CN114291860B - Laboratory organic waste liquid pyrolysis system - Google Patents
Laboratory organic waste liquid pyrolysis system Download PDFInfo
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- CN114291860B CN114291860B CN202210112762.5A CN202210112762A CN114291860B CN 114291860 B CN114291860 B CN 114291860B CN 202210112762 A CN202210112762 A CN 202210112762A CN 114291860 B CN114291860 B CN 114291860B
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- 239000002699 waste material Substances 0.000 claims abstract description 159
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- Treating Waste Gases (AREA)
Abstract
The invention provides a laboratory organic waste liquid cracking system, wherein a flame stabilizer (112) is distributed in a waste liquid reaction device (1), and an air pipe is arranged at the periphery of the flame stabilizer; a liquid sprayer is arranged on the waste liquid reaction device (1); the central line intersection point of the liquid sprayer is right-hand relative to the central line of the flame holder; -providing a flow arch (123), the flow arch (123) being located above the flame holder (121); the waste liquid sprayed into the waste liquid reaction device (1) through the liquid spraying device enters the waste heat recovery device (2) for preliminary cooling, enters the flue gas quenching and desulfurizing integrated device (3) for quenching and desulfurizing, then flows through the flue gas dehydration device (4) for removing the moisture contained in the flue gas, and finally is filtered by the flue gas purification device (5) for removing the residual harmful components. The invention can ensure the requirement of the primary waste liquid reaction on the space section and the requirement of the subsequent reaction on the temperature.
Description
Technical Field
The invention belongs to the technical field of organic waste liquid experimental equipment, and relates to a laboratory organic waste liquid cracking system.
Background
Along with the rapid development of scientific technology in China, laboratories of universities, scientific research institutions and enterprises are continuously expanded, and the types, the numbers and the scales of the laboratories are also continuously increased, so that the pollution problem caused by laboratory wastes is caused. Laboratory waste mainly comprises solid waste, waste liquid, waste gas, biological pollutants of viruses and pathogenic bacteria and the like. Laboratory waste in universities has high toxicity and high hazard, but the environmental protection department does not include environmental protection detection projects, and even if the laboratory waste is included, the laboratory waste is difficult to detect due to small quantity and easy dilution by domestic sewage.
Laboratory waste liquid mainly comes from scientific research and teaching laboratories of various scientific research institutions and higher institutions. Laboratory waste has its own special properties: the amount is small, the intermittence is strong, the damage is high, and the components are complex and changeable. The waste liquid can be classified into laboratory organic and inorganic waste liquid according to the nature of the main pollutants contained in the waste liquid. The inorganic waste liquid mainly contains heavy metal, heavy metal complex, acid and alkali, cyanide, sulfide, halogen ions, other inorganic ions and the like. The organic waste liquid contains common organic solvents, organic acids, ethers, polychlorinated biphenyls, organic phosphorus compounds, phenols, petroleum and grease substances. In comparison, the organic waste liquid has wider pollution range than the inorganic waste liquid, and the hazard is more serious. Different waste solutions, different pollutant compositions, and different treatment methods and effects. The treatment of laboratory waste liquid is based on classified collection, on-site and timely in-situ treatment, simple operation and the principle of treating waste and reducing cost.
At present, the common mode of treating laboratory organic waste liquid is centralized collection and then conveying to a treatment mechanism for treatment, the method has potential safety hazards such as leakage and the like in the waste treatment, and a professional treatment company has complicated treatment process and high cost aiming at organic waste liquid with various different components.
There is therefore a great need for a laboratory waste reaction system that can address the in situ real-time treatment of laboratory organic waste.
Disclosure of Invention
Aiming at the defects of untimely waste treatment, potential safety hazards such as leakage and the like and high treatment cost existing in the prior art, the invention provides a laboratory organic waste liquid cracking system which can effectively treat laboratory organic waste liquid on site, so that the treated organic waste liquid meets the national emission standard; the invention has high treatment efficiency and low cost for single-volume treatment of wastes.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The invention provides a laboratory organic waste liquid cracking system, which comprises:
the waste liquid reaction device is provided with a waste heat recovery device, a flue gas quenching and desulfurizing integrated device, a flue gas dehydration device and a flue gas purification device in sequence at the tail end of the waste liquid reaction device;
The waste liquid reaction device comprises a conical collection part positioned at the bottom, a reaction body positioned at the middle vertical section and a tail gas outlet part positioned at the upper part; the left side of the tail gas outlet part is a slope inclined rightward, and the right side is a vertical surface; the end part of the left inclined plane is positioned on the right side of the central line of the reaction body;
A flame stabilizer is arranged in a cavity of the waste liquid reaction device, and an air pipe is arranged at the periphery of the flame stabilizer and communicated with the cavity; the waste liquid reaction device is provided with a plurality of liquid sprayers capable of spraying waste liquid into the cavity structure, and the central line intersection point of the liquid sprayers is right on the central line of the flame holder; a flow guide arch is arranged on the waste liquid reaction device and is positioned above the flame stabilizer; the bottom of the waste liquid reaction device is connected with a slag ash collecting device;
The waste liquid is sprayed into the waste liquid reaction device through the liquid spraying device, the reaction product is obtained through the reaction of the waste liquid reaction device, the reaction product enters the waste heat recovery device to be cooled primarily, then enters the flue gas quenching and desulfurizing integrated device to be subjected to quenching and desulfurizing, then flows through the flue gas dehydration device to remove the moisture contained in the flue gas, and finally the residual harmful components are filtered out through the flue gas purification device.
More preferably, the flame holder is integrally in a turbine-type structure, the middle part of the flame holder is elliptical solid, and turbine-type channels are arranged around the solid.
More preferably, a plurality of primary air ducts are arranged on the collecting portion; the primary air pipes are arranged in a multi-layer circular ring mode, the central plane of the reaction body is used as an interface, and the primary air pipes on the left side of the interface are deviated to the right; the primary air pipe on the right side of the interface is vertically upwards;
Or alternatively
A primary air duct is arranged on the collecting part; the primary air pipe is an upright air pipe, air outlets are formed in the periphery of the upright air pipe in a staggered manner, and the diameters of the air outlets are sequentially reduced from bottom to top;
Or alternatively
A plurality of primary air pipes are arranged on the reaction body, and the central lines of the primary air pipes are positioned on the same horizontal plane and below the flame stabilizer.
More preferably, the plurality of liquid ejectors are disposed on the reaction body; or the plurality of liquid sprayers are arranged on the conical surface of the collecting part.
More preferably, in the reaction body, the multistage diversion arches are staggered from bottom to top along the reaction flow direction of the organic waste liquid.
