CN209397166U - Purification device - Google Patents
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- CN209397166U CN209397166U CN201821978902.2U CN201821978902U CN209397166U CN 209397166 U CN209397166 U CN 209397166U CN 201821978902 U CN201821978902 U CN 201821978902U CN 209397166 U CN209397166 U CN 209397166U
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- 238000000746 purification Methods 0.000 title claims abstract description 44
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 87
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 87
- 239000000498 cooling water Substances 0.000 claims abstract description 51
- 238000002309 gasification Methods 0.000 claims abstract description 34
- 239000007921 spray Substances 0.000 claims description 26
- 239000007788 liquid Substances 0.000 claims description 19
- 230000007246 mechanism Effects 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 238000005507 spraying Methods 0.000 claims description 18
- 239000000428 dust Substances 0.000 abstract description 44
- 239000002245 particle Substances 0.000 abstract description 44
- 238000001816 cooling Methods 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 15
- 230000009471 action Effects 0.000 abstract description 7
- 238000005406 washing Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 13
- 239000002893 slag Substances 0.000 description 13
- 239000008187 granular material Substances 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 239000003245 coal Substances 0.000 description 7
- 238000000926 separation method Methods 0.000 description 7
- 230000005484 gravity Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000001174 ascending effect Effects 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 238000002679 ablation Methods 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 230000004584 weight gain Effects 0.000 description 1
- 235000019786 weight gain Nutrition 0.000 description 1
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- Separating Particles In Gases By Inertia (AREA)
Abstract
The utility model provides a kind of purification device, which includes: cylinder, and for being connected with gasification furnace, the side wall close to top offers gas vent at top, and bottom offers lime-ash outlet, and cylinder is for accommodating cooling water；The down-comer of both ends open, is suspended in cylinder, and top is connected with the gasification chamber outlet of gasification furnace, and bottom end is placed in cooling water, and down-comer is delivered in cooling water for the indoor synthesis gas that will gasify；The helical duct of both ends open, it is set in cylinder and is located between down-comer and the inner wall of cylinder, top is placed in the lower section of gas vent, and bottom end is placed in the predetermined position of cooling water ullage, and helical duct is for receiving and purifying the synthesis gas being discharged from cooling water.In the utility model, under the cooling effect of cooling water and the centrifugal action of helical duct, removes effectively the tiny dust-laden particle carried in synthesis gas and improve dust removing effects to realize the further purification of synthesis gas, ensure that the pure of synthesis gas.
Description
Technical Field
The utility model relates to a coal gasification technical field particularly, relates to a purifier.
Background
Currently, the cooling method of the coal gasification synthesis gas comprises the following steps: chilling process and waste boiler process, in which entrained flow coal gasification technology using chilling process has been widely used.
Generally, in the cooling of a gasification furnace using a quench process, a washing cooling chamber (also referred to as a quench chamber) is provided at the bottom of the gasification chamber, and the temperature of a syngas discharged from the gasification chamber is lowered by the washing cooling chamber. Specifically, firstly, a certain amount of washing cooling water is introduced into a washing cooling chamber, then the high-temperature and high-pressure crude synthesis gas containing liquid slag discharged from the gasification chamber of the gasification furnace is conveyed into the washing cooling water through a descending pipe, so that the crude synthesis gas at 1200-1650 ℃ is chilled to 200-300 ℃, impurities such as liquid slag and dust are cooled and solidified into ash, and the ash is discharged from an ash outlet at the bottom of the washing cooling chamber. And the synthesis gas after washing, cooling and impurity removal is discharged from the washing cooling water, rises to a synthesis gas outlet close to the top of the washing cooling chamber along the space between the outer wall of the downcomer and the inner wall of the washing cooling chamber, and is output to a rear system from the synthesis gas outlet.
However, the synthesis gas after being washed, cooled and decontaminated still carries a large amount of fine dust-containing particles, and in the process that the synthesis gas rises to the washing and cooling chamber discharged from the synthesis gas outlet, because the resistance of the synthesis gas and the dust-containing particles is small, the dust-containing particles leave the washing and cooling chamber along with the synthesis gas without being separated from the synthesis gas, so that the dust removal pressure of a post-system is large, even the dust-containing gas which is not completely treated by the post-system enters a conversion system, the activity and the reaction efficiency of a catalyst are seriously influenced, and the long-period, safe and stable operation of a coal gasification system is not facilitated.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a purification device aims at solving among the prior art problem that the washing cooling chamber can't detach tiny dirt granule.
