation device 400 includes a cyclone assembly 410 disposed between the housing 100 and the cooling device 300 via a mounting plate 200 and located in the separation region 420 to facilitate separation of the fly ash from the temperature-reduced gas.

Specifically, the cyclone separation assembly 410 includes a cyclone 411 installed between the housing 100 and the cooling device 300 through the mounting plate 200, a pipe 412 communicated with the bottom of the cyclone 411, an ash dropping pipe 413 disposed on the pipe 412 and adjacent to the housing 100, an ash storage tank 414 disposed at one end of the pipe 412 penetrating out of the housing 100, a shut-off valve 415 disposed on the pipe 412 outside the housing 100, and an ash blowing pipe 416 disposed between the shut-off valve 415 and the housing 100; the dust falling pipe 413 and the dust blowing pipe 416 are communicated with the inside of the pipeline 412. In specific use, when the cyclone separator 411 is installed, the height of the air outlet 411a of the cyclone separator is higher than the highest point of the installation plate 200, so that fly ash in the gas can be better separated; when the cooled gas passes through the separation zone 420, fly ash in the gas is separated by the cyclone 411, the fly ash falls into the ash storage tank 414 through the pipe 412 communicated with the bottom of the cyclone 411, in order to collect the fly ash in the pipe 412, the pipe 412 can be obliquely arranged, one end connected with the ash storage tank 414 is arranged lower than the other end, so that the fly ash in the pipe 412 falls into the ash storage tank 414, similarly, the mounting plate 200 can also be obliquely arranged in the same way as the pipe 412, so that when part of floating ash falls on the mounting plate 200 and is gathered, the mounting plate 200 which is obliquely arranged falls into the pipe 412 through the ash falling pipe 413 and finally falls into the ash storage tank 414; when ash discharge is needed, the ash storage tank 414 is disconnected from the pipeline 412 through the stop valve 415, and back blowing is carried out through the ash blowing pipe 416 so as to clear the blockage of accumulated ash in time.

In some embodiments, the separation apparatus 400 comprises a plurality of the cyclone separation assemblies 410, the plurality of cyclone separation assemblies 410 being uniformly distributed in the separation zone 420 in one or more annular arrays; when the cyclone separation components are uniformly distributed in the separation area in a multilayer annular array, the segmentation particle size of the cyclone separation components is continuously reduced from the lower layer to the upper layer. Like this, can be according to the condition of the impurity that carries in the cleanliness factor of required gas or the gas, evenly arrange one deck or multilayer cyclone 410 in separation zone 420 and separate impurity purge gas, moreover, when setting up multilayer cyclone 410, can carry out dust removal in grades according to the particle size of impurity, get rid of the great impurity of particle size earlier, get rid of the less impurity of particle size again to dust collection efficiency when improving separation impurity.

Specifically, the separation region 420 may include a space B between the second spray cooling device and the bottom cyclone section and a space D between the upper cyclone and the gas outlet, and when two layers of cyclone separation assemblies 410 are disposed in the separation region 420, the separation region 420 further includes a space C between the cyclone groups, and it is understood that multiple layers of cyclone separation assemblies 410 may be disposed in the separation region 420 in this order to improve the gas purification rate as required.

In this embodiment, after the high-temperature gas is cooled by the water-cooled wall 310 in the water-cooled wall internal space a, the high-temperature gas comes out from the water-cooled wall internal space a, and enters the separation region 420 for separation through the space B between the second spray cooling device and the bottom cyclone section, a second temperature measuring device is arranged in the space B between the second spray cooling device and the bottom cyclone section, the temperature of the gas entering the cyclone separation assembly 410 is measured, and when the temperature of the gas entering the cyclone separation assembly 410 is higher than a second threshold value, the gas is cooled by the second spray device, so that the temperature of the gas entering the cyclone separation assembly 410 is controlled, and the cyclone separation assembly 410 is protected from being damaged. After the gas subjected to temperature reduction enters a space B between the second spray cooling device and the bottom cyclone section, fly ash in the gas is separated under the action of the cyclone separation component 410, and the purified gas enters a space D between the upper cyclone and the gas outlet and is then sent to a subsequent process from the gas outlet 102 for use; when two layers of cyclonic separation assemblies 410 are arranged, as the gas passes through the first layer of cyclonic separation assemblies 410, impurities with larger particle size entrained in the gas can be removed firstly through the inlet cyclone speed, the centrifugal speed and the outlet cyclone speed preset in the first layer cyclone separation component 410, the gas purified by the first layer cyclone separation component 410 enters the space C between the cyclone groups, so as to be purified by the second layer of cyclone separation component 410, at this time, impurities with smaller particle size entrained in the gas are removed by the inlet cyclone speed, the centrifugal speed and the outlet cyclone speed preset in the second layer of cyclone separation component 410, so as to further separate the fly ash in the gas, the gas purified by the second layer cyclone separation component 410 enters the space D between the upper layer cyclone and the gas outlet, and then is sent to the subsequent process for use through the gas outlet 102.