More preferably, the included angle between the lower surface of the guide arch and the horizontal plane is b, and the included angle b satisfies the following conditions: 15 DEG.ltoreq.b.ltoreq.65 DEG; the height of the vertical section surface of the right side of the reaction chamber body is A, the free end of the left side of the reaction chamber body is arc-shaped with the radius of R1, and the R1 satisfies the following conditions: r1= (0.3 to 0.8) a.
More preferably, the first-stage guide arch arranged on the right side of the waste liquid reaction device is at a height H1 from the flame stabilizer; the free end part of the H1 is arranged at the left side of the center line of the waste liquid reaction device, and the H1 meets the following conditions: 0.2d < h1< d; wherein D is the diameter of the reactant;
The height of the second-stage guide arch arranged on the left side of the waste liquid reaction device from the first-stage guide arch is H2, and the free end part of the second-stage guide arch coincides with the central line of the waste liquid reaction device; the H2 satisfies the following conditions: h2 =0.5 to 1.5h1, where H1 is the height of the first stage flow guide arch spacing from the flame holder;
The third-stage guide arch is arranged on the right side of the waste liquid reaction device, the height from the third-stage guide arch is H3, and the free end part of the third-stage guide arch is arranged on the right side of the center line of the waste liquid reaction device; the H3 satisfies the following conditions: h3=0.5 to 1.5h1; h1 is the height of the first stage flow guide arch spacing from the flame holder.
More preferably, a secondary air duct is arranged on the opposite reactant wall of the second stage flow arch; the central line of the outlet of the secondary air pipe and the upper edge of the second-stage guide arch are at the same height;
A tertiary air pipe is arranged on the opposite reactant wall of the third-stage guide arch; the central line of the outlet of the tertiary air pipe and the upper edge of the third-stage guide arch are at the same height.
More preferably, the flue gas dehydration device comprises:
The device comprises a preamble dehydration device, a terminal dehydration device and a water collecting tank arranged at the bottom of the terminal dehydration device;
the front-end dehydration device is internally provided with a multi-stage dehydration body, after the water-containing flue gas is dehydrated by the front-end dehydration device in sequence, condensed water drops and other flue gas enter the tail-end dehydration device together, and the water drops falling back after being impacted by the tail-end dehydration device are collected in the water collecting tank.
More preferably, the terminal dehydrating apparatus includes: a vertical baffle, an inclined baffle on one side of the vertical baffle, and a reflux baffle on the other side of the vertical baffle; the inclined baffle and the backflow baffle form an inverted V-shaped structure with an opening at the lower end, and the opening at the lower end of the inverted V-shaped structure is communicated with the water collecting tank; the included angle between the inclined baffle and the horizontal plane is smaller than the included angle between the reflux baffle and the horizontal plane; the vertical baffle and the inclined baffle form a sudden shrinkage structure, and the vertical baffle and the backflow baffle form a sudden expansion structure; the vertical projection of the vertical baffle plate falls on the inclined baffle plate, and the bottom end of the vertical baffle plate is in clearance with the inclined baffle plate; a flue gas port leading to the flue gas purifying device is formed in the position, close to the top end, of the reflux baffle plate;
Or alternatively
The tail end dehydration device is of a double dehydration structure with a bilateral symmetry structure and comprises a vertical baffle, an inclined baffle and a backflow baffle; the vertical baffle and the inclined baffles symmetrically arranged at two sides of the vertical baffle form two protruding structures; the two backflow baffles are of an inverted V-shaped structure, the bottom ends of the two backflow baffles are opened and connected with the water collecting tank, the backflow baffles and the inclined baffles at the two sides form a laterally symmetrical sudden expansion structure, and the flaring of the two sudden expansion structures is respectively communicated with the flue gas purifying devices arranged at the two sides of the tail end dehydration device;
Or alternatively
The tail end dehydration device comprises a double dehydration structure with a bilateral symmetry structure, and aggregation barrels are respectively arranged on two sides of the double dehydration structure; the double dehydration structure comprises a vertical baffle, an inclined baffle and a reflux baffle; the vertical baffle and the inclined baffles symmetrically arranged at two sides of the vertical baffle form two protruding structures; the two reflux baffles are of an inverted V-shaped structure, the bottom end of each reflux baffle is opened and connected with the water collecting tank, and the reflux baffles and the inclined baffles at the two sides form a laterally symmetrical sudden expansion structure; the flaring of the sudden expansion structure is respectively led to the gathering barrel, the upper part of the gathering barrel is provided with an opening which is communicated with the flue gas purifying device, and the bottom is provided with an opening which is communicated with the water collecting tank.
As can be seen from the technical scheme of the invention, the invention has the following beneficial effects:
1. The waste liquid reaction device comprises a conical collection part positioned at the bottom, a reaction body positioned at the middle vertical section and a tail gas outlet part positioned at the upper part; the left side of the tail gas outlet part is a slope inclined rightward, and the right side is a vertical surface; the end of the left inclined plane is positioned on the right side of the center line of the reaction body. The application can adjust the flow rate of the tail gas when the tail gas turns by limiting the end part of the left inclined plane to be positioned on the right side of the central line of the reaction body, and can separate larger and heavier dust particles in the tail gas by controlling the flow rate.
2. A flame holder is arranged in the waste liquid reaction device, and an air pipe is arranged at the periphery of the flame holder and communicated with a cavity of the waste liquid reaction device; the waste liquid reaction device is provided with a plurality of liquid sprayers capable of spraying waste liquid into the cavity structure, and the central line intersection point of the liquid sprayers is right deviated from the central line of the flame holder; the waste liquid reaction device is provided with a guide arch which is positioned above the flame holder. By arranging the guide arch, the flue gas can be forced to travel an S-shaped path, the flow of the tail gas is increased in the same height, the residence time is increased under the same flow velocity, and the equipment height is reduced. When the waste liquid treatment capacity is smaller, the fullness of the tail gas in the waste liquid reaction device is increased, and the waste liquid treatment device is more suitable for load change.
3. According to the invention, the refractory lining is arranged on the inner wall surface of the waste liquid reaction device, so that the internal temperature of the reaction device is uniform, the reaction rate is improved, the stability of the organic waste liquid treatment process is enhanced, and meanwhile, the reaction device is protected to a certain extent.
4. The application arranges a primary air pipe at the position of the collecting part of the waste liquid reaction device near the bottom. The primary air pipes are arranged in a multi-layer circular ring mode, the primary air pipes take the central plane of the collecting part as an interface, and the primary air pipes on the left side of the interface are deviated rightward; the primary air pipe on the right side of the interface is vertically upwards. The arrangement mode in the multi-layer circular ring mode can improve the wind speed of primary wind, increase the penetrating power of the primary wind, strengthen the rotational flow effect of rotational flow reactants, better mix with waste liquid and facilitate the smooth combustion; meanwhile, the reactant is fully contacted with the wall surface, so that the heat can be effectively absorbed, and the reaction rate is improved.
