CN114272710A - Core-making sand pipeline gas purification system - Google Patents
Core-making sand pipeline gas purification system Download PDFInfo
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- CN114272710A CN114272710A CN202111355295.0A CN202111355295A CN114272710A CN 114272710 A CN114272710 A CN 114272710A CN 202111355295 A CN202111355295 A CN 202111355295A CN 114272710 A CN114272710 A CN 114272710A
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- 238000000746 purification Methods 0.000 title claims abstract description 33
- 239000004576 sand Substances 0.000 title claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 83
- 238000012545 processing Methods 0.000 claims abstract description 34
- 238000005507 spraying Methods 0.000 claims abstract description 15
- 238000001914 filtration Methods 0.000 claims abstract description 10
- 238000012216 screening Methods 0.000 claims abstract description 9
- 239000007789 gas Substances 0.000 claims description 74
- 230000004888 barrier function Effects 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000002274 desiccant Substances 0.000 claims description 5
- 238000011084 recovery Methods 0.000 claims description 5
- 239000000567 combustion gas Substances 0.000 claims description 4
- 239000000654 additive Substances 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 3
- 239000003463 adsorbent Substances 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000010354 integration Effects 0.000 abstract 1
- 238000000926 separation method Methods 0.000 description 7
- 239000012535 impurity Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 3
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- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
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- 230000008859 change Effects 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
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Abstract
The invention provides a core-making sand pipeline gas purification system, which belongs to the technical field of gas treatment and comprises the following components: the device comprises a treatment tank, a plurality of material spraying nozzles, a material containing frame, a connecting cylinder and a filtering roll. The rotational flow sleeve is provided with an air inlet. The material spraying nozzles are arranged on the rotational flow sleeve and the confluence sleeve at intervals, and inject processing materials with various meshes into the rotational flow sleeve and the confluence sleeve, and the processing materials are used for purifying gas. The material containing frame is communicated with the bottom of the confluence sleeve, and a screen used for screening various processing materials is arranged in the material containing frame. The connecting cylinder is communicated with the upper part of the rotational flow sleeve. The filter roll is unreeled to a filter screen, and the filter screen runs through the connecting cylinder and is used for filtering gas discharged from the rotary flow sleeve. The treatment tank in the core-making sand pipeline gas purification system provided by the invention can correspondingly treat gas by means of injected multiple treatment materials, and the filter screen can separate the treatment materials and filter the passing gas, so that the integration level of the whole equipment is higher, and the operation and maintenance cost is lower.
Description
Technical Field
The invention belongs to the technical field of gas treatment, and particularly relates to a core-making sand pipeline gas purification system.
Background
During the production in a cast-pipe plant, large amounts of toxic gases are produced, containing impurities, which are usually large in size and, if discharged directly, can cause very serious pollution to the atmosphere. In order to protect the environment and meet the requirements of environmental protection, the gas needs to be purified to a preset standard before being discharged.
Because the gas components that the mill produced when actual production are more and the proportion change width between the component is great, in order to can carry out comparatively abundant purification, need make gas circulation a plurality of processing jars in proper order, every processing jar is equipped with the chemical substance that is used for adsorption or catalytic reaction, although above-mentioned method can satisfy the requirement of purification, the input cost of equipment is more area is great, needs more operation and maintenance cost.
Disclosure of Invention
The invention aims to provide a core-making sand pipeline gas purification system, and aims to solve the problems that the investment cost of equipment is high, the occupied area is large, and the operation and maintenance cost is high.
In order to achieve the purpose, the invention adopts the technical scheme that: providing a core-making sand pipe gas purification system comprising:
the treatment tank comprises a rotational flow sleeve and a converging sleeve, the converging sleeve is fixed and communicated with the bottom of the rotational flow sleeve, and the cross section of the inner cavity of the converging sleeve is gradually reduced from the rotational flow sleeve downwards; the rotational flow sleeve is provided with an air inlet;
the material spraying nozzles are arranged on the rotational flow sleeve and the confluence sleeve at intervals, and inject processing materials with various meshes into the rotational flow sleeve and the confluence sleeve, and the processing materials are used for purifying gas;
the material containing frame is communicated with the bottom of the confluence sleeve, and a screen used for screening various processing materials is arranged in the material containing frame;
the connecting cylinder is communicated above the rotational flow sleeve;
the filter roll, it unreels for the filter screen to filter the book, the filter screen runs through the connecting cylinder is used for filtering certainly whirl cover combustion gas.
