CN1077444C - Fog-net type desulfurating dust-removing equipment - Google Patents
Fog-net type desulfurating dust-removing equipment Download PDFInfo
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- CN1077444C CN1077444C CN99100019A CN99100019A CN1077444C CN 1077444 C CN1077444 C CN 1077444C CN 99100019 A CN99100019 A CN 99100019A CN 99100019 A CN99100019 A CN 99100019A CN 1077444 C CN1077444 C CN 1077444C
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Abstract
The present invention relates to a fog-net type desulfurizing and dust-removing device for coal-fired boilers, which is composed of an external cylinder body and an internal cylinder body, wherein the internal cylinder body is connected with the external cylinder body, and the upper part of the external cylinder body is provided with a plurality of nozzles to form a spraying zone; a stainless steel tube with small holes and a magnetizer for magnetizing spraying liquid are arranged in the intermediate cylinder body of the external cylinder body, the spraying liquid contains 0.2 wt% to 0.5 wt% of ammonia water or lime water, and the pH value of the spraying liquid is from 10 to 11. A stainless steel net and film separating structure is arranged in the external cylinder body. When flue gas passes through the present invention, the present invention can simultaneously accomplish dust removal and desulfurization with high efficiency.
Description
The present invention relates to a flue gas purification equipment, in particular, it relates to a flue gas purification equipment which can obtain desulfurization effect greater than 90% and dust-removing effect about 99% after the flue gas is passed through the processes of magnetization, atomization, coagulation and net film of said equipment. The equipment can be widely applied to the fields of electric power, metallurgy, mines, petroleum, heating, environmental protection and the like.
In recent years, pollution and destruction of natural ecological environment have been caused by a large amount of harmful substances such as sulfur dioxide and soot particles, etc. discharged into the atmosphere from boilers. Therefore, threshing and dedusting equipment is developed and developed successively at home and abroad so as to achieve the desire of purifying the atmosphere and creating a beautiful ecological environment. The existing dust removing equipment comprises gravity type, cyclone type, water mist type, cloth bag type, high voltage type and other types of dust remover. Among the dust collectors, the dust collection efficiency of the first four dust collectors is lower, generally in the range of 60% -80%, while the dust collection efficiency of the bag-type dust collector and the electric dust collector is higher (95% -97%), and the bag-type dust collector has the defects of large resistance, short service life, easiness in damage and certain limitation in use. And for example, the dust collector is not suitable for high-temperature flue gas dust and moist dust. The high-voltage electric dust collector has the defects of large equipment investment, large operation power consumption and low safety after long-term operation in a high-voltage (4-6 ten thousand volts) environment.
The design principles of these precipitators are all passive treatment principles, i.e. only the focus is on trying to improve the soot retention capacity of the precipitator. The principle can be used for treating coarse and medium particles in smoke dust, and a series of problems of high manufacturing cost, equipment operation or high cost and the like are faced immediately when small particles are faced. Thus, the treatment of flue gas by a precipitator can be broadly divided into three categories: one is that the gravity principle, the acceleration principle and the resistance principle are utilized, the current carrying is large and medium particle dust, the current carrying rate is about 99 percent, and the cost is low; the other type of the device utilizes an acceleration principle, a resistance principle, an electromagnetic adsorption principle and the like, the shutoff rate is about 50 percent, and the cost is high; the other is to use resistance, electromagnetic adsorption principle, ultrasonic resonance principle, etc. and the interception rate is about 10-20% and the cost is very high. The total dust removal efficiency of the dust remover is mostly below 97 percent.
These dust collectors can basically remove dust only, and the desulfurization efficiency is not high, about 15%. Sulfur dioxide which causes harm such as acid rain cannot be effectively treated, and only needs to be allowed to flow into the atmosphere. If the desulfurization is required, a set of desulfurization equipment is additionally arranged.
In recent years, patent techniques such as Japanese patent laid-open publication No. Sho 64-18427 disclose a dust-removing and desulfurizing apparatus in which sulfur dioxide is removed by introducing cooled exhaust gas into an absorbing liquid through a gas diffusion tube and absorbing the exhaust gas. U.S. patent No.5645802 proposes a method and apparatus for treating chemical contaminants that adhere to particulate matter, integrating a cooling/dedusting apparatuswith chemical treatment. The method and the equipment achieve certain dedusting and desulfurizing effects.
The invention aims to improve the efficiency of flue gas dust removal and desulfurization, and provides an integral fog screen type dust removal and desulfurization device, which can achieve the effects of high-efficiency dust removal and desulfurization after flue gas passes through the device and is subjected to the processes of magnetization, atomization, condensation, net film and the like.