5. The flame holder is a turbine type flame holder, the middle part of the flame holder is an elliptical solid, and turbine type channels are arranged around the solid; the flame holder is made of high heat accumulation, wear resistance and high temperature resistance materials. The arrangement of the elliptical solid part in the flame holder can quickly evaporate and crack waste liquid drops of the primary lower reactant and reach the ignition point; the turbine type channels around the flame holder enable the reactant and the primary air to be mixed better, the reaction rate is improved, meanwhile, the internal circulation of the waste liquid reaction is facilitated to be filled with the whole lower reactant, and the utilization rate of the lower reactant is improved.
6. The conical surface of the upper shrinkage section of the lower reactant is provided with the plurality of liquid sprayers, and the plurality of liquid sprayers can realize mixed spraying of the low-heat-value waste liquid and the high-heat-value waste liquid, so that the overall heat value of the treated waste liquid is improved, and the stability and the high efficiency of waste liquid treatment are improved; the design of the included angle of the liquid spraying device provides powerful conditions for the formation of the internal circulation of the waste liquid reaction. The central line intersection point of the left conical surface liquid sprayer and the right conical surface liquid sprayer is deviated to the right in the middle of the flame holder, namely, the central line intersection point of the liquid sprayer is ensured to be positioned on the right side of the central line of the reaction device, and the left air pipe of the primary air pipe is combined to incline to the right, so that the merging position of waste liquid and air is positioned on the right side of the reaction device, and the waste liquid reaction position is positioned below the lowest layer of guide arch and far away from the outlet position of the guide arch; the primary air pipe provides air required by the waste liquid reaction, the flame stabilizer and heat accumulated by the guide arch, and provides reaction required temperature, so that the smooth proceeding of the waste liquid reaction is ensured, and the method is more suitable for waste liquids with different components and different types.
7. In the reaction body, multistage guide arches are staggered from bottom to top along the reaction flow direction of the organic waste liquid, and secondary air pipes and tertiary air pipes are arranged on the wall of the reaction body opposite to the guide arches; after the flow direction of the tail gas is forced to change by the guide arch, the components in the reaction body can be distributed more uniformly, and the reaction with the secondary air and the tertiary air can be more complete, so that the components in the tail gas of the reaction body can be fully decomposed and reacted.
8. In the application, the central lines of outlets of the secondary air pipe and the tertiary air pipe are at the same height with the upper edges of the corresponding guide arches. The structure can ensure that secondary air and tertiary air are mixed at the place with the smallest left side, the flow cross section is small, the flow velocity of tail gas is high, the disturbance of the flow velocity on the tail gas is high, and the air and flue gas are mixed more uniformly.
9. The application inclines the left side and right side of the primary air pipe arranged at the collecting part, the primary air direction is blown to the right side and the right side is arranged vertically, and the primary air is blown upwards, so that the burning of the reactant is mainly carried out on the right side; the first-stage guide arch which is arranged on the right side in an inclined way is matched, and the tail gas outlet of the wind port part is arranged on the left side, so that the burning time of reactants is prolonged; the guide arch has a strong heat storage function, and is matched with the heat storage function of the flame stabilizer, so that the incineration of waste liquid is enhanced, and the adaptability to the heat value of the waste liquid is wider.
10. The whole waste liquid reaction device is internally provided with multi-stage temperature measuring points, and the temperature measuring points and three air supply devices are interlocked for coupling control. The reaction degree of the lower product is obtained through temperature monitoring, so that the conveying amount of primary air, secondary air and tertiary air is controlled, the automatic control of the integral reaction device and the self-adaptive adjustment during the change of the flow of waste liquid are achieved, the reaction time of a treatment system during the fluctuation of the conveying amount of the waste liquid can be effectively improved, the reaction rate is improved, and meanwhile, the reaction is fully and thoroughly carried out.
11. The flue gas dehydration device is provided with a multi-stage dehydration device and a tail end dehydration device, wherein the bottom of the tail end dehydration device is provided with a water collecting tank, the wall surface of the tail end dehydration device is provided with a lining made of dehydration materials, and condensed water drops of flue gas after passing through the multi-stage dehydration device and other flue gas enter the tail end dehydration device together; the middle part of the tail end dehydration device is provided with a vertical baffle, and the included angle between the inclined baffle and the horizontal plane is smaller than the included angle between the reflux baffle and the horizontal plane; the vertical baffle and the inclined baffle form a sudden shrinkage structure, and the vertical baffle and the backflow baffle form a sudden expansion structure; the vertical projection of the vertical baffle falls on the inclined baffle; under the action of inertia force when the mixture of the smoke and the water drops flows to the backflow baffle through the inclined baffle, the mixture can wash the inner lining of the dehydration material on the left slope surface, the dehydration effect is enhanced, and meanwhile, the water drops mixed in the smoke are smoothly collected into the water collecting tank.
12. The on-site real-time treatment system for the organic waste liquid in the laboratory realizes a modularized structure, has high integration level, compact structure, flexible arrangement, small occupied area, high treatment efficiency and low cost for single-volume treatment of the organic waste liquid, and can effectively treat the organic waste liquid in the laboratory.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of the present invention;
Fig. 2 is a schematic structural diagram of a primary air duct according to a first embodiment of the present invention;
FIG. 3 is a schematic view of a flame holder according to a first embodiment of the present invention;
FIG. 4 is a schematic view of a flow arch according to a first embodiment of the present invention;
FIG. 5 is a schematic diagram of a waste liquid reaction apparatus according to a second embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a waste liquid reaction device in a third embodiment of the present invention;
fig. 7 is a schematic diagram showing a combined structure of a flue gas dehydration device and a flue gas cleaning device in a fourth embodiment of the present invention;
fig. 8 is a schematic diagram showing a combined structure of a flue gas dehydration device and a flue gas cleaning device in a fourth embodiment of the present invention.
Reference numerals:
the device comprises a waste liquid reaction device 1, a waste heat recovery device 2, a flue gas quenching and desulfurizing integrated device 3, a flue gas dehydration device 4 and a flue gas purification device 5; a collecting section 11, a reaction body 12, and a tail gas outlet section 13; primary air duct 111, flame holder 121, liquid jet 122, and guide arch 123; a preamble dehydration device 41, a terminal dehydration device 42, and a water collection tank 43.