The utility model provides a purification device, the device includes: the top of the cylinder is used for being connected with the gasification furnace, a gas outlet is formed in the side wall close to the top of the cylinder, an ash residue outlet is formed in the bottom of the cylinder, and the cylinder is used for containing cooling water; the descending pipe with two open ends is suspended in the cylinder body, the top end of the descending pipe is connected with the outlet of the gasification chamber of the gasification furnace, the bottom end of the descending pipe is arranged in cooling water, and the descending pipe is used for conveying the synthesis gas in the gasification chamber to the cooling water; the spiral channel with two open ends is arranged in the cylinder and clamped between the inner wall of the descending pipe and the cylinder, the top end of the spiral channel is arranged below the gas outlet, the bottom end of the spiral channel is arranged at a preset position above the liquid level of the cooling water, and the spiral channel is used for receiving and purifying the synthesis gas discharged from the cooling water.
Further, the above purification apparatus further comprises: a helical conduit; wherein, the inner space of pipeline forms helical channel to, the lateral wall of pipeline relative both sides is connected with the outer wall of downcomer and the inner wall one-to-one of barrel respectively.
Further, the above purification apparatus further comprises: two parallel arranged spiral plates; wherein, two relative sides of every spiral plate are connected with the outer wall of downcomer and the inner wall of barrel one-to-one respectively, and two spiral plates, the outer wall of downcomer and the inner wall of barrel enclose and establish into helical passage.
Furthermore, in the purification device, along the height direction of the cylinder, the distance between two adjacent spiral layers in the spiral channel is 1-2 times of the diameter of the downcomer.
Further, in the above purification apparatus, the bottom wall of the spiral passage is inclined from the inner wall of the cylindrical body to the downcomer, and the bottom wall of the spiral passage is higher at the inner wall of the cylindrical body than at the downcomer.
Further, the above purification apparatus further comprises: and the spraying mechanism is arranged on the top end of the barrel, corresponds to the spiral channel and is used for conveying spraying water into the spiral channel.
Further, in the above purification apparatus, the shower mechanism includes: a spray pipe and a spray atomizing nozzle; the spraying pipe penetrates through the side wall of the cylinder body, part of the spraying pipe is arranged in the cylinder body, the inlet of the spraying pipe is arranged outside the cylinder body, and the outlet of the spraying pipe corresponds to the top end of the spiral channel; the spraying atomization nozzle is connected with the outlet of the spraying pipe.
Further, the above purification apparatus further comprises: and the bubble breaking mechanism is arranged at the bottom end of the spiral channel and used for eliminating bubbles in the synthesis gas.
Further, in the purification apparatus, the bubble breaking mechanism is a wire mesh or a bubble breaking strip.
Further, the above purification apparatus further comprises: a tapered gas distribution plate; wherein, the awl top of gas distribution plate is connected with the bottom of downcomer, and the awl bottom of gas distribution plate is connected with the inner wall of barrel, and gas distribution plate has seted up a plurality of through-holes.
In the utility model, the synthesis gas is conveyed into the cooling water in the cylinder body, the liquid slag and part of dust-containing particles in the synthesis gas are solidified and separated, the effect of purifying and separating the synthesis gas for the first time is achieved, the synthesis gas after the first purification is conveyed into the spiral channel, the fine dust-containing particles mixed in the synthesis gas are separated out by utilizing the effect of centrifugal force in the rising process, in addition, the spiral channel can effectively increase the speed of the synthesis gas and prolong the stroke of the synthesis gas, thereby better realizing the further purification of the synthesis gas, effectively removing the fine dust-containing particles carried in the synthesis gas, improving the dust removal effect, ensuring the purity of the synthesis gas, solving the problem that the washing and cooling chamber in the prior art can not remove the fine dust-containing particles, thereby ensuring the normal work of the rear system and ensuring the stable operation of the coal gasification system.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram of a purification apparatus provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a purification apparatus provided in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a purification apparatus provided in an embodiment of the present invention;
fig. 4 is a schematic view of a top view structure of a gas distribution plate in a purification apparatus according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a purification apparatus provided by an embodiment of the present invention. As shown, the purification apparatus includes: barrel 1, downcomer 2 and spiral channel 3. Wherein the top of the cylinder 1 (the upper portion shown in fig. 1) is used to be connected with a gasification furnace, and more particularly, the top of the cylinder 1 is connected with a gasification chamber of the gasification furnace. The side wall of the cylinder 1 near the top is provided with a gas outlet 11, and the gas outlet 11 is used for outputting the purified synthesis gas. An ash outlet 12 is formed in the bottom of the cylinder 1, the cylinder 1 is used for containing cooling water 4, the cooling water 4 is arranged at the bottom of the cylinder 1, the volume of the cooling water 4 in the cylinder 1 can be determined according to actual conditions, and the embodiment does not limit the volume.