The apparatus of the present invention comprises: the upper part of the inner cylinder body is connected with a flue outlet of the boiler, and a plurality of spray nozzles 1 are arranged in the inner cylinder body; the outer cylinder consists of an upper cylinder 2, middle cylinders 7 and 9, a lower cylinder 10 and a conical water outlet C; the cylinders of the middle cylinders 7 and 9 are respectively provided with a separation structure of a stainless steel net, and a stainless steel pipe with small holes is arranged above each net rack; the outer shell of the middle cylinders 7 and 9 is connected with a magnetizing device; a chimney B arranged on one side of the upper cylinder body 2; and a bracket (11) arranged at the lower part of the shell of the outer cylinder body (D). In addition, the equipment also comprises accessory equipment or devices such as a magnetizer, a water lifting pump, a filter, a liquid distribution barrel, a water pump and the like.
The equipment of the invention is provided with a plurality of nozzles 1 at an atomization section, an upper cylinder 2 consists of a flange plate, the upper part of which is connected with a boiler flue, a flange plate, the side surface of which is connected with a draught fan flue, and an inner cylinder which provides a unique flue gas channel, and middle cylinders 7 and 9 form complete desulfurization and dust removal equipment. When the flue gas enters the atomization section of the equipment from the flue inlet A, the flue gas is atomized, and large and medium particle dust in the flue gas is effectively treated under the action of the spray liquid. Meanwhile, because a small amount of desulfurizer, namely ammonia water or lime water, is added into the spray liquid, sulfur dioxide in the flue gas and the ammonia water or the lime water undergo a chemical reaction, and the sulfur dioxide generates ammonium sulfite or calcium sulfite. The flue gas moves downwards along the inner cylinder and collides with the inner wall of the lower cylinder 10, and then moves in the opposite direction, namely upwards. Because the shells of the middle cylinders 7 and 9 are respectively provided with a stainless steel net membrane separation structure, and a stainless steel pipe with small holes is simultaneously arranged above each net frame, when the circulating liquid slowly flows onto the net membrane from the small holes, a thin water membrane is formed. Therefore, when dust in the smoke winds the inner frame of the net film and passes through the net film, the particle size of the dust is changed, fine particles which are difficult to separate can be changed into larger secondary particles which are easy to separate, and the smoke dust is guaranteed to be captured in time and discharged from the outlet C along with net film liquid. The flue gas moves to the blades 6, and after being impacted, the residual dust in the flue gas falls to the bottom of the equipment and is discharged from an outlet C. Therefore, the flue gas is purified after a series of treatments by the equipment, and finally enters a chimney B from a position B and is discharged into the atmosphere.
The inventor tries to change the particle size of the smoke dust into small particles and then into large particles while absorbing the advantages of the traditional dust remover equipment, thereby greatly improving the dust removing efficiency of the equipment. It is considered that the effect of high-efficiency desulfurization can be obtained while high-efficiency dust removal is carried out under the condition of not increasing the equipment investment. Therefore, the aim can be achieved by adding a small amount of desulfurizer, namely ammonia water or lime water into the spray solution, and the process is as follows:
first-stage treatment: by utilizing the magnetization adsorption principle, the fine particles in the smoke dust are grown into small particles;
and (3) secondary treatment: the atomization and agglomeration principle is utilized to grow small particles in the smoke dust into medium particles;
and (3) third-stage treatment: by utilizing the surface tension of water and the principle of a net film, particles in the smoke dust are intercepted, the interception rate is more than 95 percent, and the cost is lower;
fourth-stage treatment: by utilizing the forward speed reduction sinking and lateral acceleration diffusion principle, residual small and medium particles in the smoke dust are intercepted, the interception rate can be more than 90 percent, and the cost is very low;
the total dust removal efficiency is more than 98 percent, the highest dust removal efficiency can reach 99.9 percent, the desulfurization efficiency can be up to 90 percent, and the aim of treating both principal and secondary aspects is achieved.