In a possible implementation manner, the screen is arranged obliquely downwards, sieve holes with various sizes are arranged in the length direction of the screen, the sieve holes correspond to the processing materials with various meshes in a one-to-one manner, and a recovery tank used for collecting the corresponding processing materials is arranged below the sieve holes.
In a possible implementation manner, the screen is slidably arranged on the material containing frame, and a vibration motor is installed on one side of the screen.
In a possible implementation manner, a winding roller is arranged on one side of the connecting cylinder, and the filter screen is wound on the winding roller.
In a possible implementation manner, an auxiliary spray nozzle is installed on the cyclone sleeve and the confluence sleeve, and the auxiliary spray nozzle is used for injecting one or more of any combination of a catalyst, a solvent, an additive, an adsorbent, a drying agent and a reducing agent into the cyclone sleeve and the confluence sleeve.
In a possible implementation manner, a plurality of connecting rollers are hermetically arranged on the connecting cylinder, and the filter screen is arranged between the two opposite connecting rollers in a penetrating manner.
In a possible realization mode, a flow guide plate is spirally arranged along the height direction of the inner walls of the rotational flow sleeve and the confluence sleeve.
In a possible implementation manner, two layers of barrier nets are fixed in the connecting cylinder, and the filter screen is arranged between the two barrier nets in a penetrating manner.
In a possible implementation manner, the cross section of the inner cavity of the connecting cylinder increases upwards from the rotational flow sleeve, and the blocking net is an arc-shaped piece bent upwards.
In a possible implementation manner, the outer wall of the rotational flow sleeve and the outer wall of the confluence sleeve are both sleeved with heating sleeves.
The core-making sand pipeline gas purification system provided by the invention has the beneficial effects that: compared with the prior art, the treatment tank in the core-making sand pipeline gas purification system comprises the rotational flow sleeve and the confluence sleeve, and the rotational flow sleeve is provided with the gas inlet. The connecting cylinder communicates in the top of whirl cover, filters to roll up and unreel the back and be the filter screen to the filter screen can run through the connecting cylinder. And a plurality of material spraying nozzles are arranged on the rotational flow sleeve and the confluence sleeve at intervals, and the material spraying nozzles are used for injecting processing materials with various meshes for purifying gas. The bottom of the confluence sleeve is communicated with a material containing frame, and a screen for screening various treatment materials is arranged in the material containing frame.
In practical application, gas enters the treatment tank from the gas inlet, and in the flowing process of the gas in the rotational flow sleeve and the confluence sleeve, a plurality of material spraying nozzles inject a plurality of treatment materials which are used for carrying out corresponding treatment on the gas. Because the inner cavity of the confluence sleeve is gradually decreased from the spinning sleeve downwards, a plurality of processed materials after the reaction flow into the material containing frame from the bottom of the confluence sleeve, and the processed materials with different meshes can be screened under the action of the screen mesh, thereby facilitating the subsequent processing. The treated gas flows into the connecting cylinder from the top of the rotational flow sleeve and is filtered by the filter screen, and the filter screen in the connecting cylinder can be replaced by unreeling the filter roll, so that the frequent disassembly of related components is avoided. In this application, the processing jar carries out corresponding processing with the help of the multiple processing material of injection to gas, and the filter screen can carry out the separation to handling the material on the one hand, can filter the gas that passes through simultaneously, has finally improved the gaseous quality of combustion gas, and more importantly, the level of integrating of whole equipment is higher, and operation and maintenance cost are lower.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic diagram of a blower coupled to a treatment tank according to an embodiment of the present invention;
FIG. 2 is a schematic view of a connection between a swirl sleeve and a flow-converging sleeve according to an embodiment of the present invention;
fig. 3 is a partial enlarged view at a in fig. 2.