Both ends of the downcomer 2 are open ends, the downcomer 2 is suspended in the cylinder 1, the top end (the upper end shown in fig. 1) of the downcomer 2 is connected with the outlet of the gasification chamber of the gasification furnace, the top end of the downcomer 2 is used for receiving the synthesis gas output by the gasification chamber, and the synthesis gas at the moment has high temperature and high pressure and is mixed with liquid slag and a large amount of dust-containing particles. The bottom end (the lower end shown in fig. 1) of the downcomer 2 is a free end, and the bottom end of the downcomer 2 is placed in the cooling water 4, and the downcomer 2 is used for conveying the syngas inside the gasification chamber into the cooling water 4. The cooling water 4 is used for cooling the synthesis gas, so that liquid slag mixed in the synthesis gas is cooled and solidified, and part of dust-containing particles are separated out to form ash. The ash is discharged from an ash outlet 12, and the synthesis gas is discharged from the cooling water 4.
Both ends of the spiral channel 3 are open ends, the spiral channel 3 is arranged in the cylinder 1, and the spiral channel 3 is clamped between the outer wall of the downcomer 2 and the inner wall of the cylinder 1. The top end 31 (the upper end shown in fig. 1) of the spiral channel 3 extends towards the top of the cylinder 1 and is positioned below (with respect to fig. 1) the gas outlet 11, the bottom end 32 (the lower end shown in fig. 1) of the spiral channel 3 extends towards the bottom of the cylinder 1 and is positioned at a predetermined position above the liquid level of the cooling water 4, and the spiral channel 3 is used for receiving and purifying the synthesis gas discharged from the cooling water 4 to separate out fine dust-containing particles entrained in the synthesis gas. Specifically, the spiral channel 3 is spirally arranged in the barrel 1 along the height direction of the barrel 1 (the direction from top to bottom shown in fig. 1), that is, the spiral channel 3 is spirally wound along the downcomer 2, the side walls of the two opposite sides of the spiral channel 3 are respectively connected with the outer wall of the downcomer 2 and the inner wall of the barrel 1 in a one-to-one correspondence manner, and then the spiral channel 3 blocks the space between the outer wall of the downcomer 2 and the inner wall of the barrel 1, so that the synthesis gas discharged from the cooling water 4 is conveyed into the spiral channel 3, and the synthesis gas is prevented from moving from the outer wall of the downcomer 2, the inner wall of the barrel 1 and the gap between the spiral channel 3 to the top of the barrel 1 until being discharged from the gas outlet 11. The top end 31 and the bottom end 32 of the spiral channel 3 are free ends, and the top end thereof is arranged near the gas outlet 11 and below the gas outlet 11.
The principle of the spiral channel 3 for purifying the synthesis gas is as follows: on the one hand, the synthesis gas and the dust-laden particles are separated by the difference in specific gravity between the synthesis gas and the dust-laden particles due to the centrifugal force in the spiral channel 3, such as: be mingled with the dirt particle by the water film parcel in the synthetic gas of discharge in the cooling water 4, these dirt particles are great because gravity, it can be got rid of on the wall of helical passage 3 to be the influence of centrifugal force in the spiral passageway 3 in-process that the heliciform rises, the dirt particle of 3 walls of helical passage gathers the back gradually, dirt particle follows helical passage 3 landing under the action of gravity and finally drops to in the cooling water 4, thereby make synthetic gas and dirt particle separation, reach the purpose of further purifying the synthetic gas. On the other hand, the space of the synthesis gas ascending channel is changed into the spiral channel 3 from the space in the cylinder 1 except the downcomer 2 in the prior art, and the inner diameter of the spiral channel 3 is smaller than that of the cylinder 1, so that the diameter of the synthesis gas flowing through the spiral channel 3 is reduced, the flow speed is accelerated, the effect of centrifugal force on the synthesis gas and dust-containing particles is further improved, and the dust-containing particles are further separated from the synthesis gas. On the other hand, the spiral channel 3 also effectively increases the ascending stroke of the synthesis gas, and is beneficial to better separating the synthesis gas from dust-containing particles.
