CN108926968A - A kind of waste heat from tail gas absorption cleaning separator and method - Google Patents
A kind of waste heat from tail gas absorption cleaning separator and method Download PDFInfo
- Publication number
- CN108926968A CN108926968A CN201810908047.6A CN201810908047A CN108926968A CN 108926968 A CN108926968 A CN 108926968A CN 201810908047 A CN201810908047 A CN 201810908047A CN 108926968 A CN108926968 A CN 108926968A
- Authority
- CN
- China
- Prior art keywords
- tail gas
- separation device
- waste heat
- purification
- heat absorption
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007789 gas Substances 0.000 title claims abstract description 144
- 239000002918 waste heat Substances 0.000 title claims abstract description 65
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title abstract description 9
- 238000004140 cleaning Methods 0.000 title 1
- 238000000926 separation method Methods 0.000 claims abstract description 98
- 238000000746 purification Methods 0.000 claims abstract description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 59
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 239000002699 waste material Substances 0.000 claims abstract description 15
- 239000012535 impurity Substances 0.000 claims abstract description 13
- 238000005507 spraying Methods 0.000 claims abstract description 7
- 239000000126 substance Substances 0.000 claims description 17
- 239000002245 particle Substances 0.000 claims description 16
- 239000000428 dust Substances 0.000 claims description 13
- 238000012544 monitoring process Methods 0.000 claims description 10
- 230000002378 acidificating effect Effects 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 4
- 239000002002 slurry Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/40—Combinations of devices covered by groups B01D45/00 and B01D47/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
- F28C1/02—Direct-contact trickle coolers, e.g. cooling towers with counter-current only
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
- F28F25/02—Component parts of trickle coolers for distributing, circulating, and accumulating liquid
- F28F25/08—Splashing boards or grids, e.g. for converting liquid sprays into liquid films; Elements or beds for increasing the area of the contact surface
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Gas Separation By Absorption (AREA)
- Treating Waste Gases (AREA)
- Cyclones (AREA)
Abstract
本发明公开了一种尾气余热吸收净化分离装置及方法，包括尾气余热吸收塔，尾气余热吸收塔的底端设有循环水出口，最上层塔盘与尾气出口之间设有喷淋装置，喷淋装置与进水管的一端连通，进水管的另一端通过换热器与循环水出口连通；尾气出口通过第一管道与净化分离装置的左端连通，净化分离装置为右端缩口结构，净化分离装置内壁圆周方向上设有若干高压喷嘴；净化分离装置的第一出口通过第二管道与旋风分离装置的进气口连通，净化分离装置的第二出口与旋风分离装置的底部出口均与废液罐连通。通过尾气余热吸收塔处理，将尾气余热进行回收利用，尾气余热吸收塔、净化分离装置及旋风分离装置的联合使用，可净化尾气中99%以上的杂质，保证尾气达标排放。
The invention discloses a tail gas waste heat absorption, purification and separation device and method, comprising a tail gas waste heat absorption tower, a circulating water outlet is provided at the bottom of the tail gas waste heat absorption tower, a spraying device is provided between the uppermost tray and the tail gas outlet, The shower device is connected with one end of the water inlet pipe, and the other end of the water inlet pipe is connected with the circulating water outlet through the heat exchanger; the tail gas outlet is connected with the left end of the purification and separation device through the first pipe, and the purification and separation device has a shrinking structure at the right end, and the purification and separation device A number of high-pressure nozzles are arranged on the circumferential direction of the inner wall; the first outlet of the purification and separation device communicates with the air inlet of the cyclone separation device through the second pipeline, and the second outlet of the purification and separation device and the bottom outlet of the cyclone separation device are connected to the waste liquid tank. connected. The tail gas waste heat is recycled and utilized through the treatment of the tail gas waste heat absorption tower. The combined use of the tail gas waste heat absorption tower, purification and separation device and cyclone separation device can purify more than 99% of the impurities in the tail gas and ensure that the tail gas is discharged up to the standard.
Description
技术领域technical field
本发明涉及尾气处理技术领域，具体来说，涉及一种尾气余热吸收净化分离装置及方法。The invention relates to the technical field of tail gas treatment, in particular to a tail gas waste heat absorption purification separation device and method.
背景技术Background technique
目前，在化工、冶炼生产过程中会形成大的酸性气体和颗粒物，这些气体如果排放到大气中，会严重影响生态环境，因此对于气体的污染问题，受到了国家和企业的高度重视，国家出台相关规定，要求企业排放必须达标。At present, large acid gases and particulate matter are formed in the chemical and smelting production processes. If these gases are discharged into the atmosphere, they will seriously affect the ecological environment. Therefore, the state and enterprises have attached great importance to the problem of gas pollution. Relevant regulations require enterprises to meet emission standards.