The technical scheme of the invention is as follows: melt desulfurization and dust removal integral fog net high efficiency desulfurization dust collecting equipment as an organic whole, its specific technical step includes:
1. dust removing technology by utilizing magnetized water adsorption
In the magnetic field of the permanent magnet, water passes through the strong magnetic field, as shown in fig. 3, after being cut by magnetic lines of force, the water molecule bonds are changed in angle and length simultaneously, the hydrogen bond angle is reduced from 105 degrees to about 103 degrees, the microstructure change enables the water molecules to generate electric property and magnetic property changes, induced potential and electric charge are generated, and a series of changes are generated on the physical and chemical properties of the water. Magnetized water molecules and other ions (such as Ca ion of calcium, magnesium, etc.)2-、Mg2-、H-、OH-、HCO3 -...) becomes an electrostatic body, so that the magnetized water has strong adsorption effect on the microparticle dust. In addition, the solubility of the magnetized water is improved by 20-70% compared with that of common water, the polymerization degree of the magnetized water is improved by 20-90%, and all the characteristics contribute to the adsorption and capture capacity of the fine dust. Therefore, two magnetizers (having magnetic field strengths of 1500G and 2500G) are respectively installed in the intermediate cylinder 7 to make the spray liquid enterMagnetized prior to entering the device.
2. By using atomization agglomeration techniques
At the inlet of the flue gas into the apparatus, a plurality of nozzles are provided, as shown in figures 1, 13 and 14. As can be seen from FIGS. 13 and 14, six nozzles 1 were installed at 35mm height above a round pipe having a diameter of 130mm, and a magnetized water pipe was connected to the center of the apparatus at a distance of 355 mm. Therefore, when the flue gas enters the equipment, the dust in the flue gas can achieve the effects of desulfurization and dust removal under the action of the spray liquid.
3. Chemical reaction of sprayliquid and smoke
Because a small amount of desulfurizer such as ammonia water (the concentration of the mixed liquid is 0.2-0.5%, and the pH value is 10-11) is added into the spray liquid, when the sulfur dioxide in the flue gas meets the spray liquid, a chemical reaction occurs. The reaction formula is as follows:
in the formula (NH)4)2SO3The product is ammonia sulfite, and can be further prepared into an agricultural fertilizer product, so that secondary pollution is not caused.
4. Using the principle of surface tension of water and web technology
The inner walls of the intermediate cylinders 7 and 9 of the apparatus are provided with a stainless steel mesh membrane separation structure as shown in FIGS. 7 and 8 and FIGS. 9 and 10. Fig. 7 and 8 are left-handed directions, and fig. 9 and 10 are right-handed directions, and it can be clearly seen from these four views that a plurality of sets of multi-layer wire frames (the wire is a 100-mesh stainless wire net) with inclination angles of 15 to 35 degrees are uniformly distributed along the inner wall (phi 1300mm) of the cylinder body at intervals of 11.25 degrees, and the same number of stainless steel tubes with small holes are respectively arranged above the wire frames. Therefore, when the flue gas is moved downwards by the inner cylinder (shown by the dotted line part in figure 1 and phi 500mm multiplied by 2000mm multiplied by 5mm in figure 2) under the action of the induced draft fan to collide with the inner wall of the lower cylinder, and then moves towards the opposite direction, namely upwards, and a film is formed in the whole flue gas channel in the shell of the central cylinders 7 and 9, the particle grading of the particle dust is changed, so that the fine dust particles which are difficult to separate can be changed into larger secondary particles which are easy to separate, and the smoke dust is ensured to be captured in time.
The present invention provides 9 figures and brief description thereof:
FIG. 1 is a schematic diagram of the apparatus of the present invention;
1-multi-head nozzle 2-upper cylinder 3-bolt 4-nut 5-washer 6-blade 7-middle cylinder 9-middle cylinder 8-net film circulating liquid water supply pipe 10-lower cylinder 11-support A-smoke inlet B-purified smoke outlet C-smoke and circulating liquid outlet D-outer cylinder
FIG. 2 is a cross-sectional view of 2 of FIG. 1;
FIG. 3 is a schematic view of the magnetic field of water flowing through a permanent magnet;
FIG. 4 is a flow chart of a dedusting and desulfurizing circulation liquid of the equipment;
12-magnetizer 13-water pool 14-water lifting pump 15-filter 16-liquid preparation barrel 17-water pump 18-dust remover
FIGS. 5 and 6 are cross-sectional and top views of FIG. 1 at 6;
FIGS. 7 and 8 are a sectional view and a plan view (left-handed stainless steel lattice structure) of FIG. 1 at 7;
FIGS. 9 and 10 are a cross-sectional view and a top view of FIG. 1 at 9 (right-hand stainless steel lattice structure);
FIGS. 11 and 12 are cross-sectional and top views of 10 of FIG. 1; and
fig. 13 and 14 are a cross-sectional view and a front view of fig. 1.