The bottom end 32 of the spiral channel 3 is disposed at a predetermined position above the liquid level of the cooling water 4, that is, the bottom end 32 has a predetermined distance from the liquid level of the cooling water 4, and the predetermined distance may be determined according to practical situations, which is not limited in this embodiment. However, if the distance between the bottom end 32 of the spiral channel 3 and the liquid level of the cooling water 4 is too small, more water and large-particle ash are carried by the synthesis gas, and the separation burden of the spiral channel 3 is increased; if the distance between the bottom end 32 of the spiral channel 3 and the liquid level of the cooling water 4 is too large, the effective distance of the spiral channel 3 is shortened, and the separation effect is influenced. The predetermined distance is such that a large amount of water and large particle ash carried by the syngas is returned by gravity to the cooling water 4, so that the syngas is carried along with fine dust to the spiral channel 3 for further separation. Preferably, the distance between the bottom end 32 of the spiral channel 3 and the liquid level of the cooling water 4 is 0.5-1 m.
In specific implementation, in order to ensure that the dust-containing particles smoothly slide from the spiral channel 3 to the cooling water 4, the inner wall of the spiral channel 3 is smoothly arranged.
In specific implementation, a chilling ring 7 is arranged in the cylinder body 1 near the top, the chilling ring 7 is connected with the top end of the descending pipe 2, and the chilling ring 7 is used for conveying chilling water into the descending pipe 2 so as to pre-cool the synthesis gas conveyed in the descending pipe 2 and liquid slag and dust-containing particles mixed in the synthesis gas.
When the gasification furnace works, the synthetic gas in the gasification chamber of the gasification furnace is conveyed into the downcomer 2 through the outlet of the gasification chamber, and the synthetic gas is high in temperature and pressure and is mixed with liquid slag and a large amount of dust-containing particles. The downcomer 2 conveys the synthesis gas to cooling water 4 in the barrel 1, the synthesis gas is cooled in the cooling water 4, liquid slag included in the synthesis gas is cooled and solidified, part of dust-containing particles included in the synthesis gas are separated out from the synthesis gas, and finally, the dust and the solidified slag form ash slag which is discharged from an ash slag outlet 12. The synthesis gas moves upwards from the cooling water 4 to float out of the liquid level of the cooling water 4, and then is conveyed to the spiral channel 3 from the bottom end 32 of the spiral channel 3. In the conveying process, part of the synthesis gas rises towards the top of the cylinder 1 after leaving the cooling water 4, but because the spiral channel 3 is clamped between the outer wall of the downcomer 2 and the inner wall of the cylinder 1, the spiral channel 3 blocks the space between the outer wall of the downcomer 2 and the inner wall of the cylinder 1, the upward movement of the synthesis gas is prevented, and the synthesis gas is finally conveyed into the spiral channel 3. Carry the synthetic gas in helical passage 3 to be mingled with a large amount of tiny dusty granules, in helical passage 3, synthetic gas and dusty granules are the heliciform and rise, at this ascending in-process, dusty granules can be got rid of on helical passage 3's the wall under the effect of centrifugal force, the dusty granule of helical passage 3 wall gathers the back gradually, drop to cooling water 4 along helical passage 3 under the effect of gravity in to make synthetic gas and dusty granule separate, further purify the synthetic gas. The synthesis gas from which the dust-containing particles are removed is output from the top end 31 of the spiral channel 3, continues to move upwards in the cylinder 1, and is finally output from the gas outlet 11.