Detailed Description
The following detailed description of specific embodiments of the invention is provided in connection with the accompanying drawings and examples. The following examples are only illustrative of the present invention and are not intended to limit the scope of the invention.
Terms of the azimuth or positional relationship of the upper, lower, left, right, inner, outer, front end, rear end, head, tail and the like in the document of the present application are established based on the azimuth or positional relationship shown in the drawings. The drawings are different, and the corresponding positional relationship may be changed, so that the scope of protection cannot be understood.
In the present invention, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, and may be, for example, fixedly connected or detachably connected, integrally connected or mechanically connected, electrically connected or communicable with each other, directly connected or indirectly connected through an intermediate medium, or communicated between two components, or an interaction relationship between two components. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Embodiment one:
The invention provides a laboratory organic waste liquid cracking system, the structure of which is shown in figure 1, comprising: the device comprises a waste liquid reaction device 1, a waste heat recovery device 2, a flue gas quenching and desulfurizing integrated device 3, a flue gas dehydration device 4 and a flue gas purification device 5.
The waste liquid reaction device 1 includes a tapered collecting portion 11 at the bottom, a reactant 12 at the middle vertical section, and a tail gas outlet portion 13 at the upper portion. The waste liquid reaction device 1 is connected with a slag charge collecting device through a collecting part 11; the tail gas outlet part 13 of the waste liquid reaction device 1 is connected to the waste heat recovery device 2, and the waste heat recovery device 2 is sequentially provided with a flue gas quenching and desulfurizing integrated device 3, a flue gas dehydration device 4 and a flue gas purification device 5.
The waste liquid enters the waste liquid reaction device 1, after reaction in the reaction body 12, the generated reaction product is primarily cooled by the waste heat recovery device 2, enters the flue gas quenching and desulfurizing integrated device 3 for quenching and desulfurizing, so that the temperature of the flue gas is reduced to a specified range, part of fine dust is removed at the same time, then the flue gas flows through the flue gas dehydration device 4 to remove the moisture contained in the flue gas, and finally, the residual harmful components are filtered by the flue gas purification device 5, so that the flue gas reaches the standard and is discharged.
The structure and functions of each device are as follows:
The inner wall surface of the waste liquid reaction device 1 is provided with a refractory lining. Through arranging the refractory lining on the inner wall surface of the waste liquid reaction device 1, the internal temperature of the reaction body is uniform, the reaction rate is improved, the stability of the organic waste liquid treatment process is enhanced, and meanwhile, a certain protection effect is played on the waste liquid reaction system.
The waste liquid reaction device 1 comprises a collecting part 11 positioned at the bottom necking section, a reactant 12 positioned at the middle straight section and a tail gas outlet part 13 positioned at the upper eccentric section.
Collection unit 11:
A primary air duct 111 is disposed near the bottom of the collecting portion 11. As shown in fig. 2, the primary air pipes 111 are arranged in a multi-layer circular ring shape, the primary air pipes 111 are deviated rightward from the primary air pipes 111 on the left side of the boundary surface with the center plane of the collecting part 11 as the boundary surface; the primary air duct 111 on the right side of the dividing plane is vertically upward.
The arrangement mode in the multi-layer circular ring mode can improve the wind speed of primary wind, increase the penetrating power of the primary wind, strengthen the rotational flow effect of rotational flow reactants, better mix with waste liquid and facilitate the smooth combustion; meanwhile, the reactant is fully contacted with the wall surface, so that the heat can be effectively absorbed, and the reaction rate is improved.
Reaction body 12:
The cross sections of the reaction bodies 12 in the middle straight section are the same and are bilaterally symmetrical;
A flame holder 121 is disposed within the reaction body 12. The flame holder 121 is integrally in a turbine-type structure as shown in fig. 3, wherein the middle part of the flame holder is an elliptical solid, and turbine-type channels are formed around the solid. The flame holder 121 is made of a high thermal storage, wear-resistant, high temperature resistant material. The elliptical solid structure in the middle of the flame holder 121 can quickly evaporate and crack the waste liquid drop of the primary reaction body 12 to reach the ignition point; the turbine channels around the flame holder 121 allow better mixing of the reactants with the primary air input through the primary air duct 111, improving the reaction rate, and simultaneously facilitating the internal circulation of the waste liquid reaction to fill the whole lower reactant, improving the utilization rate of the lower reactant.
A plurality of liquid ejectors 122 are also arranged on the reaction body 12, and the center line intersection points of the plurality of liquid ejectors 122 are arranged right to the center line of the voltage stabilizer 121. The sparger 122 provides a powerful condition for the formation of an internal recycle of the waste liquid reaction. The waste liquid sprayed by the sprayer 122 can be similar waste liquid, or can be different waste liquid which does not generate chemical reaction, and the waste liquid with low heat value and the waste liquid with high heat value are sprayed into the waste liquid reaction device 1 together, so that the stable treatment and the corresponding treatment temperature of the waste liquid with low heat value can be ensured. Thus, the plurality of sprayers 122 can realize mixed spraying of the low-heat-value waste liquid and the high-heat-value waste liquid, so that the overall heat value of the treated waste liquid can be improved, and the stability and the high efficiency of waste liquid treatment can be improved.
In the reaction body 12, along the reaction flow direction of the organic waste liquid, multistage diversion arches 123 are staggered from bottom to top, and the diversion arches 123 can be formed by integrally casting high-temperature-resistant, high-strength and wear-resistant casting materials and are of an integral structure with the inner wall surface of the cavity of the waste liquid reaction device 1. As shown in fig. 1, three-stage flow arches, that is, a first-stage flow arch, a second-stage flow arch, and a third-stage flow arch, are arranged in the reaction body 12; the structure of the guide arch 123 is shown in fig. 4, and the included angle between the lower surface and the horizontal plane is b, where the included angle b satisfies: 15 DEG.ltoreq.b.ltoreq.65 DEG; the height of the vertical section surface of the right side of the reaction chamber body is A, the free end of the left side of the reaction chamber body is arc-shaped with the radius of R1, and the R1 satisfies the following conditions: r1= (0.3 to 0.8) a.
A first-stage guide arch 123 arranged on the right side of the waste liquid reaction device 1 is positioned above the flame holder 121, and is positioned at a distance H1 from the flame holder 121; the free end part of the device is arranged at the left side of the central line of the waste liquid reaction device 1, and the distance from the central line of the waste liquid reaction device 1 is L1; the L1 and H1 satisfy the following conditions: -1/4d < l1<1/4d,0.2d < h1< d; where D is the diameter of the reactant 12 of the waste liquid reaction apparatus 1.