In the figure: 1. a rotational flow sleeve; 2. a flow converging sleeve; 3. a connecting cylinder; 4. a material spraying nozzle; 5. a wind-up roll; 6. filtering the roll; 7. a blower; 8. a gasket; 9. a barrier net; 10. a connecting roller; 11. a material containing frame; 12. screening a screen; 13. a drainage plate; 14. an air inlet pipe.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 3 together, a core-making sand pipe gas purification system according to the present invention will now be described. System core sand pipe gas purification system includes: a treatment tank, a plurality of material spraying nozzles 4, a material containing frame 11, a connecting cylinder 3 and a filter roll 6. The treatment tank comprises a rotational flow sleeve 1 and a confluence sleeve 2, the confluence sleeve 2 is fixed and communicated with the bottom of the rotational flow sleeve 1, and the cross section of the inner cavity of the confluence sleeve 2 is gradually decreased downwards from the rotational flow sleeve 1; the rotational flow sleeve 1 is provided with an air inlet. The plurality of material spraying nozzles 4 are arranged on the rotational flow sleeve 1 and the confluence sleeve 2 at intervals, the material spraying nozzles 4 inject processing materials with various meshes into the rotational flow sleeve 1 and the confluence sleeve 2, and the processing materials are used for purifying gas. The material containing frame 11 is communicated with the bottom of the confluence sleeve 2, and a screen 12 for screening various processing materials is arranged in the material containing frame 11. The connecting cylinder 3 is communicated with the upper part of the rotational flow sleeve 1. The filter roll 6 is unreeled as a filter screen, and the filter screen penetrates through the connecting cylinder 3 and is used for filtering gas exhausted from the rotary flow sleeve 1.
The core-making sand pipeline gas purification system provided by the invention has the beneficial effects that: compared with the prior art, the treatment tank in the core-making sand pipeline gas purification system comprises the rotational flow sleeve 1 and the confluence sleeve 2, and the rotational flow sleeve 1 is provided with the gas inlet. The connecting cylinder 3 is communicated above the rotational flow sleeve 1, the filter roll 6 is a filter screen after being unreeled, and the filter screen can penetrate through the connecting cylinder 3. A plurality of material spraying nozzles 4 are arranged on the rotational flow sleeve 1 and the confluence sleeve 2 at intervals, and the material spraying nozzles 4 are used for injecting processing materials with various meshes for purifying gas. The bottom of the confluence sleeve 2 is communicated with a material containing frame 11, and a screen 12 for screening various processing materials is arranged in the material containing frame 11.
In practical application, gas enters the treatment tank from the gas inlet, and in the flowing process of the gas in the rotational flow sleeve 1 and the confluence sleeve 2, a plurality of material spraying nozzles 4 inject a plurality of treatment materials which are used for correspondingly treating the gas. Because the inner cavity of the confluence sleeve 2 is gradually decreased from the spinning sleeve 1 downwards, a plurality of processed materials after the reaction flow into the material containing frame 11 from the bottom of the confluence sleeve 2, and the processed materials with different meshes can be screened under the action of the screen 12, so that the subsequent processing is facilitated. The treated gas flows into the connecting cylinder 3 from the top of the rotational flow sleeve 1 and is filtered by the filter screen, and the filter screen in the connecting cylinder 3 can be replaced by unreeling the filter roll 6, so that the frequent disassembly of related components is avoided. In this application, the processing jar carries out corresponding processing with the help of the multiple processing material of injection to gas, and the filter screen can carry out the separation to handling the material on the one hand, can filter the gas that passes through simultaneously, has finally improved the gaseous quality of combustion gas, and more importantly, the level of integrating of whole equipment is higher, and operation and maintenance cost are lower.
The top inner diameter of the cyclone sleeve 1 and the bottom of the confluence sleeve 2 are the same, the bottom of the cyclone sleeve is of a structure similar to a cone, an air inlet pipe 14 is communicated with the air inlet, and one end, far away from the cyclone sleeve 1, of the air inlet pipe 14 is communicated with an air blower 7. The air inlet direction of the air inlet pipe 14 is tangent to the periphery of the rotational flow sleeve 1. The exterior structure of the treatment tank is similar to a cyclone separator, the cyclone separator is a device for primary separation and filtration, the cyclone separator can only separate the larger impurities of the particles, and the smaller easily-floating impurities of the corresponding particles can not realize effective filtration treatment.