The interrelationship between them and their performanceis set forth in connection with the above figures.
FIG. 2 is a sectional view of FIG. 1, which is a part view of the upper cylinder 2, the center of which is an inner cylinder with a diameter of 500mm × 2000mm × 5mm, which is the only passage for flue gas to enter the device, the inner cylinder is divided into two parts, the upper part is a cylinder, and the lower part is a conical cylinder (diameter 310mm) at a position 425mm away from the bottom surface, which aims to increase the speed of the flue gas. At the position 100mm away from the top, a plurality of nozzles are arranged at the center of the inner cylinder, so that an atomization area is formed at the position, and after the flue gas enters the atomization area, atomization treatment is carried out, thereby achieving the effects of desulfurization and dust removal. The top end of the component is provided with a flange plate connected with a boiler flue flange plate, and the flange plate on the right side (with the center height of 555mm) is connected with a draught fan flue flange plate. The middle is connected with the flange of the blade 6 by a flange with the diameter of 1364 mm.
FIGS. 5 and 6 are views of the part 6 (blade) in FIG. 1, wherein flanges are arranged at the upper and lower sides of the height of 150mm, the upper flange (phi 1346mm) is connected with the flange of the upper cylinder, and the lower flange is connected with the flange of the middle cylinder 7. The blades with the inclination angle of 30 degrees are uniformly distributed along the inner wall of the shell, and are arranged at the middle positions (35 mm away from the upper end surface and the lower end surface respectively), so that residual dust in the flue gas falls to the outlet at the bottom part after the flue gas moves in the net film direction to impact the blades, and is discharged into the water tank 13 along with circulating liquid.
FIGS. 7and 8, and FIGS. 9 and 10 are views of the middle cylinder, which has a height of 350mm, flanges at the upper and lower ends, and several groups of stainless steel wire frames (interval 11.25 deg.) uniformly distributed along the inner wall of the casing, wherein the wire frame 19 is a 100-mesh stainless steel wire net, and a stainless steel pipe with small holes is provided above each wire frame, so that when the circulating liquid slowly flows from the small holes to the net film, a very thin water film is immediately formed. The two parts have the same structure, but the difference is that the installation directions of the inclination angles of the net racks are opposite, one is in the left-handed direction, and the other is in the right-handed direction. The dust removal device aims to enable smoke to form a U-shaped track after the smoke passes through the net membrane framework and the net membrane up and down, so that the capacity of the net membrane for capturing smoke dust is fully exerted, and the effect of efficient dust removal is achieved.
Fig. 11 and 12 are a cross-sectional view and a top view of 10 in fig. 1. It is a component diagram of the lower cylinder of the apparatus. The height is 1310mm, and the device consists of a cylinder with the diameter of 1300mm multiplied by 600mm multiplied by 5mm and a conical cylinder with the included angle of 60 degrees. The flange (phi 1364mm) at the upper end is connected with the flange of the middle cylinder 9. 4 supporting legs are arranged at a distance of 150mm from the upper part of the conical cylinder and connected with the bracket, and the lower part of the conical cylinder is an outlet hole with a diameter of phi 60 for discharging circulating liquid and warm smoke dust. In conclusion, the whole set of equipment can be connected.
Compared with the traditional dust remover, the fog net dust removal and desulfurization equipment has the following positive effects:
1. the desulfurization efficiency is higher and the dust removal effect is better;
2. the structure is compact and reasonable, the occupied area is small, the volume of the device is only equal to two fifths of that of the same type of equipment, and the flange plates of the connecting pieces of each part are the same standard piece, so that the device is convenient to install and maintain;
3. because the device structurally adopts the design of the inward-turning U-shaped pipeline, the dust removal efficiency is improved, and the heat dissipation of the high-temperature flue gas at the inlet can be fully utilized to heat the backflow low-temperature flue gas, so that the flue gas temperature of the outlet flue gas is improved, the lifting speed of the flue gas is ensured, and the waste heat is fully utilized.
4. And (3) integration of desulfurization and dust removal: the invention has reasonable structure design, thereby realizing high-efficiency desulfurization by using ammonia water (other alkaline water such as lime water and the like). The desulfurization and the dust removal are completed at one time. And the common desulfurization and dust removal equipment is designed in a split type or a connected type, so that the occupied area is large, the manufacturing cost is high, and the desulfurization efficiency is low (about 50%).
According to the technical scheme, the specification provides an embodiment.