1. 现有尾气处理技术，主要是将气体中的各种杂质进行分离，而没有对尾气中的热量进行有效回收利用，大量高温气体被直接排出，严重污染当地环境且造成热量的损失和浪费。1. The existing tail gas treatment technology mainly separates various impurities in the gas without effectively recycling the heat in the tail gas. A large amount of high-temperature gas is directly discharged, which seriously pollutes the local environment and causes heat loss and waste. .
2. 现有尾气处理技术，主要是将气体中的固体微粒和粉尘进行收集和分离，但对于工业尾气中的酸性、碱性介质无法进行分离，严重污染当地环境。2. The existing tail gas treatment technology mainly collects and separates the solid particles and dust in the gas, but it cannot separate the acidic and alkaline media in the industrial tail gas, which seriously pollutes the local environment.
3. 现有尾气处理技术，有些对于酸性气体进行水洗操作，洗水量巨大，浪费严重。3. Some of the existing tail gas treatment technologies perform water washing operations on acid gases, and the amount of washing water is huge and the waste is serious.
针对相关技术中的问题，目前尚未提出有效的解决方案。Aiming at the problems in the related technologies, no effective solution has been proposed yet.
发明内容Contents of the invention
针对相关技术中的上述技术问题，本发明提出一种尾气余热吸收净化分离装置及方法，能够解决上述技术问题。In view of the above-mentioned technical problems in the related art, the present invention proposes a tail gas waste heat absorption purification separation device and method, which can solve the above-mentioned technical problems.
为实现上述技术目的，本发明的技术方案是这样实现的：For realizing above-mentioned technical purpose, technical scheme of the present invention is realized like this:
一种尾气余热吸收净化分离装置，包括尾气余热吸收塔，所述尾气余热吸收塔的下侧设有尾气进口，所述尾气余热吸收塔的上侧设有尾气出口，所述尾气余热吸收塔的底端设有循环水出口，所述尾气余热吸收塔内间隔设有若干层塔盘，所述若干层塔盘上均填充有填料, 所述尾气余热吸收塔内最上层塔盘与所述尾气出口之间设有喷淋装置，所述喷淋装置与进水管的一端连通，所述进水管的另一端通过换热器与循环水出口连通,；所述尾气出口通过第一管道与净化分离装置的左端连通，所述净化分离装置为右端缩口结构，所述净化分离装置内壁圆周方向上设有若干高压喷嘴，所述若干高压喷嘴的出水方向均朝向所述若干高压喷嘴围成的圆形截面的圆心；所述净化分离装置的第一出口通过第二管道与旋风分离装置的进气口连通，所述净化分离装置的第二出口与所述旋风分离装置的底部出口均与废液罐连通。A tail gas waste heat absorption, purification and separation device, comprising a tail gas waste heat absorption tower, the tail gas waste heat absorption tower is provided with a tail gas inlet on the lower side, and the tail gas waste heat absorption tower is provided with a tail gas outlet, and the tail gas waste heat absorption tower is provided with The bottom end is provided with a circulating water outlet, and several layers of trays are arranged at intervals in the tail gas waste heat absorption tower, and the several layers of trays are filled with fillers, and the uppermost tray in the tail gas waste heat absorption tower is connected with the tail gas There is a spraying device between the outlets, the spraying device communicates with one end of the water inlet pipe, and the other end of the water inlet pipe communicates with the circulating water outlet through a heat exchanger; the exhaust gas outlet is separated from the purification through the first pipe The left end of the device is connected, and the purification and separation device is a shrinking structure at the right end. Several high-pressure nozzles are arranged on the inner wall of the purification and separation device. The center of circle of the shaped section; the first outlet of the purification separation device is communicated with the air inlet of the cyclone separation device through the second pipeline, and the second outlet of the purification separation device and the bottom outlet of the cyclone separation device are all connected to the waste liquid Tank connected.
进一步地，所述进水管与换热器之间连接有循环水箱。Further, a circulating water tank is connected between the water inlet pipe and the heat exchanger.
进一步地，所述第一管道上设有第一压力表，所述第二管道上设有第二压力表。Further, the first pipeline is provided with a first pressure gauge, and the second pipeline is provided with a second pressure gauge.
进一步地，所述净化分离装置采用文丘里管。Further, the purification and separation device adopts a Venturi tube.
进一步地，所述净化分离装置上设有气流调节阀。Further, the purification and separation device is provided with an air flow regulating valve.
进一步地，所述旋风分离装置的顶部安装有排气管，所述排气管内上侧设有除尘器，所述排气管出口处设有监测仪表。Further, an exhaust pipe is installed on the top of the cyclone separation device, a dust collector is installed on the upper side of the exhaust pipe, and a monitoring instrument is installed at the outlet of the exhaust pipe.