The height H1 ensures that enough space is reserved below the guide arch on the one hand, and meets the space requirement required by the waste liquid reaction; on the other hand, the guide arch is ensured to have the functions of heat accumulation and heat supply for the reaction. The height is too low, the space is too small, and the reaction process of waste liquid is blocked; the height is too high, the space is too large, a temperature field and a flow field required by the reaction cannot be formed, and meanwhile, the effect of the flow guide arch is reduced and even does not act.
L1 is mainly used for ensuring that the reaction position of the waste liquid is below the guide arch and ensuring that the reactant flowing through the guide arch has proper speed.
The height of the second-stage guide arch arranged at the left side of the waste liquid reaction device 1 from the first-stage guide arch is H2, and the free end part of the second-stage guide arch coincides with the central line of the waste liquid reaction device 1; the H2 satisfies the following conditions: h2 =0.5 to 1.5h1, where H1 is the height of the first stage guide arch from the flame holder 121.
A third stage of guide arch arranged on the right side of the waste liquid reaction device 1, the height from the first stage of guide arch is H3, the free end part of the third stage of guide arch is right to the center line of the waste liquid reaction device 1, and the distance from the center line of the waste liquid reaction device 1 is L2; the L2 and H3 satisfy the following conditions: -1/4d < l2<1/4d, h3=0.5 to 1.5h1; wherein D is the diameter of the reaction body 12 of the waste liquid reaction device 1; h1 is the height of the first stage guide arch from the flame holder 121.
The heights H1-H3 are mainly used for ensuring the space required by the reaction, and have proper temperature fields and flow fields.
In the waste treatment, the retention time of the tail gas in a high temperature area is definitely required to be not less than 2S, and the application can force the flue gas to travel an S-shaped path by arranging the guide arch 123, so that the flow of the tail gas is increased in the same height, the retention time is increased under the same flow velocity, and the equipment height is reduced. When the waste liquid treatment capacity is smaller, the fullness of the tail gas in the waste liquid reaction device 1 is increased, and the waste liquid treatment device is more suitable for load change.
In addition, the primary air pipe 111 is inclined left and right, the primary air is blown to the right side, the right side is vertically arranged, and the primary air is blown upwards, so that the incineration of the reactants is mainly carried out on the right side; the first-stage guide arch which is arranged on the right side in an inclined way is matched, and the tail gas outlet of the wind port part is arranged on the left side, so that the burning time of reactants is prolonged; the guide arch 123 has a strong heat storage function, and is matched with the heat storage function of the flame holder 121, so that the incineration of the waste liquid is enhanced, and the adaptability to the heat value of the waste liquid is wider.
The application also arranges a secondary air pipe and a tertiary air pipe on the opposite reaction body 12 walls of the first stage diversion arch and the second stage diversion arch. The central line of the outlet of the secondary air pipe is at the same height with the upper edge of the first-stage guide arch; the central line of the outlet of the tertiary air pipe is at the same height with the upper edge of the second stage guide arch. The advantages of this arrangement are: the secondary air and the tertiary air can be mixed at the place with the smallest left side, the flow cross section is small, the flow velocity of the tail gas is high, the disturbance of the flow velocity to the tail gas is high, and the air and the flue gas are more uniformly mixed.
After the flow direction of the tail gas is changed by the guide arch 123, the components in the reaction body 12 can be distributed more uniformly, and the reaction with the secondary air and the tertiary air can be more complete, so that the components in the tail gas of the reaction body 12 can be fully decomposed and reacted.
Tail gas outlet portion 13:
The left side of the tail gas outlet part 13 is a slope inclined to the right, and the right side is a vertical surface; the left beveled end is located to the right of the centerline of the reaction mass 12. The flow speed of the tail gas during steering can be regulated by limiting the end part of the left inclined plane to be positioned on the right side of the central line of the reaction body, and larger and heavier dust particles in the tail gas can be separated by controlling the flow speed. Further, the distance between the left inclined surface end and the center line of the reactant 12 is limited to L3, where L3 is equal to or greater than 1/4D, and D is the diameter of the reactant 12. By limiting the size of L3, the flow rate of the tail gas during the turning can be adjusted, and the larger and heavier dust particles in the tail gas can be separated by controlling the flow rate.
The distances L1-L3 are set to ensure the outlet flow rate of the reactants.
The multi-stage temperature measuring points are arranged in the whole waste liquid reaction device 1, the temperature measuring points and the air supply quantity of three times (primary air, secondary air and tertiary air) are in linkage control, namely, the reaction degree of a lower product is obtained through temperature monitoring, and then the primary air, secondary air and tertiary air conveying quantity is controlled according to the reaction degree of the lower product, so that the automatic control of the whole reaction device and the self-adaptive regulation when the waste liquid flow is changed are achieved, the reaction time of a treatment system when the waste liquid conveying quantity is fluctuated can be effectively improved, the reaction rate is improved, and meanwhile, the reaction is fully and thoroughly carried out.
The tail end of the waste liquid reaction device 1 is sequentially provided with a waste heat recovery device 2, a flue gas quenching and desulfurizing integrated device 3, a flue gas dehydration device 4 and a flue gas purification device 5.
The air exchanges heat with the final product of the waste liquid reaction device 1 in the waste heat recovery device 2, and the preheated air is conveyed to the whole waste liquid reaction device 1 to participate in the reaction through a primary air pipe, a secondary air pipe and a tertiary air pipe. The final product of the waste liquid reaction device 1 is subjected to preliminary cooling through the waste heat recovery device 2. Therefore, the arrangement of the waste heat recovery device 2 reduces the temperature of the final product of the waste liquid reaction device 1, simultaneously enables the primary air, the secondary air and the tertiary air to obtain heat, increases the temperature, effectively utilizes energy, is beneficial to the stability of system operation and improves the economical efficiency of the system.
The final product of the waste liquid reaction device 1 is subjected to preliminary cooling by the waste heat recovery device 2, is subjected to two-stage quenching desulfurization by the flue gas quenching desulfurization integrated device 3, so that the flue gas temperature is reduced to a specified range, meanwhile, part of fine dust is removed, then, the flue gas flows through the flue gas dehydration device 4 to remove the moisture contained in the flue gas, and finally, the residual harmful components are filtered by the flue gas purification device 5, so that the flue gas reaches the standard and is discharged.
The flue gas dehydration device 4 is provided with a preamble dehydration device 41, a terminal dehydration device 42, and a water collection tank 43 provided at the bottom of the terminal dehydration device 42.
The preamble dehydration device 41 is provided with a multi-stage dehydration body (such as a three-stage dehydration body), and after the water-containing flue gas sequentially passes through the preamble dehydration device 41 and is dehydrated in three stages, condensed water droplets and the rest of flue gas enter the tail end dehydration device 42 together.