It can be seen that in this embodiment, the synthesis gas is conveyed to the cooling water 4 in the cylinder 1, the liquid slag and part of the dust-containing particles in the synthesis gas are solidified and separated, the synthesis gas is primarily purified and separated, the synthesis gas after primary purification is conveyed to the spiral channel 3, the fine dust-containing particles entrained in the synthesis gas are separated by the centrifugal force in the rising process, moreover, the spiral channel 3 can effectively increase the speed of the synthesis gas, prolong the stroke of the synthesis gas, thereby better realizing the further purification of the synthesis gas, effectively removing the fine dust-containing particles carried in the synthesis gas, improving the dust removal effect, ensuring the purity of the synthesis gas, solving the problem that the washing and cooling chamber in the prior art can not remove the fine dust-containing particles, thereby ensuring the normal work of the rear system and ensuring the stable operation of the coal gasification system.
A preferred configuration of the spiral channel is shown in this embodiment. The purification apparatus may further include: a pipeline. Wherein, the pipeline is the heliciform, and the pipeline is the heliciform between the outer wall of downcomer 2 and the inner wall of barrel 1 and winds along the direction of height of barrel 1 and establishes, and then the inner space of pipeline has formed helical channel 3. The side walls of the two opposite sides of the pipeline are respectively connected with the outer wall of the descending pipe 2 and the inner wall of the barrel 1 in a one-to-one correspondence manner, specifically, the pipeline is clamped in a space between the outer wall of the descending pipe 2 and the inner wall of the barrel 1, the radial distance of the pipeline is equal to the distance between the outer wall of the descending pipe 2 and the inner wall of the barrel 1, the side wall of one side of the pipeline is in contact with and connected with the outer wall of the descending pipe 2, and the side wall of the other opposite side of the pipeline is in contact with and connected with the inner wall.
In specific implementation, the connection mode between the pipeline and the outer wall of the downcomer 2 and the inner wall of the cylinder 1 may be welding connection, and of course, other connection modes may also be used, which is not limited in this embodiment.
It can be seen that, in the embodiment, the spiral channel 3 is formed through the inner space of the spiral pipeline, so that the structure is simple and the implementation is convenient.
Another preferred configuration of the spiral channel is shown in this embodiment. The purification apparatus may further include: two spiral plates. Wherein, two spiral plates are arranged side by side to, every spiral plate all is along the direction of height of barrel 1 and spiral around establishing between the outer wall of downcomer 2 and the inner wall of barrel 1. The two spiral plates have a preset distance therebetween, and are arranged up and down with respect to fig. 1. In specific implementation, the preset distance may be determined according to an actual situation, and this embodiment does not limit this.
Two opposite sides of each spiral plate are respectively connected with the outer wall of the descending pipe 2 and the inner wall of the cylinder 1 in a one-to-one correspondence manner, namely, each spiral plate is transversely arranged between the outer wall of the descending pipe 2 and the inner wall of the cylinder 1, one side of each spiral plate is contacted and connected with the outer wall of the descending pipe 2, and the other side of each spiral plate, which is opposite to the side of each spiral plate, is contacted and connected with the inner wall of the cylinder 1. Two spiral plates, the outer wall of the downcomer 2 and the inner wall of the barrel 1 enclose a spiral space, and the spiral space is a spiral channel 3.
In specific implementation, the connection mode between each spiral plate and the outer wall of the downcomer 2 and the inner wall of the cylinder 1 may be welding connection, and of course, other connection modes may also be used, which is not limited in this embodiment.
In specific implementation, each spiral plate may be an integral spiral plate, or may be formed by connecting a plurality of spiral plates in sequence. When the spiral plate is composed of a plurality of spiral plates, the spiral plates may be fixed to each other by rivet connection, welding connection, or the like.
It can be seen that, in this embodiment, the space enclosed by the two spiral plates arranged in parallel, the downcomer 2 and the inner wall of the cylinder 1 forms the spiral channel 3, and the structure is simple and convenient to implement.
With continued reference to fig. 1, in each of the above embodiments, the distance between two adjacent spiral layers in the spiral channel 3 along the height direction of the cylinder 1 is 1-2 times the diameter of the downcomer 2. Specifically, referring to fig. 1, in the cross section of the cylinder 1 in the height direction, since the spiral channel 3 is spirally wound, the spiral channel 3 is spaced at one side of the cross section of the cylinder 1, as shown by the spiral channel 3 shown in the left side of the cylinder 1 in fig. 1, the distance between the adjacent upper and lower layers of the spiral channel 3 at one side of the cross section of the cylinder 1 is denoted as L, and L is 1 to 2 times the diameter of the downcomer 2.