一种尾气余热吸收净化分离方法，包括以下步骤：A tail gas waste heat absorption purification separation method, comprising the following steps:
S1.余热吸收：尾气进入尾气余热吸收塔，所述尾气余热吸收塔内自下向上流动的尾气与自上向下流动的水接触交换热量；S1. Waste heat absorption: tail gas enters the tail gas waste heat absorption tower, and the tail gas flowing from bottom to top in the tail gas waste heat absorption tower contacts and exchanges heat with water flowing from top to bottom;
S2.将经过步骤S1处理后的尾气进入右端缩口结构的净化分离装置，净化分离装置内的高压喷嘴喷出的水在高速气流的冲击下，冲击成微小液滴，尾气中的酸性和/或碱性物质、微小颗粒及杂质吸附到微小液滴里，形成较大的液滴，较大的液滴再逐步碰撞变大后，一部分被分离下来排入废液罐，一部分进入旋风分离装置；S2. The tail gas processed in step S1 enters the purification and separation device with the necking structure at the right end, and the water ejected from the high-pressure nozzle in the purification and separation device is impacted into tiny droplets under the impact of the high-speed air flow, and the acidity and/or acidity in the tail gas Or alkaline substances, tiny particles and impurities are adsorbed into tiny droplets to form larger droplets. After the larger droplets gradually collide and become larger, part of them are separated and discharged into the waste liquid tank, and part of them enter the cyclone separation device ;
S3.将经过步骤S2处理后的尾气进入旋风分离装置，尾气在旋风分离装置沿内壁做离心运动，大密度颗粒由于离心力作用被甩到旋风分离装置内壁上，然后沿内壁下落，由旋风分离装置底部出口进入废液罐，洁净的尾气从旋风分离装置顶部排出，其中所述大密度颗粒包括固体微粒、粉尘和步骤S2中进入旋风分离装置部分的液滴。S3. The tail gas processed in step S2 enters the cyclone separation device, and the tail gas is centrifugally moved along the inner wall of the cyclone separation device, and the large-density particles are thrown onto the inner wall of the cyclone separation device due to centrifugal force, and then fall along the inner wall, and are separated by the cyclone separation device The bottom outlet enters the waste liquid tank, and the clean tail gas is discharged from the top of the cyclone separation device, wherein the large-density particles include solid particles, dust and liquid droplets entering the cyclone separation device in step S2.
进一步地，经过步骤S1处理后水从所述尾气余热吸收塔的底部排出，排出的水一部分通过换热器后自循环，一部分水用于加热其他工段矿浆。Further, after the treatment in step S1, the water is discharged from the bottom of the tail gas waste heat absorption tower, part of the discharged water passes through the heat exchanger and then self-circulates, and part of the water is used to heat the pulp in other sections.
进一步地，经过步骤S3处理后的尾气经过除尘器并由监测仪表监测达标后排出。Further, the exhaust gas processed in step S3 passes through the dust collector and is discharged after being monitored by the monitoring instrument to reach the standard.
本发明的有益效果：通过尾气余热吸收塔处理后，可以将80%的尾气余热进行回收利用，节能环保；通过使用气流调节阀及第一压力表和第二压力表，可以满足工艺气量的巨大波动，保证工艺系统的操作稳定性；尾气余热吸收塔、净化分离装置及旋风分离装置的联合使用，可净化尾气中99%以上的杂质，保证尾气达标排放，可以用于各类工业废气的余热回收和净化分离工序，对于酸性碱性及各种有害杂质均有极强的适应能力；例外结构简单、操作方便、自动化程度高。Beneficial effects of the present invention: 80% of the waste heat of the tail gas can be recycled and utilized after being treated by the waste heat absorption tower of the tail gas, which is energy-saving and environment-friendly; by using the air flow regulating valve and the first pressure gauge and the second pressure gauge, the huge process gas volume can be satisfied Fluctuation, to ensure the operational stability of the process system; the joint use of tail gas waste heat absorption tower, purification and separation device and cyclone separation device can purify more than 99% of impurities in the tail gas, ensure that the tail gas meets the standard discharge, and can be used for waste heat of various industrial waste gases The recovery and purification separation process has strong adaptability to acidity, alkalinity and various harmful impurities; the exception is simple structure, convenient operation and high degree of automation.
附图说明Description of drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the embodiments. Obviously, the accompanying drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.
图1是根据本发明实施例所述的一种尾气余热吸收净化分离装置的结构示意图。Fig. 1 is a schematic structural diagram of an exhaust gas waste heat absorption, purification and separation device according to an embodiment of the present invention.