In some embodiments, the grey water reservoir 500 is connected to a grey water circulation device 600 for controlling the level of the grey water reservoir 500, and the grey water circulation device 600 can supply water to the grey water reservoir 500 or receive grey water overflowed from the grey water reservoir 500 to maintain the level of the grey water reservoir 500 within a predetermined height. Further, the grey water circulating device 600 comprises a water tank 610, wherein the water tank 610 is provided with a water return pipe 611 and an overflow pipe 612 which are communicated with the grey water pool 500, and a water supply pipe 613, and the water supply pipe 613 is used for supplying water into the water tank 610 so as to ensure the water quantity in the water tank 610 and meet the requirement of grey water circulation; a filter screen 614 is arranged in the water tank 610, a drain pipe 615 is arranged at the bottom of the water tank 610, ash brought out from the grey water pool 500 is isolated at the bottom of the water tank 610 below the filter screen 614 through the filter screen 614, and the ash at the bottom of the water tank 610 can be continuously or intermittently discharged through the drain pipe 615; the water return pipe 611 is located above the filter screen 614 and is level with the first water level of the ash pond 500, when the water level in the ash pond 500 is lower than the first water level, the water return pipe 611 can guide the ash water filtered by the filter screen 614 in the water tank 610 into the ash pond 500, here, a pump can be arranged on the pipeline of the water return pipe 611 for lifting the ash water pressure head and sending the ash water filtered in the water tank 610 into the ash pond 500 through the water return pipe 611, so that the ash water in the ash pond 500 rotates in the circumferential direction to drive ash in the ash pond 500, so as to bring the ash water tank 610 into the ash through the overflow pipe 612, an ash outlet can also be arranged at the bottom of the ash pond 500 for discharging the ash, which is not limited herein; one end of the overflow pipe 612 extends below the filter screen 614, and the other end of the overflow pipe 612 is flush with the second water level of the grey water pool 500, so that when the water level in the grey water pool 500 is higher than the second water level, the grey water drained from the grey water pool 500 can be guided to the position below the filter screen 614 in the water tank 610 through the overflow pipe 612, and ash and slag carried in the grey water are isolated at the lower part of the filter screen 614.

The high-temperature gas treatment device of the embodiment of the disclosure sets the separation device 400 between the cooling device 300 and the inner wall of the casing 100, fully utilizes the inner space of the equipment, controls the temperature through the cooling device 300 to realize the cooling of the high-temperature gas, improves the cooling efficiency, further removes fly ash in the gas through the separation device 400, improves the purification efficiency, conveniently realizes automatic control, ensures the temperature stability of the equipment, and further ensures the long-term stable operation of the equipment.

Moreover, although exemplary embodiments have been described herein, the scope thereof includes any and all embodiments based on the disclosure with equivalent elements, modifications, omissions, combinations (e.g., of various embodiments across), adaptations or alterations. The elements in the claims are to be interpreted broadly based on the language employed in the claims and not limited to examples described in the specification or during the prosecution of the disclosure, which examples are to be construed as non-exclusive. It is intended, therefore, that the specification and examples be considered as exemplary only, with a true scope and spirit being indicated by the following claims and their full scope of equivalents.

The above description is intended to be illustrative and not restrictive. For example, the above-described examples (or one or more versions thereof) may be used in combination with each other. For example, other embodiments may be used by those of ordinary skill in the art upon reading the above description. In addition, in the foregoing detailed description, various features may be grouped together to streamline the disclosure. This should not be interpreted as an intention that a disclosed feature not claimed is essential to any claim. Rather, the subject matter of the present disclosure may lie in less than all features of a particular disclosed embodiment. Thus, the following claims are hereby incorporated into the detailed description as examples or embodiments, with each claim standing on its own as a separate embodiment, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations. The scope of the disclosure should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.