If the distance between two adjacent spiral layers in the spiral channel 3 is too large, the transverse area of the spiral channel 3 is too large, the speed of the synthesis gas is too slow, the centrifugal action is not obvious in the process that dust-containing particles and the synthesis gas rise in the spiral channel 3, and the purifying and dedusting effects are poor; if the distance undersize between two adjacent spiral layers in spiral passage 3, the cross area undersize of spiral passage 3, the speed of synthetic gas is too fast, although centrifugal action is more obvious, the shock vibration power of synthetic gas in spiral passage 3 is great, be unfavorable for spiral passage 3's structural stability, consequently, the distance between two adjacent spiral layers in spiral passage 3 is 1 ~ 2 times of downcomer 2 diameter, can guarantee the synthetic gas reasonable air velocity in spiral passage 3 effectively, ensure centrifugal action's effect, improve the efficiency of separation and purification.
With continued reference to fig. 1, in each of the above embodiments, the bottom wall of the spiral channel 3 is inclined from the inner wall of the cylinder 1 to the descending tube 2, and the bottom wall of the spiral channel 3 is higher at the inner wall of the cylinder 1 than at the descending tube 2, that is, the bottom wall of the spiral channel 3 is higher at the inner wall of the cylinder 1 and the bottom wall of the spiral channel 3 is lower at the descending tube 2. Wherein, when the spiral channel 3 is formed by a spiral pipeline, the side wall of the bottom of the pipeline is a bottom wall; when the spiral channel 3 is formed by enclosing two spiral plates arranged in parallel, the inner wall of the downcomer 2 and the inner wall of the cylinder 1, the spiral plate below the two spiral plates is the bottom wall of the spiral channel 3.
It can be seen that, in this embodiment, the bottom wall of the spiral channel 3 is obliquely arranged, so that the separated dust-containing particles can be collected conveniently, the dust-containing particles are prevented from covering the whole spiral channel 3, and the collected dust-containing particles can more smoothly slide down to the cooling water 4 along the spiral channel 3.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a purification apparatus provided in an embodiment of the present invention. As shown in the figures, in the above embodiments, the purification apparatus may further include: and a spraying mechanism 5. Wherein, spray mechanism 5 sets up in barrel 1 to, spray mechanism 5 corresponds to the top 31 of helical channel 3, and spray mechanism 5 is used for carrying the shower water in to helical channel 3.
Specifically, the spray mechanism 5 may include: a spray pipe 51 and a spray atomizer 52. The spraying pipe 51 penetrates through the side wall of the cylinder 1, and part of the spraying pipe 51 is arranged in the cylinder 1 and part of the spraying pipe is arranged outside the cylinder 1. The part of the shower pipe 51 disposed outside the cylinder 1 is provided with an inlet, that is, the inlet of the shower pipe 51 is disposed outside the cylinder 1 for receiving shower water. The part of the shower pipe 51 disposed inside the cylinder 1, which part is provided with an outlet, i.e., the outlet of the shower pipe 51 corresponds to the top end 31 of the spiral passage 3 and faces the inside of the spiral passage 3, extends toward the top end 31 of the spiral passage 3, and the outlet of the shower pipe 51 is used to spray shower water into the spiral passage 3. The spray atomizer 52 is connected to an outlet of the spray pipe 51, and the spray atomizer 52 is used for atomizing the spray water, so that the spray water in the spray pipe 51 is sprayed into the spiral passage 3 through the spray atomizer 52.