图中：1.尾气余热吸收塔；2.尾气进口；3.尾气出口；4.循环水出口；5.喷淋装置；6.进水管；7.换热器；8.净化分离装置；9.高压喷嘴；10. 旋风分离装置；11.废液罐；12.第一压力表；13.第二压力表；14.气流调节阀；15.排气管；16.除尘器；17.循环水箱；18.监测仪表；19.塔盘。In the figure: 1. Tail gas waste heat absorption tower; 2. Tail gas inlet; 3. Tail gas outlet; 4. Circulating water outlet; 5. Spray device; 6. Water inlet pipe; 7. Heat exchanger; 8. Purification and separation device; .High pressure nozzle; 10. Cyclone separation device; 11. Waste liquid tank; 12. First pressure gauge; 13. Second pressure gauge; 14. Airflow regulating valve; 15. Exhaust pipe; 16. Dust collector; 17. Circulation Water tank; 18. Monitoring instrument; 19. Tray.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员所获得的所有其他实施例，都属于本发明保护的范围。The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.
如图1所示，根据本发明实施例所述的一种尾气余热吸收净化分离装置，包括尾气余热吸收塔1，所述尾气余热吸收塔1的下侧设有尾气进口2，所述尾气余热吸收塔1的上侧设有尾气出口3，所述尾气余热吸收塔1的底端设有循环水出口4，所述尾气余热吸收塔1内间隔设有若干层塔盘19，所述若干层塔盘19上均填充有填料, 所述尾气余热吸收塔1内最上层塔盘19与所述尾气出口3之间设有喷淋装置5，所述喷淋装置5与进水管6的一端连通，所述进水管6的另一端通过换热器7与循环水出口4连通,；所述尾气出口3通过第一管道与净化分离装置8的左端连通，所述净化分离装置8为右端缩口结构，所述净化分离装置8内壁圆周方向上设有若干高压喷嘴9，所述若干高压喷嘴9的出水方向均朝向所述若干高压喷嘴9围成的圆形截面的圆心；所述净化分离装置8的第一出口通过第二管道与旋风分离装置10的进气口连通，所述净化分离装置8的第二出口与所述旋风分离装置10的底部出口均与废液罐11连通。As shown in Figure 1, a tail gas waste heat absorption purification separation device according to an embodiment of the present invention includes a tail gas waste heat absorption tower 1, and a tail gas inlet 2 is arranged on the lower side of the tail gas waste heat absorption tower 1, and the tail gas waste heat The upper side of the absorption tower 1 is provided with a tail gas outlet 3, and the bottom end of the tail gas waste heat absorption tower 1 is provided with a circulating water outlet 4, and several layers of trays 19 are arranged at intervals in the tail gas waste heat absorption tower 1. The trays 19 are all filled with fillers, and a spray device 5 is provided between the uppermost tray 19 in the tail gas waste heat absorption tower 1 and the tail gas outlet 3, and the spray device 5 communicates with one end of the water inlet pipe 6 , the other end of the water inlet pipe 6 communicates with the circulating water outlet 4 through the heat exchanger 7; the tail gas outlet 3 communicates with the left end of the purification and separation device 8 through the first pipeline, and the purification and separation device 8 is a shrinking port at the right end structure, the inner wall of the purifying and separating device 8 is provided with several high-pressure nozzles 9, and the water outlet directions of the several high-pressure nozzles 9 are all towards the center of the circular section surrounded by the several high-pressure nozzles 9; the purifying and separating device The first outlet of 8 communicates with the air inlet of the cyclone separation device 10 through the second pipeline, and the second outlet of the purification separation device 8 and the bottom outlet of the cyclone separation device 10 communicate with the waste liquid tank 11 .
所述进水管6与换热器7之间连接有循环水箱17。A circulating water tank 17 is connected between the water inlet pipe 6 and the heat exchanger 7 .
所述第一管道上设有第一压力表12，所述第二管道上设有第二压力表13。A first pressure gauge 12 is provided on the first pipeline, and a second pressure gauge 13 is provided on the second pipeline.
所述净化分离装置8采用文丘里管。The purification and separation device 8 adopts a Venturi tube.
所述净化分离装置8上设有气流调节阀14。The purification and separation device 8 is provided with an air flow regulating valve 14 .
所述旋风分离装置10的顶部安装有排气管15，所述排气管15内上侧设有除尘器16，所述排气管15出口处设有监测仪表18。An exhaust pipe 15 is installed on the top of the cyclone separation device 10 , a dust collector 16 is provided on the upper side of the exhaust pipe 15 , and a monitoring instrument 18 is provided at the outlet of the exhaust pipe 15 .