The walls of the end dewatering device 42 are lined with a dewatering material. The terminal dehydrating apparatus 42 includes: a vertical baffle 421, an inclined baffle 422 on one side of the vertical baffle 421, and a return baffle 423 on the other side of the vertical baffle 421. The inclined baffle 422 and the return baffle 423 form an inverted V-shaped structure with a lower end opening, and the lower end opening thereof opens into the water collection tank 43; the vertical baffle 4521 and the inclined baffle 422 form a protruding and shrinking structure, which sharply increases the flow rate of the aqueous flue gas so that the aqueous flue gas can impact the backflow baffle favorably; the vertical baffle 421 and the return baffle 423 constitute a sudden expansion structure. The inclined baffle 422 has an angle (e.g., 15 ° -45 °) with the horizontal plane that is smaller than the angle (e.g., 45 ° -75 °) of the return baffle 423 with the horizontal plane; the vertical baffle 421 vertically projects onto the inclined baffle 422 with a gap between the bottom end thereof and the inclined baffle 422; the reflux baffle 423 is provided with a flue gas port which leads to the flue gas purification device 5 near the top end.
The water-containing flue gas is subjected to preliminary dehydration by a multi-stage dehydration body in a preamble dehydration device 51, and enters a terminal dehydration device 42; the water-containing flue gas entering the tail end dehydration device 42 firstly enters a sudden shrinkage structure formed by a vertical baffle and an inclined baffle, and the sudden shrinkage structure can sharply increase the flow velocity of the water-containing flue gas, so that the water-containing flue gas can impact the dehydration material lining of the reflux baffle under the action of inertia force, and the dehydration effect is enhanced; meanwhile, the abrupt expansion structure formed by the vertical baffle and the backflow baffle sharply reduces the flow velocity of the flue gas, is favorable for water drop falling back, and smoothly collects water drops mixed in the flue gas into the water collecting tank 43. Finally, the dehydrated flue gas enters the flue gas purification device 5 through a flue gas port near the top end of the reflux baffle plate. Meanwhile, due to the eccentric structure of the dehydration device 5, the moisture in the water-containing flue gas is efficiently removed under the action of inertia force.
The flue gas purifying device 5 can adopt a flue gas purifying device purchased in the market, and can also be added with a plurality of layers of high-temperature resistant filter materials in the shell so as to filter harmful substances in flue gas passing through the flue gas purifying device.
The working principle of the waste liquid reaction device 1 is as follows:
After the waste liquid and wind enter the liquid sprayer 122, the waste liquid is atomized and premixed in the liquid sprayer 122 and then enters the waste liquid reaction device 1 through the tail end nozzle of the liquid sprayer 122. The waste liquid is mixed in the waste liquid reaction device 1 in a hedging way, and is fully mixed with primary air, the gas-liquid mixture fully utilizes the wall surface of the waste liquid reaction device 1 and the heat of the flame holder 121 to carry out evaporation and cracking combustion reaction, the reaction rate is improved, and meanwhile, the arrangement of the flame holder 121 enables the temperature distribution in the waste liquid reaction device to be more uniform, and the rapid reaction is facilitated. The reactant is mixed with the primary air again through the turbine-type channels around the flame holder 121, and the turbine-type channels of the flame holder 121 enable the passage rate of the reactant at the left side to be high, so that rightward rotational flow is formed at the left lower part of the flame holder 121, the rotational flow effect of the rotational flow reactant is enhanced under the action of the primary air when the rotational flow reactant reaches the primary air pipe at the bottom of the reaction body 12, so that the internal circulation of the waste liquid evaporation and cracking combustion reaction is formed in the reaction body 12 of the whole waste liquid reaction device 1, and the reaction rate of the waste liquid is improved. After the waste liquid is treated by the reaction body 12, slag ash particles in the product are collected by a slag ash collecting device; the reaction product of the reaction body 12 is thoroughly treated in the reaction body 12. The reaction body 12 is provided with three-level flow guide arches from bottom to top, and the flow guide arches are arranged to ensure that the mixture of the product, secondary air and tertiary air is more uniform, the temperature distribution in the reaction body is more uniform, the reaction rate is improved, and the reaction flow of the product is increased, so that the reaction is more complete.
The whole waste liquid reaction device 1 is internally provided with multi-stage temperature measuring points, and the temperature measuring points and the air supply quantity of three times (primary air, secondary air and tertiary air) are in linkage and coupled control: the reaction degree of the lower product is obtained through temperature monitoring, and then the conveying quantity of primary air, secondary air and tertiary air is controlled according to the reaction degree of the lower product, so that the automatic control of the whole reaction device and the self-adaptive adjustment during the change of the flow of waste liquid are achieved.
The degradation of the product is completed after the full reaction of the reactant 12, and the final product meets the national emission standard. 1. The secondary air and the tertiary air are preheated air. The air exchanges heat with the final product of the waste liquid reaction device 1 in the waste heat recovery device 2, and the preheated air is conveyed to the whole waste liquid reaction device 1 to participate in the reaction. The final product is subjected to preliminary cooling by the waste heat recovery device 2, is subjected to two-stage quenching desulfurization by the flue gas quenching desulfurization integrated device 3, so that the flue gas temperature is reduced to a specified range, meanwhile, part of fine dust is removed, then, the flue gas flows through the flue gas dehydration device 4, the moisture contained in the flue gas is removed, and finally, the residual harmful components are filtered by the flue gas purification device 5, so that the flue gas reaches the standard and is discharged.
The laboratory organic waste liquid treatment system realizes a modularized structure, has high integration level, compact structure, flexible arrangement, small occupied area, high treatment efficiency and low cost of single-volume treatment of the organic waste liquid, and can effectively treat the laboratory organic waste liquid.
Example two
In the second embodiment, the waste liquid reaction apparatus 1 has the structure shown in fig. 5, and differs from the embodiment 1 in that:
1. the primary air duct 111 provided in the collecting portion 11 is replaced with one upright air duct by a plurality of air ducts horizontally arranged in the first embodiment, and air outlets are formed around the upright air duct in a staggered manner, and the diameters of the air outlets are sequentially reduced from bottom to top.
2. A plurality of liquid sprayers 122 are positioned on the conical surface of the collecting part 11, and the intersection point of the central line of the liquid sprayers is positioned on the right side of the central line of the flame holder 121.
The rest of the second embodiment is the same as the first embodiment and will not be described in detail here.
Example III
In the third embodiment, the waste liquid reaction apparatus 1 has the structure shown in fig. 6, which is different from the embodiment 1 in that:
The plurality of primary air pipes 111 are arranged on the collecting part 11, and are arranged on the reaction body 11 and below the flame holder 122 instead, and the central lines of the plurality of primary air pipes 111 are on the same horizontal plane.