It can be seen that, in this embodiment, spray mechanism 5 sprays spray water in to spiral channel 3, cools off the synthetic gas in spiral channel 3 promptly and sprays, has increased the humidity of synthetic gas, and then the tiny dirt particle and dust that synthetic gas mix with etc. combine together with the atomizing water droplet of spray water, and the weight of the dirt particle and dust increases after combining converges to cooling water 4 along the wall of spiral channel 3 under the action of gravity for the synthetic gas further separates with dirt particle and dust, realizes purifying. And the sprayed spray water can also separate out dust-containing particles attached to the inner wall of the spiral channel 3 under the action of centrifugal force in the spiral channel 3 to be washed, so that the dust-containing particles can better return to the cooling water 4. In addition, when the bottom wall of spiral passage 3 inclines and sets up, dust-laden granule and dust flow downwards along spiral passage 3 near one side of downcomer 2 after combining together with the atomizing water droplet, and the inner wall of downcomer 2 forms a layer of water film in this in-process, and this water film can protect downcomer 2 effectively, avoids downcomer 2 ablation phenomenon because the temperature of the interior synthetic gas of downcomer 2 exceeds temperature etc. and causes.
In each of the above embodiments, the purification apparatus may further include: a bubble breaking mechanism. Wherein, broken bubble mechanism sets up in the bottom 32 of helical channel 3, and broken bubble mechanism is arranged in eliminating the bubble in the synthetic gas. In particular, the bubble breaking means is connected to the inner wall of the bottom end 32 of the spiral channel 3. Preferably, the bubble breaking mechanism is a wire mesh or a bubble breaking strip.
It can be seen that, in this embodiment, set up broken bubble mechanism through the bottom at helical channel 3, can cut the bubble that carries from discharged synthetic gas in cooling water 4 more effectively and break, the broken back water film parcel of bubble contains dirt granule by even wetting, weight gain after the wetting more is favorable to separating in helical channel 3, it leads to containing dirt granule to release by the synthetic gas and smugglies the top and then increase the problem of the separation degree of difficulty by the bubble breakage after the bubble parcel contains dirt granule is centrifuged to have avoided bubble breakage to lead to containing dirt granule to be smugglied secretly to helical channel 3's top.
Referring to fig. 3 and 4, in each of the above embodiments, the purification apparatus may further include: a gas distribution plate 6. Wherein the gas distribution plate 6 is tapered. The conical top end (the upper end shown in fig. 3) of the gas distribution plate 6 is connected with the bottom end of the downcomer 2, the conical bottom end (the lower end shown in fig. 3) of the gas distribution plate 6 is connected with the inner wall of the cylinder 1, and the gas distribution plate 6 is provided with a plurality of through holes 61. Specifically, the conical top end of the gas distribution plate 6 is an open end, the conical top end is sleeved outside the downcomer 2 and is connected to the outer wall of the downcomer 2, and the connection manner between the gas distribution plate 6 and the downcomer 2 and the cylinder 1 may be welding connection, or may be other connection manners, which is not limited in this embodiment. The through holes 61 are uniformly distributed on the gas distribution plate 6.
It can be seen that in the present embodiment, the ash can be effectively blocked by the gas distribution plate 6, so that the synthesis gas is conveyed to the spiral channel 3 through the through hole 61, and the ash is blocked at the bottom of the barrel 1, which plays an auxiliary role of purification and separation.
In conclusion, in the embodiment, the synthesis gas is conveyed to the cooling water 4 in the cylinder 1, liquid slag and part of dust-containing particles in the synthesis gas are solidified and separated, so that the effect of purifying and separating the synthesis gas for the first time is achieved, the synthesis gas after the first time purification is subjected to centrifugal force in the ascending process of the spiral channel 3 to separate out fine dust-containing particles mixed in the synthesis gas, in addition, the spiral channel 3 can effectively increase the speed of the synthesis gas and prolong the stroke of the synthesis gas, so that the further purification of the synthesis gas is better realized, fine dust-containing particles carried in the synthesis gas are effectively removed, the dust removal effect is improved, the purity of the synthesis gas is ensured, and the stable operation of a coal gasification system is ensured.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A purification apparatus, comprising:
the top of the cylinder body (1) is connected with the gasification furnace, a gas outlet (11) is formed in the side wall close to the top, an ash residue outlet (12) is formed in the bottom of the cylinder body, and the cylinder body (1) is used for containing cooling water (4);
the descending pipe (2) with two open ends is suspended in the barrel (1), the top end of the descending pipe is connected with the outlet of the gasification chamber of the gasification furnace, the bottom end of the descending pipe is arranged in the cooling water (4), and the descending pipe (2) is used for conveying the synthesis gas in the gasification chamber to the cooling water (4);
two end open-ended spiral channel (3), set up in just press from both sides and locate in barrel (1) downcomer (2) with between the inner wall of barrel (1), top (31) are arranged in the below of gas outlet (11), bottom (32) are arranged in the preset position department of cooling water (4) liquid level top, spiral channel (3) are used for receiving and purifying the follow exhaust synthetic gas in cooling water (4).