一种尾气余热吸收净化分离方法，包括以下步骤：A tail gas waste heat absorption purification separation method, comprising the following steps:
S1.余热吸收：尾气进入尾气余热吸收塔1，所述尾气余热吸收塔1内自下向上流动的尾气与自上向下流动的水接触交换热量；S1. Waste heat absorption: the tail gas enters the tail gas waste heat absorption tower 1, and the tail gas flowing from bottom to top in the tail gas waste heat absorption tower 1 contacts and exchanges heat with water flowing from top to bottom;
S2.将经过步骤S1处理后的尾气进入右端缩口结构的净化分离装置，净化分离装置内的高压喷嘴喷出的水在高速气流的冲击下，冲击成微小液滴，尾气中的酸性和/或碱性物质、微小颗粒及杂质吸附到微小液滴里，形成较大的液滴，较大的液滴再逐步碰撞变大后，一部分被分离下来排入废液罐，一部分进入旋风分离装置；S2. The tail gas processed in step S1 enters the purification and separation device with the necking structure at the right end, and the water ejected from the high-pressure nozzle in the purification and separation device is impacted into tiny droplets under the impact of the high-speed air flow, and the acidity and/or acidity in the tail gas Or alkaline substances, tiny particles and impurities are adsorbed into tiny droplets to form larger droplets. After the larger droplets gradually collide and become larger, part of them are separated and discharged into the waste liquid tank, and part of them enter the cyclone separation device ;
S3.将经过步骤S2处理后的尾气进入旋风分离装置，尾气在旋风分离装置沿内壁做离心运动，大密度颗粒由于离心力作用被甩到旋风分离装置内壁上，然后沿内壁下落，由旋风分离装置底部出口进入废液罐，洁净的尾气从旋风分离装置顶部排出，其中所述大密度颗粒包括固体微粒、粉尘和步骤S2中进入旋风分离装置部分的液滴。S3. The tail gas processed in step S2 enters the cyclone separation device, and the tail gas is centrifugally moved along the inner wall of the cyclone separation device, and the large-density particles are thrown onto the inner wall of the cyclone separation device due to centrifugal force, and then fall along the inner wall, and are separated by the cyclone separation device The bottom outlet enters the waste liquid tank, and the clean tail gas is discharged from the top of the cyclone separation device, wherein the large-density particles include solid particles, dust and liquid droplets entering the cyclone separation device in step S2.
经过步骤S1处理后水从所述尾气余热吸收塔1的底部排出，排出的水一部分通过换热器7后自循环，一部分水用于加热其他工段矿浆。After the treatment in step S1, the water is discharged from the bottom of the tail gas waste heat absorption tower 1, part of the discharged water passes through the heat exchanger 7 and then self-circulates, and part of the water is used to heat the pulp in other sections.
经过步骤S3处理后的尾气经过除尘器16并由监测仪表18监测达标后排出。The tail gas processed in step S3 passes through the dust collector 16 and is discharged after being monitored by the monitoring instrument 18 to meet the standard.
为了方便理解本发明的上述技术方案，以下通过具体使用方式上对本发明的上述技术方案进行详细说明。In order to facilitate the understanding of the above-mentioned technical solution of the present invention, the above-mentioned technical solution of the present invention will be described in detail below through a specific usage mode.
在具体使用时，根据本发明所述的尾气从尾气余热吸收塔1的底部进入后向上流动，循环水从顶部经过喷淋装置5，如采用喷淋管，均匀洒下。尾气余热吸收塔1内部布置有多层塔盘19，塔盘19内有填料，能有助于尾气与循环水的充分接触换热，尾气与循环水为错流运动。循环水经底部循环水出口4进入换热器7后再次循环利用，降温后的尾气从上侧尾气出口3进入净化分离装置8，其中，经过尾气余热吸收塔1换热处理后从尾气余热吸收塔1的底部排出的水进行再次利用，排出的水一部分通过换热器7后自循环，即排出的水一部分经过换热器7降温后再通过进水管6循环到喷淋装置5，一部分水用于可以经过换热器7处理到所需要的温度后加热其他工段矿浆，如果该部分水的温度正好适合某一工段所需水的温度，则可直接利用于该工段，进而避免大量高温气体被直接排出，严重污染当地环境的同时又对尾气中的热量进行有效回收利用。In actual use, the tail gas according to the present invention enters from the bottom of the tail gas waste heat absorption tower 1 and then flows upwards, and the circulating water passes through the spraying device 5 from the top, and is sprinkled evenly if a spraying pipe is used. The tail gas waste heat absorption tower 1 is equipped with multi-layer trays 19 inside, and there are fillers in the trays 19, which can help the full contact and heat exchange between the tail gas and the circulating water, and the tail gas and the circulating water are in cross-flow movement. The circulating water enters the heat exchanger 7 through the bottom circulating water outlet 4 and is recycled again. The cooled tail gas enters the purification and separation device 8 from the upper tail gas outlet 3, wherein, after heat exchange treatment in the tail gas waste heat absorption tower 1, the waste heat is absorbed from the tail gas The water discharged from the bottom of the tower 1 is reused. Part of the discharged water passes through the heat exchanger 7 and then self-circulates. It can be used to heat the slurry in other sections after being processed to the required temperature by the heat exchanger 7. If the temperature of this part of water is just suitable for the temperature of the water required by a certain section, it can be directly used in this section, thereby avoiding a large amount of high-temperature gas It is directly discharged, which seriously pollutes the local environment and at the same time effectively recovers and utilizes the heat in the exhaust gas.