The above embodiments are merely exemplary embodiments of the present disclosure, which is not intended to limit the present disclosure, and the scope of the present disclosure is defined by the claims. Various modifications and equivalents of the disclosure may occur to those skilled in the art within the spirit and scope of the disclosure, and such modifications and equivalents are considered to be within the scope of the disclosure.

Claims (11)

1. A high-temperature gas treatment device is characterized by comprising a shell, a cooling device arranged in the shell through a mounting plate, and a separating device arranged between the inner wall of the shell and the cooling device, wherein the top of the shell is provided with a gas inlet, and the bottom of the shell is provided with a grey water tank;

the cooling device is characterized in that a cooling area is formed inside the cooling device, the gas inlet is communicated with the cooling area, a separation area is formed at the separation device, one side of the separation area is adjacent to and communicated with the cooling area, and a gas outlet is formed in the shell corresponding to the other side of the separation area.

2. A high temperature gas processing apparatus according to claim 1, wherein the cooling means is a cylindrical structure constructed by a water-cooled wall, the hollow interior of which forms the cooling zone, the cooling zone including an inlet end adjacent to the gas inlet and an outlet end adjacent to and communicating with the separation zone, the water-cooled wall being provided at lower and upper portions thereof with a water inlet and a water outlet, respectively.

3. A hot gas processing unit as claimed in claim 2, wherein the cooling unit further comprises a first spray cooling unit comprising a nozzle disposed on the waterwall and a plurality of first water inlet pipes connected to the nozzle and located between the gas inlet and the inlet end.

4. A hot gas processing unit as claimed in claim 2, wherein the cooling unit further comprises a first temperature measuring device disposed on the waterwall in the vicinity of the water outlet for measuring a first temperature of water discharged from the water outlet.

5. The high-temperature gas treatment device according to claim 2, wherein the cooling device further comprises a second temperature measuring device disposed on the water-cooled wall at the inlet of the separation zone for measuring a second temperature of the gas subjected to the cooling treatment;

the cooling device further comprises a second spray cooling device, wherein the second spray cooling device is formed by a multi-medium nozzle arranged on the shell and a plurality of inlet pipes connected with the multi-medium nozzle and is positioned between the outlet end and the second temperature measuring device, so that the second temperature exceeds a second threshold value and then is passed through the second spray cooling device to further cool the gas.

6. A hot gas processing apparatus as claimed in claim 2, wherein the outlet end has a gradually enlarged inner diameter to form a flared structure, so as to facilitate the entry of the hot gas subjected to temperature reduction into the separation zone.

7. The hot gas processing apparatus as claimed in claim 1, wherein the separation device comprises a cyclone assembly disposed on a mounting plate and located in the separation area to separate the fly ash in the hot gas subjected to temperature reduction processing.

8. The high-temperature gas treatment device according to claim 7, wherein the cyclone separation assembly comprises a cyclone separator mounted between the housing and the cooling device through the mounting plate, a pipeline communicated with the bottom of the cyclone separator, an ash falling pipe arranged on the pipeline and close to the housing, an ash storage tank arranged at one end of the pipeline penetrating out of the housing, a stop valve arranged on the pipeline outside the housing, and an ash blowing pipe arranged between the stop valve and the housing; the ash falling pipe and the ash blowing pipe are communicated with the interior of the pipeline.

9. A hot gas processing unit as claimed in claim 7, wherein the separation unit comprises a plurality of cyclone separation modules uniformly distributed in the separation zone in a one-layer/multi-layer annular array; when the cyclone separation components are uniformly distributed in the separation area in a multilayer annular array, the segmentation particle size of the cyclone separation components is continuously reduced from the lower layer to the upper layer.

10. A hot gas processing unit as claimed in claim 1, wherein the grey water reservoir is connected to a grey water circulation unit for supplying water to the grey water reservoir or receiving grey water overflowed from the grey water reservoir to maintain the level of water in the grey water reservoir within a predetermined height.

11. A high temperature gas treatment apparatus according to claim 10, wherein the grey water circulating means comprises a water tank having a return pipe and an overflow pipe and a water replenishing pipe in communication with a grey water reservoir; a filter screen is arranged inside the water tank, and a drain pipe is arranged at the bottom of the water tank;

the water return pipe is positioned above the filter screen and is flush with the first water level of the ash pond, so that water is supplemented into the ash pond when the water level in the ash pond is lower than the first water level; one end of the overflow pipe extends into the lower part of the filter screen, and the other end of the overflow pipe is flush with the second water level height of the ash pond so as to receive water discharged from the ash pond when the water level in the ash pond is higher than the second water level.

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