2. The purification apparatus of claim 1, further comprising: a helical conduit; wherein,
the inner space of the pipeline forms the spiral channel (3), and the side walls of the two opposite sides of the pipeline are respectively connected with the outer wall of the descending pipe (2) and the inner wall of the barrel body (1) in a one-to-one correspondence mode.
3. The purification apparatus of claim 1, further comprising: two parallel arranged spiral plates; wherein,
two opposite side edges of each spiral plate are respectively connected with the outer wall of the descending pipe (2) and the inner wall of the barrel body (1) in a one-to-one correspondence mode, and the spiral channels (3) are formed by enclosing the spiral plates, the outer wall of the descending pipe (2) and the inner wall of the barrel body (1).
4. The purification apparatus according to claim 1, wherein the distance between two adjacent spiral layers in the spiral channel (3) is 1-2 times the diameter of the downcomer (2) in the height direction of the cylinder (1).
5. Purification apparatus according to claim 1, wherein the bottom wall of the spiral channel (3) is inclined from the inner wall of the cylinder (1) to the downcomer (2), and wherein the height of the bottom wall of the spiral channel (3) at the inner wall of the cylinder (1) is higher than the height at the downcomer (2).
6. The purification apparatus according to any one of claims 1 to 5, further comprising:
and the spraying mechanism (5) is arranged on the barrel (1) and corresponds to the top end of the spiral channel (3) and is used for conveying spraying water into the spiral channel (3).
7. Purification device according to claim 6, wherein the spraying mechanism (5) comprises: a spray pipe (51) and a spray atomizer (52); wherein,
the spraying pipe (51) penetrates through the side wall of the cylinder body (1) and is partially arranged in the cylinder body (1), the inlet of the spraying pipe (51) is arranged outside the cylinder body (1), and the outlet of the spraying pipe (51) corresponds to the top end of the spiral channel (3);
the spray atomizing nozzle (52) is connected to the outlet of the spray pipe (51).
8. The purification apparatus according to any one of claims 1 to 5, further comprising:
and the bubble breaking mechanism is arranged at the bottom end of the spiral channel (3) and is used for eliminating bubbles in the synthesis gas.
9. The purification apparatus of claim 8, wherein the bubble-breaking mechanism is a wire mesh or a bubble-breaking strip.
10. The purification apparatus according to any one of claims 1 to 5, further comprising: a tapered gas distribution plate (6); wherein,
the cone top end of the gas distribution plate (6) is connected with the bottom end of the downcomer (2), the cone bottom end of the gas distribution plate (6) is connected with the inner wall of the barrel body (1), and the gas distribution plate (6) is provided with a plurality of through holes (61).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821978902.2U CN209397166U (en) | 2018-11-28 | 2018-11-28 | Purification device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821978902.2U CN209397166U (en) | 2018-11-28 | 2018-11-28 | Purification device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112195041A (en) * | 2020-10-23 | 2021-01-08 | 中国石油化工股份有限公司 | Coal water slurry purification pre-transformation furnace |
| CN112322356A (en) * | 2020-10-27 | 2021-02-05 | 东方电气集团东方锅炉股份有限公司 | Gasifier synthesis gas spray set and down water chilling gasifier |
| CN114806648A (en) * | 2022-06-27 | 2022-07-29 | 山西阳煤化工机械（集团）有限公司 | Crude gas separator and crude gas separation method |
-
2018
- 2018-11-28 CN CN201821978902.2U patent/CN209397166U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112195041A (en) * | 2020-10-23 | 2021-01-08 | 中国石油化工股份有限公司 | Coal water slurry purification pre-transformation furnace |
| CN112322356A (en) * | 2020-10-27 | 2021-02-05 | 东方电气集团东方锅炉股份有限公司 | Gasifier synthesis gas spray set and down water chilling gasifier |
| CN114806648A (en) * | 2022-06-27 | 2022-07-29 | 山西阳煤化工机械（集团）有限公司 | Crude gas separator and crude gas separation method |
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