Example IV
In the fourth embodiment, the structure of the flue gas dehydration device 4 and the number and arrangement positions of the flue gas purification devices 5 are different from those of the first embodiment, and the combined structure of the flue gas dehydration device 4 and the flue gas purification devices 5 is shown in fig. 7, and includes: a flue gas dehydration device 4 comprising a front dehydration device 41 for concentrated dehydration and a terminal dehydration device 42 with a double dehydration structure, and a flue gas purification device 5 which is communicated with the terminal dehydration device 42 and is arranged at both sides of the terminal dehydration device 42.
The flue gas dehydration device 4 still comprises a preamble dehydration device 41, a terminal dehydration device 42 and a water collection tank 43 arranged at the bottom of the terminal dehydration device 42.
The front-end dehydration device 41 is provided with two-stage dehydration bodies (the dehydration bodies are made of polyurethane composite materials), and after the water-containing flue gas sequentially passes through the two-stage dehydration of the front-end dehydration device 41, condensed water droplets and the rest of flue gas enter the tail-end dehydration device 42 together.
The end dewatering device 42 is a double dewatering structure of a bilateral symmetry structure, which includes a vertical baffle 421, an inclined baffle 422, and a return baffle 423. Wherein, the vertical baffle 421 and the inclined baffles 422 symmetrically arranged at both sides of the vertical baffle 421 form two protruding structures; the two backflow baffles 423 are of an inverted V-shaped structure, the bottom ends of the backflow baffles 423 are opened and connected with the water collecting tank 43, the backflow baffles 423 and the inclined baffles 422 on the two sides form a laterally symmetrical sudden expansion structure, and the flaring of the two sudden expansion structures is respectively led to the flue gas purifying devices 5 arranged on the two sides of the tail end dewatering device 42.
The two protruding structures formed by the vertical baffle 421 and the inclined baffles 422 symmetrically arranged at two sides of the vertical baffle 421 can sharply increase the flow rate of the water-containing flue gas, so that the water-containing flue gas can impact the backflow baffles 423; meanwhile, the bilateral symmetry sudden expansion structure formed by the inclined baffle 422 and the backflow baffle 423 sharply reduces the flow rate of the water-containing flue gas, is favorable for water drop falling back, and smoothly collects water drops mixed in the flue gas into the water collecting tank 43; meanwhile, the bilateral symmetry double dehydration structure of the terminal dehydration device 42 enables the water-containing flue gas to efficiently remove the water in the flue gas under the long-flow and multi-channel effects.
Example five
In the fifth embodiment, the structure of the flue gas dehydration device 4 and the number and arrangement positions of the flue gas purification devices 5 are different from those in the fourth embodiment, and the combined structure of the flue gas dehydration device 4 and the flue gas purification devices 5 is shown in fig. 8, and includes:
a flue gas dehydration device 4 comprising a front dehydration device 41 for concentrated dehydration and a tail end dehydration device 42 with a double dehydration structure, and a flue gas purification device 5 which is communicated with the tail end dehydration device 42 and is arranged at two sides of the front dehydration device 41.
The end dewatering device 42 still comprises a preamble dewatering device 41, an end dewatering device 42 and a water collection tank 43 arranged at the bottom of the end dewatering device 42. Except that the end dehydrating device 42 has a double dehydrating structure of the bilateral symmetry structure in the fourth embodiment, and the collecting barrels are respectively added to both sides of the double dehydrating structure. The flaring of the sudden expansion structure in the double dehydration structure is respectively led to the gathering barrel, the upper part of the gathering barrel is provided with an opening which is communicated with the flue gas purifying device 5, and the bottom part is provided with an opening which is communicated with the water collecting tank.
The gathering barrels respectively arranged on the two sides of the double dehydration structure can continuously recycle water drops falling back in the process that the tax-containing flue gas enters the flue gas purifying device 5.
While the principles of the invention have been described in detail in connection with the preferred embodiments thereof, it should be understood by those skilled in the art that the foregoing embodiments are merely illustrative of the implementations of the invention and are not intended to limit the scope of the invention. The details of the embodiments are not to be taken as limiting the scope of the invention, and any obvious modifications based on equivalent changes, simple substitutions, etc. of the technical solution of the invention fall within the scope of the invention without departing from the spirit and scope of the invention.
Claims (8)
1. A laboratory organic waste liquid pyrolysis system, characterized in that the laboratory organic waste liquid pyrolysis system comprises:
The waste liquid reaction device (1), wherein the tail end of the waste liquid reaction device (1) is sequentially provided with a waste heat recovery device (2), a flue gas quenching and desulfurizing integrated device (3), a flue gas dehydration device (4) and a flue gas purification device (5);
The waste liquid reaction device (1) comprises a conical collection part (11) positioned at the bottom, a reaction body (12) positioned in the middle vertical section and a tail gas outlet part (13) positioned at the upper part; the left side of the tail gas outlet part (13) is a slope inclined rightward, and the right side is a vertical surface; the end part of the left inclined plane is positioned on the right side of the central line of the reaction body (12);
A flame stabilizer (121) is arranged in a cavity of the waste liquid reaction device (1), an air pipe is arranged at the periphery of the flame stabilizer and communicated with the cavity, and the air pipe comprises a primary air pipe (111) arranged below the flame stabilizer (121); a plurality of liquid sprayers (122) capable of spraying the waste liquid into the cavity structure are arranged on the waste liquid reaction device (1), and the central line intersection point of the liquid sprayers (122) is right deviated from the central line of the flame holder (121); in the reaction body (12), a plurality of stages of guide arches (123) are arranged in a staggered manner from bottom to top along the reaction flow direction of the organic waste liquid, and the guide arches (123) comprise a first stage guide arch and a second stage guide arch; the first-stage guide arch is positioned on the right-side reaction body (12) above the flame stabilizer (121); the bottom of the waste liquid reaction device (1) is connected with a slag ash collecting device;
Secondary air pipes are arranged on the wall of the reactant (12) opposite to the first-stage guide arch; the central line of the outlet of the secondary air pipe and the upper edge of the first-stage guide arch are at the same height;
A tertiary air duct is arranged on the opposite reactant (12) wall of the second-stage guide arch; the central line of the outlet of the tertiary air pipe and the upper edge of the second-stage guide arch are at the same height; the waste liquid is sprayed into the waste liquid reaction device (1) through a liquid sprayer, a reaction product is obtained through the reaction of the waste liquid reaction device (1), the reaction product enters the waste heat recovery device (2) to be cooled down preliminarily, enters the flue gas quenching and desulfurizing integrated device (3) to carry out quenching and desulfurizing, then flows through the flue gas dehydration device (4) to remove moisture contained in the flue gas, and finally, the residual harmful components are filtered through the flue gas purification device (5).