尾气进入净化分离装置8后，净化分离装置8采用收缩管，优选用文丘里管，右端缩口结构，缩口结构可以增大净化分离装置8内尾气的流速，净化分离装置8内壁圆周方向上设有若干高压喷嘴9，若干高压喷嘴9的出水方向均朝向所述若干高压喷嘴9围成的圆形截面的圆心。高压喷嘴9喷出的水在高速气流的作用下，高速气流把水冲击成微小液滴，因为水滴具有极大的表面积，尾气中的酸性和/或碱性物质、微小颗粒及杂质会吸附到微小液滴里形成较大的液滴，其中，酸性和/或碱性物质指:如果尾气中有酸性物质，酸性物质会吸附到微小液滴里，如果尾气中有碱性物质，碱性物质会吸附到微小液滴里，如果尾气中既有酸性物质又有碱性物质，则酸性物质和有碱性物质都会吸附到微小液滴里，杂质包括一些油、离子态物质等。较大的液滴再逐步碰撞变大后，其中一小部分被分离下来排入废液罐11，大部分会随着高速气流的作用进入旋风分离装置10。由于高速的气流，使得高压喷嘴9喷出水处理尾气后绝大部分会直接进入旋风分离装置10，而不会有大量的水存于净化分离装置8内，在净化分离装置8内设置有气流调节阀14，能控制收缩管管道内的气体流通截面积，以气体流动的压力损失为标准，控制酸性物质和/或碱性物质的净化分离效率。After the exhaust gas enters the purification and separation device 8, the purification and separation device 8 adopts a shrinking tube, preferably a Venturi tube, with a necking structure at the right end. The necking structure can increase the flow rate of the exhaust gas in the purification and separation device 8. A plurality of high-pressure nozzles 9 are provided, and the water outlet directions of the plurality of high-pressure nozzles 9 all face the center of the circular section surrounded by the plurality of high-pressure nozzles 9 . The water ejected from the high-pressure nozzle 9 is under the action of the high-speed airflow, and the high-speed airflow impacts the water into tiny droplets. Because the water droplets have a large surface area, the acidic and/or alkaline substances, tiny particles and impurities in the exhaust gas will be adsorbed to the Larger droplets are formed in tiny droplets. Among them, acidic and/or alkaline substances refer to: if there are acidic substances in the exhaust gas, the acidic substances will be absorbed into the tiny droplets; if there are alkaline substances in the exhaust gas, the alkaline substances It will be adsorbed into tiny droplets. If there are both acidic substances and alkaline substances in the exhaust gas, both acidic substances and alkaline substances will be adsorbed into tiny droplets. Impurities include some oils, ionic substances, etc. After larger droplets gradually collide and become larger, a small part of them is separated and discharged into the waste liquid tank 11, and most of them will enter the cyclone separation device 10 with the action of the high-speed airflow. Due to the high-speed air flow, most of the water treatment tail gas sprayed from the high-pressure nozzle 9 will directly enter the cyclone separation device 10, and there will not be a large amount of water stored in the purification separation device 8, and an air flow is provided in the purification separation device 8 The regulating valve 14 can control the cross-sectional area of gas circulation in the shrink tube, and control the purification and separation efficiency of acidic substances and/or alkaline substances based on the pressure loss of gas flow.
经过步骤S2处理后的尾气，进入旋风分离装置10，旋风分离装置10具有较高的切向速度，尾气在旋风分离装置10沿内壁做离心运动，固体微粒和粉尘等大密度颗粒由于离心力作用被甩到旋风分离装置10内壁上，然后沿内壁下落，由底部出口进入废液罐11，洁净尾气向上经过除尘器16，再次深层净化后，实现了尾气杂质的彻底净化分离，最后通过监测仪表18监测达标气体从顶部排出，监测仪表18可以实时监测排气中的杂质含量，并将数据转送给数据中心。The tail gas processed in step S2 enters the cyclone separation device 10. The cyclone separation device 10 has a relatively high tangential velocity. The tail gas moves centrifugally along the inner wall of the cyclone separation device 10. Large-density particles such as solid particles and dust are blown by centrifugal force. It is thrown onto the inner wall of the cyclone separation device 10, then falls along the inner wall, and enters the waste liquid tank 11 from the bottom outlet. The clean tail gas passes through the dust collector 16 upwards, and after deep purification again, the exhaust gas impurities are completely purified and separated. Finally, it passes through the monitoring instrument 18 The monitoring standard gas is discharged from the top, and the monitoring instrument 18 can monitor the impurity content in the exhaust gas in real time, and transmit the data to the data center.