Example 1
Referring to fig. 1, the flue gas cleaning apparatus of the present invention comprises a plurality of nozzles 1 of an atomizing section, as shown in fig. 13 and 14. A group of nozzles are arranged below the flue gas inlet A (10 mm away from the end face of the flange), six nozzles are uniformly distributed on acircle with the diameter of 130mm, and a magnetized water pipe is connected at the position 355mm away from the central line of the inner cylinder. When the flue gas of boiler is fed into said atomizing zone, the magnetized spray liquor is added with a small quantity of desulfurizing agent-ammonia water, its content is 0.2-0.5 wt%, pH value is regulated to 10-11, and the total spray quantity is controlled in the range of 0.45 ton/hr-0.6 ton/hr. The sulfur dioxide in the flue gas is contacted with the spraying liquid to generate a chemical reaction, and the sulfur dioxide is removed. 2 is an upper cylinder, as shown in figure 2, the flange at the upper part of the upper cylinder is connected with the flange of the boiler outlet flue. The flange plate on the right side (with the center height of 555mm) is connected with a flange plate leading to a flue of the induced draft fan; the center is an inner cylinder (shown by a dotted line) which is the only channel of the flue gas, the flue gas is processed by a plurality of nozzle atomization areas and then continuously moves downwards along the cylinder, the flue gas collides with the inner wall of the lower cylinder body 10 and then moves towards the opposite direction (upwards), and the middle position of the inner cylinder is connected with a dust pan of the blade 6 by a flange with the diameter of phi 1364 mm. Is fixed by a bolt 3, a nut 4 and a washer 5. Intermediate cylinders 7 and 9 (shown in fig. 7 and 8 and fig. 9 and 10) are identical in structure. Stainless steel net-membrane separation structures are arranged on the walls in the shells (phi 1300mm), except that the inclination angles (15-35 degrees) of the net racks are opposite, one is in the left-handed direction, and the other is in the right-handed direction. Meanwhile, a stainless steel cylinder with small holes is arranged above each net frame, and when the circulating liquid slowly flows onto the net film through the small holes, a thin water film is formed. Thus, the smoke, after striking the innerwall of the lower cylinder 10, moves up to where it will surround the omentum skeleton and cross the omentum. Dust particles in the flue gas are changed, fine particles which are difficult to separate can be changed into larger secondary particles which are easy to separate, the smoke dust is captured in time, and the effect of improving dust removal is achieved. The upper flange is connected with the lower flange of the blade 6, and the lower flange is connected with the flange of the lower cylinder 10. The upper flange of the lower cylinder 10 (shown in fig. 11 and 12) is connected with the lower flange of the middle cylinder 9. The middle part of the outer cylinder body D is welded with four supporting legs (150 mm away from the upper part of the cone cylinder) which are connected with the support 11, and the bottom of the support 11 is fixed with foundation screws, so that the equipment is integrated. Therefore, after the flue gas discharged from the boiler enters the equipment at A, the flue gas is subjected to a series of effective treatments of various parts, the purified flue gas enters the chimney from B and is discharged into the atmosphere, and the circulating liquid enters the nozzles and the net membranes from 1 and 8 and flows into the water pool 13 from C along with the smoke dust (as shown in figure 4).
This example is a flue gas cleaning plant for use with a 2 ton boiler, with only necessary modifications to other types of boilers. For example, for a 4 ton boiler, it is appropriate to increase the diameter of the equipment to 1.5 m, and for a 6 ton boiler, it is appropriate to increase the diameter of the equipment to 1.7 m. Thus, the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof, and it is contemplated that other embodiments may be devised which are similar to the present disclosure and that all changes and modifications that come within the spirit of the invention and the scopethereof as determined by the skilled person are desired to be embraced therein.
In order to save water, the device can also be provided with a water circulation system, as shown in figure 4, the water in the water tank 13 is sent to the filter 15 by the water lifting pump 14 and then is divided into two paths by the filter 15; one path is sent to an ammonia preparation tank 16 (the pH value of the mixed solution of the ammonia water and the water is controlled within the range of 10-11), flows through a magnetizer 12 through a water pump 17, directly enters a plurality of nozzles, and is atomized; the other path is sent to the stainless steel tube above the stainless steel net frame of the middle cylinder 7 and 9 after passing through the magnetizer 12, most of the water of the two parts flows into the water tank 13 except that a small amount of water is evaporated and discharged from the chimney, and the water can be recycled continuously. The system can be selected at will by adopting methods such as manual, semi-automatic, full-automatic control and the like according to the needs of users.