In some embodiments of the core-making sand pipeline gas purification system provided by the present application, please refer to fig. 2, the screen 12 is disposed obliquely downward, screen holes with various sizes are disposed along the length direction of the screen 12, the various screen holes correspond to the processing materials with various meshes one by one, and a recovery tank for collecting the corresponding processing materials is disposed below the screen holes. A plurality of recovery grooves are formed below the screen 12, and each recovery groove is used for collecting corresponding processing materials. The mesh size gradually increases from the top of the screen 12 in the downward direction, thereby allowing for the screening of a variety of treatment materials.
In some embodiments of the core-making sand pipeline gas purification system provided in the present application, please refer to fig. 2, the screen 12 is slidably disposed on the material holding frame 11, and a vibration motor is installed on one side of the screen 12. After the gas treatment by the plurality of treatment materials is completed, the treatment materials need to be recovered and sorted. For the convenience of distinguishing, the mesh numbers of various processing materials are different. Meanwhile, a supporting block is arranged on the inner wall of the material containing frame 11, and the screen 12 is arranged on the supporting block in a sliding manner. To increase the screening capacity of the screen 12, the screen 12 is driven by a vibrating motor to slide back and forth on the support block so that the smaller mesh size of the processed material falls below the screen 12, while the larger mesh size of the processed material can roll along the screen 12 and fall to one side of the screen 12.
In some embodiments of the core-making sand pipe gas purification system provided by the present application, please refer to fig. 1 to 3 together, a wind-up roll 5 is disposed on one side of the connecting cylinder 3, and the filter screen is wound on the wind-up roll 5. The tradition is provided with the fastener along the outer edge at the filter screen, makes the filter screen keep the state of an expansion, but its surface can adhere to impurity after the filter screen uses a period, and the piling up of impurity finally can lead to the air volume to reduce, and air-blower 7's load increase needs regularly to be changed the filter screen for this reason, but for reasons such as leakproofness, need dismantle the change that relevant structure could realize the filter screen this moment, and whole process is comparatively loaded down with trivial details. For this purpose, a filter roll 6 is placed on one side of the connecting cylinder 3 and a wind-up roll 5 is placed on the other side. Thereby wind-up roll 5 rotates and pulls the filter screen, and when partial filter screen impurity was more this moment, rotatable wind-up roll 5 made old filter screen rolling and new filter screen unreel the roll-out, and whole process is convenient for operate, need not dismantle.
In some embodiments of the core-making sand pipeline gas purification system provided by the present application, the swirl sleeve 1 and the confluence sleeve 2 are provided with auxiliary nozzles, and the auxiliary nozzles are used for injecting one or more of a catalyst, a solvent, an additive, an adsorbent, a desiccant and a reducing agent into the swirl sleeve 1 and the confluence sleeve 2. The treatment material has certain requirements on the environment during the reaction, in real time, the treatment material needs to be carried out under the condition of relative dryness, but the humidity of the gas entering the cyclone sleeve 1 is high, at the moment, the auxiliary spray head can spray the drying agent into the cyclone sleeve 1, and the drying agent can absorb the water in the gas in advance.
The auxiliary spray heads can be arranged at corresponding positions of the rotational flow sleeve 1 and the confluence sleeve 2 according to requirements, and the auxiliary spray heads at the corresponding positions are opened or closed according to different conditions required by reaction.
In some embodiments of the core-making sand pipe gas purification system provided by the present application, please refer to fig. 2 and 3, a plurality of connection rollers 10 are hermetically disposed on the connection cylinder 3, and the filter screen is disposed between two opposite connection rollers 10. The filter screen needs run through connecting cylinder 3, consequently need set up on two relative lateral walls of connecting cylinder 3 and dodge the hole, and the filter screen is worn to establish and dodges downtheholely two. But because the velocity of flow of gas is very fast in connecting cylinder 3, in order to avoid gas to spill over from dodging the downthehole, guarantee simultaneously that the filter screen can stably spread in the inside of connecting cylinder 3, consequently dodge the hole department and rotate and be provided with two connecting rollers 10, two connecting rollers 10 set up relatively, the filter screen is worn to establish between two connecting rollers 10. The connecting rollers 10 mounted on the connecting cylinder 3 may be four in total. In order to ensure the tightness, a sealing gasket 8 is arranged in the avoiding hole, the connecting roller 10 is attached to the sealing gasket 8, and the sealing gasket 8 is a flexible material part with certain elasticity. The small gap between the two joining rollers 10 ensures airtightness, and the filter net can smoothly enter the connecting cylinder 3 by rotating the joining rollers 10.