综上所述，借助于本发明的上述技术方案，通过尾气余热吸收塔处理后，可以将80%的尾气余热进行回收利用，节能环保；通过使用气流调节阀及第一压力表和第二压力表，可以满足工艺气量的巨大波动，保证工艺系统的操作稳定性；尾气余热吸收塔、净化分离装置及旋风分离装置的联合使用，可净化尾气中99%以上的杂质，保证尾气达标排放，可以用于各类工业废气的余热回收和净化分离工序，对于酸性碱性及各种有害杂质均有极强的适应能力；例外结构简单、操作方便、自动化程度高。In summary, with the help of the above technical proposal of the present invention, 80% of the waste heat of the tail gas can be recycled after being treated by the waste heat absorption tower of the tail gas, which is energy-saving and environmentally friendly; The table can meet the huge fluctuation of process gas volume and ensure the operation stability of the process system; the joint use of tail gas waste heat absorption tower, purification and separation device and cyclone separation device can purify more than 99% of impurities in the tail gas and ensure that the tail gas is discharged up to the standard. It is used in the waste heat recovery and purification and separation process of various industrial waste gases. It has strong adaptability to acidity, alkalinity and various harmful impurities; the exception is simple structure, convenient operation and high degree of automation.
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810908047.6A CN108926968A (en) | 2018-08-10 | 2018-08-10 | A kind of waste heat from tail gas absorption cleaning separator and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810908047.6A CN108926968A (en) | 2018-08-10 | 2018-08-10 | A kind of waste heat from tail gas absorption cleaning separator and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108926968A true CN108926968A (en) | 2018-12-04 |
Family
ID=64445969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810908047.6A Pending CN108926968A (en) | 2018-08-10 | 2018-08-10 | A kind of waste heat from tail gas absorption cleaning separator and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108926968A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111287810A (en) * | 2020-03-23 | 2020-06-16 | 安徽誉特双节能技术有限公司 | Tail gas purification device of steam turbine system |
| CN114279172A (en) * | 2021-12-27 | 2022-04-05 | 郑州博大浓缩干燥设备有限公司 | Novel efficient energy-saving environment-friendly airflow drying system |
| CN115155265A (en) * | 2022-06-22 | 2022-10-11 | 清远市嘉禾稀有金属有限公司 | Tail gas treatment equipment with waste heat recycling function |
| CN119701537A (en) * | 2025-03-03 | 2025-03-28 | 云南养瑞科技集团有限公司 | System for large-scale treatment coffee roasting equipment tail gas |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201799202U (en) * | 2010-08-24 | 2011-04-20 | 韩晓涛 | Combined waste gas treatment device of tornado tower |
| CN103736354A (en) * | 2014-01-23 | 2014-04-23 | 南通明诺机械有限公司 | All-weather wet dust removal device for sweeper and combined dust removal treatment method |
| CN203620462U (en) * | 2013-12-19 | 2014-06-04 | 宜兴新威利成稀土有限公司 | Rare-earth waste gas spraying wastewater recycling device |
| CN104197727A (en) * | 2014-08-13 | 2014-12-10 | 湖州宏鑫铝业有限公司 | System and method for treating tail gas of aluminum smelting furnace |
| CN104215091A (en) * | 2013-05-31 | 2014-12-17 | 中国电力工程顾问集团华北电力设计院工程有限公司 | Flue gas afterheat and water recycling device |
| CN204395698U (en) * | 2014-12-16 | 2015-06-17 | 中国华能集团清洁能源技术研究院有限公司 | The ultra-clean Wet-way dust-collector of a kind of power-plant flue gas |
| US20160089626A1 (en) * | 2014-09-26 | 2016-03-31 | Carollo Engineers, Inc. | Gas scrubber system and method |
| CN205979840U (en) * | 2016-07-15 | 2017-02-22 | 大唐(北京)能源管理有限公司 | Absorption formula residual heat from flue gas system sprays |
| US20170283287A1 (en) * | 2013-11-20 | 2017-10-05 | Klaus Nonnenmacher | Method of and apparatus for oxidative treatment of liquid, gaseous, and/or solid phase |
| CN107245343A (en) * | 2017-06-20 | 2017-10-13 | 中冶焦耐(大连)工程技术有限公司 | A high-temperature steam treatment method for wet coke quenching |
| CN206958947U (en) * | 2017-07-10 | 2018-02-02 | 倪飞 | Low-temperature flue gas waste heat retracting device |
| CN107860017A (en) * | 2017-11-02 | 2018-03-30 | 朱峰 | A kind of combustion furnace tail gas clean-up processing utilizes device |
| CN208824210U (en) * | 2018-08-10 | 2019-05-07 | 陈文品 | A kind of waste heat from tail gas absorption cleaning separator |
-
2018
- 2018-08-10 CN CN201810908047.6A patent/CN108926968A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201799202U (en) * | 2010-08-24 | 2011-04-20 | 韩晓涛 | Combined waste gas treatment device of tornado tower |