2. A laboratory organic waste liquid pyrolysis system according to claim 1, wherein,
The flame holder (121) is integrally in a turbine-type structure, the middle part of the flame holder is elliptical solid, and turbine-type channels are formed around the solid.
3. A laboratory organic waste liquid pyrolysis system according to claim 2, wherein,
A plurality of primary air pipes (111) are arranged on the collecting part (11); the primary air pipes (111) are arranged in a multi-layer annular mode, the central plane of the reaction body (12) is used as a boundary surface, and the primary air pipes (111) on the left side of the boundary surface are deviated to the right; a primary air pipe (111) on the right side of the interface is vertically upwards;
Or alternatively
A primary air duct (111) is arranged on the collecting part (11); the primary air pipe (111) is an upright air pipe, air outlets are formed in the periphery of the upright air pipe in a staggered manner, and the diameters of the air outlets are sequentially reduced from bottom to top;
Or alternatively
A plurality of primary air pipes (111) are arranged on the reaction body (12), and the central lines of the primary air pipes (111) are positioned on the same horizontal plane and below the flame stabilizer (121).
4. A laboratory organic waste liquid pyrolysis system according to claim 1, wherein,
The plurality of liquid sprayers (122) are arranged on the reaction body (12);
Or alternatively
The plurality of liquid sprayers (122) are arranged on the conical surface of the collecting part (11).
5. A laboratory organic waste liquid pyrolysis system according to claim 1, wherein,
The included angle between the lower surface of the first-stage guide arch and the horizontal plane is b, and the included angle b meets the following conditions: 15 DEG.ltoreq.b.ltoreq.65 DEG; the height of the vertical section surface of the right side of the reaction chamber body is A, the free end of the left side of the reaction chamber body is arc-shaped with the radius of R1, and the R1 satisfies the following conditions: r1= (0.3 to 0.8) a.
6. A laboratory organic waste liquid pyrolysis system according to claim 5, wherein,
The first-stage diversion arch spacing arranged on the right side of the waste liquid reaction device (1) is H1 from the flame stabilizer (121); the free end part of the device is arranged at the left side of the central line of the waste liquid reaction device (1), and the H1 satisfies the following conditions: 0.2d < h1< d; wherein D is the diameter of the reaction body (12);
The height of the second-stage guide arch arranged on the left side of the waste liquid reaction device (1) from the first-stage guide arch is H2, and the free end part of the second-stage guide arch coincides with the central line of the waste liquid reaction device (1); the H2 satisfies the following conditions: h2 =0.5 to 1.5h1;
The third-stage guide arch is arranged on the right side of the waste liquid reaction device (1), the height from the third-stage guide arch is H3, and the free end part of the third-stage guide arch is arranged on the right side of the center line of the waste liquid reaction device (1); the H3 satisfies the following conditions: h3=0.5 to 1.5h1.
7. A laboratory organic waste liquid cracking system according to claim 1, characterized in that said flue gas dehydration device (4) comprises:
A preamble dehydration device (41), a terminal dehydration device (42), and a water collecting tank (43) arranged at the bottom of the terminal dehydration device (42);
the front-end dehydration device (41) is internally provided with a multi-stage dehydration body, after the water-containing flue gas is dehydrated by the front-end dehydration device (41) in sequence, condensed water drops and other flue gas enter the tail-end dehydration device (42) together, and the water drops falling back after being impacted by the tail-end dehydration device (42) are collected in the water collecting tank (43).
8. A laboratory organic waste liquid pyrolysis system according to claim 7, wherein,
The terminal dewatering device (42) includes: a vertical baffle (421), an inclined baffle (422) on one side of the vertical baffle (421), and a return baffle (423) on the other side of the vertical baffle (421); the inclined baffle (422) and the backflow baffle (423) form an inverted V-shaped structure with an opening at the lower end, and the opening at the lower end of the inverted V-shaped structure is communicated with the water collecting tank (43); the included angle between the inclined baffle (422) and the horizontal plane is smaller than the included angle between the backflow baffle (423) and the horizontal plane; the vertical baffle (421) and the inclined baffle (422) form a sudden shrinkage structure, and the vertical baffle (421) and the backflow baffle (423) form a sudden expansion structure; the vertical baffle (421) vertically projects and falls on the inclined baffle (422), and the bottom end of the vertical baffle is in clearance with the inclined baffle (422); a flue gas port leading to the flue gas purifying device (5) is arranged at the position of the reflux baffle plate (423) close to the top end;
Or alternatively
The tail end dehydration device (42) is of a double dehydration structure with a bilateral symmetry structure, and comprises a vertical baffle (421), an inclined baffle (422) and a backflow baffle (423); the vertical baffle (421) and the inclined baffles (422) symmetrically arranged at two sides of the vertical baffle (421) form two protruding structures; the two backflow baffles (423) are of an inverted V-shaped structure, the bottom ends of the backflow baffles are open and connected with the water collecting tank (43), the backflow baffles (423) and the inclined baffles (422) on the two sides form a laterally symmetrical sudden expansion structure, and the flaring of the two sudden expansion structures is respectively communicated with the flue gas purifying devices (5) arranged on the two sides of the tail end dehydration device (42);
Or alternatively
The tail end dehydration device (42) comprises a double dehydration structure with a bilateral symmetry structure, and aggregation barrels are respectively arranged at two sides of the double dehydration structure; the double dewatering structure comprises a vertical baffle (421), an inclined baffle (422) and a backflow baffle (423); the vertical baffle (421) and the inclined baffles (422) symmetrically arranged at two sides of the vertical baffle (421) form two protruding structures; the two reflux baffles (423) are of an inverted V-shaped structure, the bottom ends of the two reflux baffles are open and connected with the water collecting tank (43), and the reflux baffles (423) and the inclined baffles (422) on the two sides form a laterally symmetrical sudden expansion structure; the flaring of the sudden expansion structure is respectively led to the gathering barrel, the upper part of the gathering barrel is provided with an opening which is communicated with the flue gas purifying device (5), and the bottom part of the gathering barrel is provided with an opening which is communicated with the water collecting tank.
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| CN112696697A (en) * | 2020-12-28 | 2021-04-23 | 清华大学 | Laboratory organic waste liquid is real-time processing system on spot |
| CN214990906U (en) * | 2020-12-28 | 2021-12-03 | 清华大学 | Laboratory organic waste liquid and medical waste integration concurrent processing system |
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