In some embodiments of the core-making sand pipe gas purification system provided by the present application, please refer to fig. 2, a flow guide plate 13 is spirally arranged along the height direction of the inner walls of the swirling flow sleeve 1 and the converging flow sleeve 2. After the gas enters from the rotational flow sleeve 1, the gas firstly carries out spiral motion along the inner wall of the rotational flow sleeve 1, and the number of times of the gas rotating in the rotational flow sleeve 1 and the confluence sleeve 2 is related to the height of the rotational flow sleeve 1 and the confluence sleeve 2, the position and the angle of an air inlet and the like.
Although a plurality of material spraying nozzles 4 are arranged on the rotational flow sleeve 1 and the converging sleeve 2, when a plurality of treatment materials are required to be sequentially contacted with gas according to a certain sequence, if no limiting structure is arranged, the flowing direction of the gas cannot be planned, the mixed flow of the gas is extremely easy to cause more serious, and finally the gas cannot be purified according to a preset sequence. In order to solve the problems, the inner walls of the cyclone sleeve 1 and the confluence sleeve 2 are provided with the drainage plates 13 of corresponding structures, the drainage plates 13 are spirally arranged in the height direction, the flowing direction of gas is limited by the arrangement of the drainage plates 13, and the final treatment effect is ensured.
When the gas is treated, only one of the treatment materials can be injected into the swirl sleeve 1 and the confluence sleeve 2 by closing part of the material injection nozzles 4 as required.
In some embodiments of the core-making sand pipeline gas purification system provided by the present application, please refer to fig. 2 and 3, two layers of barrier nets 9 are fixed in the connecting cylinder 3, and the filter net is arranged between the two barrier nets 9. The gas velocity of flow that gets into in the whirl cover 1 from the air inlet is very fast, avoids gaseous to have the impact to the filter screen to make the filter screen destroyed, perhaps gaseous flows out from the clearance between filter screen and the connecting cylinder 3 and leads to the filtering capability of filter screen to become invalid. For this reason be provided with two-layer separation net 9, the side of separation net 9 and the lateral wall of connecting cylinder 3 slip laminating, the expansion that the filter screen can tile under the centre gripping of two-layer separation net 9 simultaneously to final filter effect has been guaranteed.
In some embodiments of the core sand pipe gas purification system provided herein, referring to fig. 1 and 2, the cross-section of the inner cavity of the connecting cylinder 3 increases upward from the flow sleeve 1, and the blocking screen 9 is an arc-shaped member that curves upward. In order to make the filter screen can carry out effectual filtration to gas to the area of contact of increase gas and filter screen, consequently connecting cylinder 3 is the similar loudspeaker column structure of upward opening in this application, and two-layer separation net 9 is the arc piece of kickup, thereby has guaranteed through this kind of design furthest that the filter screen has sufficient area of contact with the air in connecting cylinder 3.