| CN104215091A (en) * | 2013-05-31 | 2014-12-17 | 中国电力工程顾问集团华北电力设计院工程有限公司 | Flue gas afterheat and water recycling device |
| US20170283287A1 (en) * | 2013-11-20 | 2017-10-05 | Klaus Nonnenmacher | Method of and apparatus for oxidative treatment of liquid, gaseous, and/or solid phase |
| CN203620462U (en) * | 2013-12-19 | 2014-06-04 | 宜兴新威利成稀土有限公司 | Rare-earth waste gas spraying wastewater recycling device |
| CN103736354A (en) * | 2014-01-23 | 2014-04-23 | 南通明诺机械有限公司 | All-weather wet dust removal device for sweeper and combined dust removal treatment method |
| CN104197727A (en) * | 2014-08-13 | 2014-12-10 | 湖州宏鑫铝业有限公司 | System and method for treating tail gas of aluminum smelting furnace |
| US20160089626A1 (en) * | 2014-09-26 | 2016-03-31 | Carollo Engineers, Inc. | Gas scrubber system and method |
| CN204395698U (en) * | 2014-12-16 | 2015-06-17 | 中国华能集团清洁能源技术研究院有限公司 | The ultra-clean Wet-way dust-collector of a kind of power-plant flue gas |
| CN205979840U (en) * | 2016-07-15 | 2017-02-22 | 大唐(北京)能源管理有限公司 | Absorption formula residual heat from flue gas system sprays |
| CN107245343A (en) * | 2017-06-20 | 2017-10-13 | 中冶焦耐(大连)工程技术有限公司 | A high-temperature steam treatment method for wet coke quenching |
| CN206958947U (en) * | 2017-07-10 | 2018-02-02 | 倪飞 | Low-temperature flue gas waste heat retracting device |
| CN107860017A (en) * | 2017-11-02 | 2018-03-30 | 朱峰 | A kind of combustion furnace tail gas clean-up processing utilizes device |
| CN208824210U (en) * | 2018-08-10 | 2019-05-07 | 陈文品 | A kind of waste heat from tail gas absorption cleaning separator |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111287810A (en) * | 2020-03-23 | 2020-06-16 | 安徽誉特双节能技术有限公司 | Tail gas purification device of steam turbine system |
| CN114279172A (en) * | 2021-12-27 | 2022-04-05 | 郑州博大浓缩干燥设备有限公司 | Novel efficient energy-saving environment-friendly airflow drying system |
| CN115155265A (en) * | 2022-06-22 | 2022-10-11 | 清远市嘉禾稀有金属有限公司 | Tail gas treatment equipment with waste heat recycling function |
| CN119701537A (en) * | 2025-03-03 | 2025-03-28 | 云南养瑞科技集团有限公司 | System for large-scale treatment coffee roasting equipment tail gas |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108926968A (en) | A kind of waste heat from tail gas absorption cleaning separator and method | |
| CN203075827U (en) | A low-resistance, water-saving catalytic cracking flue gas absorption tower | |
| CN206430578U (en) | A kind of vent gas treatment tower | |
| CN108786398A (en) | Flue gas desulfurization regenerates integrated tower and Regeneratable wet fuel gas desulfurizing method | |
| CN208824210U (en) | A kind of waste heat from tail gas absorption cleaning separator | |
| CN201969484U (en) | Trimeric sodium phosphate tail gas washing device | |
| CN104606989B (en) | High-gravity technology processes dust device | |
| CN206121390U (en) | Wet -type dust collector | |
| CN102949906A (en) | Tail gas treatment device for sulfonation reaction and its application | |
| CN202006073U (en) | Tail gas spraying dust removal tower | |
| CN115999297A (en) | Automatic flue gas treatment device | |
| CN221906354U (en) | Spray tower for rubber waste gas treatment | |
| CN105709540A (en) | High-efficiency spray-type water film desulphurization deduster | |
| CN117983039B (en) | Amine liquid carbon trapping system and method | |
| CN205379776U (en) | Wet process sprays whirl integration air purification device | |
| CN221015207U (en) | Low-energy-consumption wet-type variable flow dust removal and deep purification integrated tower | |
| CN220159576U (en) | An exhaust gas treatment device | |
| CN217829407U (en) | Flue gas CO 2 Gathering pretreatment tower | |
| CN207694528U (en) | Industrial tail gas flue dust and formaldehyde comprehensive treatment system | |
| CN2843595Y (en) | Multi-stage spiral-plate leaf desulfurizing dust collector | |
| CN211713030U (en) | Venturi cooling scrubber | |
| CN105251303B (en) | A counter-rotary wet dust collector | |
| CN211302512U (en) | Spray tower for chemical production | |
| CN214004695U (en) | Blast Furnace Gas Acid Corrosive Gas Component Removal System | |
| CN209173730U (en) | A flue gas desulfurization absorption tower with a two-stage airflow distribution device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181204 |
|
| RJ01 | Rejection of invention patent application after publication |