Claims (9)
1. A fog-screen type desulfurization dust-removing equipment, comprising:
the device comprises an outer cylinder body (D) and an inner cylinder body connected with the outer cylinder body, wherein a plurality of nozzles (1) are arranged at the upper part of the cylinder body;
the outer cylinder body (D) consists of an upper cylinder body (2), middle cylinder bodies (7) and (9), a lower cylinder body (10) and a conical water outlet (C);
a stainless steel net separating structure is arranged in the shells of the middle cylinders (7) and (9), and a stainless steel pipe with small holes is arranged above each net rack;
and the outer parts of the shells of the middle cylinders (7) and (9) are connected with a magnetizing device (12).
2. Desulfurization dust-removing equipment according to claim 1, characterized in that the upper end of the inner cylinder is connected with the flue outlet (A) of the boiler.
3. The desulfurization and dust removal apparatus according to claim 1, wherein said inner cylinder is provided at an upper portion thereof with a plurality of spray nozzles (1) forming a spray zone.
4. The desulfurization dust-removing apparatus according to claim 1, wherein the spray liquid contains 0.2 to 0.5% by weight of waste ammonia water or lime water and has a pH value of 10 to 11.
5. The desulfurization dust-removing apparatus according to claim 1, characterized in that said spray liquid is a spray liquid magnetized by a magnetizer (12).
6. The desulfurization dust removing apparatus according to claim 1, wherein the intermediate cylinders (7) and (9) are respectively provided with a stainless steel mesh membrane separation structure.
7. The desulfurization and dust removal apparatus according to claim 6, wherein the stainless net film separation structures of the intermediate cylinders (7) and (9) have net frames inclined at an angle of 15 ° to 30 ° in opposite directions.
8. The desulfurization and dust removal apparatus of claim 7, wherein a stainless steel pipe with small holes is installed above each net frame.
9. The desulfurization and dust removal equipment according to claim 1, characterized in that four legs connected with the support (11) are welded at the middle part of the shell of the outer cylinder (D).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99100019A CN1077444C (en) | 1999-01-05 | 1999-01-05 | Fog-net type desulfurating dust-removing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99100019A CN1077444C (en) | 1999-01-05 | 1999-01-05 | Fog-net type desulfurating dust-removing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1223162A CN1223162A (en) | 1999-07-21 |
| CN1077444C true CN1077444C (en) | 2002-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99100019A Expired - Fee Related CN1077444C (en) | 1999-01-05 | 1999-01-05 | Fog-net type desulfurating dust-removing equipment |
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| CN (1) | CN1077444C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI20061133A0 (en) * | 2006-12-19 | 2006-12-19 | Outokumpu Oy | Equipment for filtering process gas |
| WO2014102624A1 (en) * | 2012-12-28 | 2014-07-03 | Babu Sudarshan Anantharam | System for generating steam |
| CN108325313A (en) * | 2018-02-05 | 2018-07-27 | 刘青建 | A kind of Casting Equipment soot processing device |
| CN112266807B (en) * | 2019-04-12 | 2021-11-16 | 新沂市久元矿业有限公司 | Coal desulfurization device |
| CN112044179B (en) * | 2020-09-02 | 2021-12-21 | 江苏鸿捷环保设备有限公司 | Large granule impurity interception equipment in magnetic pendulum formula waste gas |
| CN116392917A (en) * | 2023-05-26 | 2023-07-07 | 河北师范大学 | Device for improving growth of fine particles based on condition of low energy consumption of vapor phase |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1081753A (en) * | 1993-08-03 | 1994-02-09 | 王明环 | A kind of smoke desulfurization dust remover of coal boiler |
| US5464802A (en) * | 1992-04-23 | 1995-11-07 | Ministero Dell'universita' E Della Ricerca Scientifica E Tecnologica | Process for preparing a supported metal catalyst for the selective hydrogenation of hydrocarbons by means of such a process and process for selective hydrogenation of hydrocarbons using such a catalyst |
-
1999
- 1999-01-05 CN CN99100019A patent/CN1077444C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5464802A (en) * | 1992-04-23 | 1995-11-07 | Ministero Dell'universita' E Della Ricerca Scientifica E Tecnologica | Process for preparing a supported metal catalyst for the selective hydrogenation of hydrocarbons by means of such a process and process for selective hydrogenation of hydrocarbons using such a catalyst |
| CN1081753A (en) * | 1993-08-03 | 1994-02-09 | 王明环 | A kind of smoke desulfurization dust remover of coal boiler |
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| CN1223162A (en) | 1999-07-21 |
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