In some embodiments of the core-making sand pipeline gas purification system provided by the present application, the outer wall of the swirling flow sleeve 1 and the outer wall of the confluence sleeve 2 are both sheathed with heating sleeves. Since the gas in the swirl sleeve 1 and the collecting sleeve 2 has a high speed and a low temperature, the swirl sleeve 1 and the collecting sleeve 2 can be sleeved with heating sleeves so that the gas can be purified by the processing material at an appropriate temperature. The heating jacket is externally connected with a power supply, and the output power of the heating jacket is adaptively changed by arranging temperature sensors in the rotational flow jacket 1 and the confluence jacket 2.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. System core sand pipe gas purification system, its characterized in that includes:
the treatment tank comprises a rotational flow sleeve and a converging sleeve, the converging sleeve is fixed and communicated with the bottom of the rotational flow sleeve, and the cross section of the inner cavity of the converging sleeve is gradually reduced from the rotational flow sleeve downwards; the rotational flow sleeve is provided with an air inlet;
the material spraying nozzles are arranged on the rotational flow sleeve and the confluence sleeve at intervals, and inject processing materials with various meshes into the rotational flow sleeve and the confluence sleeve, and the processing materials are used for purifying gas;
the material containing frame is communicated with the bottom of the confluence sleeve, and a screen used for screening various processing materials is arranged in the material containing frame;
the connecting cylinder is communicated above the rotational flow sleeve;
the filter roll, it unreels for the filter screen to filter the book, the filter screen runs through the connecting cylinder is used for filtering certainly whirl cover combustion gas.
2. A core making sand pipe gas cleaning system as claimed in claim 1, wherein said screen is disposed obliquely downward, screen holes of various sizes are provided along the length direction of said screen, a plurality of said screen holes correspond one-to-one to a plurality of meshes of said processing materials, and a recovery tank for collecting the corresponding said processing materials is provided below said screen holes.
3. The core-making sand pipe gas purification system as recited in claim 1, wherein said screen is slidably disposed on said material-holding frame, and a vibration motor is installed at one side of said screen.
4. The core-making sand pipe gas purification system of claim 1, wherein a wind-up roll is provided at one side of the connecting cylinder, and the filter screen is wound on the wind-up roll.
5. The cored sand pipe gas purification system of claim 1, wherein auxiliary spray heads are mounted on the swirl sleeve and the manifold sleeve for injecting any combination of one or more of a catalyst, a solvent, an additive, an adsorbent, a desiccant, and a reductant into the swirl sleeve and the manifold sleeve.
6. The core-making sand pipe gas purification system as claimed in claim 1, wherein a plurality of connecting rollers are hermetically provided on the connecting cylinder, and the filter screen is inserted between two opposite connecting rollers.
7. The core-making sand pipe gas purification system as recited in claim 1, wherein a flow guide plate is spirally disposed along the height direction of the inner walls of the cyclone sleeve and the flow converging sleeve.
8. The core-making sand pipe gas purification system as recited in claim 1, wherein two layers of barrier nets are fixed in said connecting cylinder, and said filter screen is inserted between said two barrier nets.
9. The core-making sand pipe gas purification system as recited in claim 8, wherein the cross-section of the connecting cylinder lumen increases upward from the swirl sleeve, and the barrier screen is an upwardly curved arc.
10. The core-making sand pipe gas purification system as recited in claim 1, wherein the outer wall of said swirl sleeve and the outer wall of said flow-converging sleeve are each sheathed with a heating jacket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111355295.0A CN114272710A (en) | 2021-11-16 | 2021-11-16 | Core-making sand pipeline gas purification system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111355295.0A CN114272710A (en) | 2021-11-16 | 2021-11-16 | Core-making sand pipeline gas purification system |
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| CN114272710A true CN114272710A (en) | 2022-04-05 |
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| CN202111355295.0A Pending CN114272710A (en) | 2021-11-16 | 2021-11-16 | Core-making sand pipeline gas purification system |
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| CN210477481U (en) * | 2019-07-11 | 2020-05-08 | 青海第三路桥建设有限公司 | Screening device for asphalt recovery |
| CN210585830U (en) * | 2019-09-24 | 2020-05-22 | 河南银旺实业有限公司 | Multistage shale shaker of fracturing quartz sand |
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- 2021-11-16 CN CN202111355295.0A patent/CN114272710A/en active Pending
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|---|---|---|---|---|
| EP0865330A1 (en) * | 1995-10-06 | 1998-09-23 | Tox Free Systems Limited | Volatile materials treatment system |
| US20040069703A1 (en) * | 2002-09-18 | 2004-04-15 | Wanni Amar S. | Fouling mitigation device with movable screen |
| US20140020558A1 (en) * | 2011-01-11 | 2014-01-23 | Sridhar Gururaja Rao | Apparatus and method for removal of particulate matter from a gas |
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