CN111729417A - Dust purification method and device of mixing equipment and mixing equipment - Google Patents
Dust purification method and device of mixing equipment and mixing equipment Download PDFInfo
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- CN111729417A CN111729417A CN202010688574.8A CN202010688574A CN111729417A CN 111729417 A CN111729417 A CN 111729417A CN 202010688574 A CN202010688574 A CN 202010688574A CN 111729417 A CN111729417 A CN 111729417A
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- 238000000746 purification Methods 0.000 title claims abstract description 68
- 238000002156 mixing Methods 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 58
- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 238000001514 detection method Methods 0.000 claims abstract description 30
- 238000010438 heat treatment Methods 0.000 claims abstract description 26
- 230000000694 effects Effects 0.000 claims abstract description 22
- 238000007599 discharging Methods 0.000 claims description 20
- 238000002485 combustion reaction Methods 0.000 claims description 17
- 238000004140 cleaning Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 230000008901 benefit Effects 0.000 abstract description 7
- 230000007613 environmental effect Effects 0.000 abstract description 5
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
- B01D46/0013—Modules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0039—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices
- B01D46/0041—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices for feeding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/448—Auxiliary equipment or operation thereof controlling filtration by temperature measuring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/181—Preventing generation of dust or dirt; Sieves; Filters
- B01F35/187—Preventing generation of dust or dirt; Sieves; Filters using filters in mixers, e.g. during venting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/025—Other waste gases from metallurgy plants
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to the technical field of ferrous metallurgy equipment, in particular to a dust purification method and device of mixing equipment and the mixing equipment. The device is used for being connected with blendor and material detection device respectively, and it includes: a negative pressure generating mechanism is arranged in the purifier; one end of the air inlet pipeline is connected into the purifier in an openable mode, the other end of the air inlet pipeline is communicated with a dust removal port of the mixer through a dust collection cover, the dust collection cover is communicated with an air outlet of the material detection device, and a heating assembly is mounted on the air inlet pipeline; and the exhaust pipeline is communicated with the purifier, and the air inlet pipeline is connected with the exhaust pipeline in an openable and closable manner. The device has the advantage of environmental protection, and can perform high-efficiency reasonable dedusting and purifying effects on the unorganized emission of the mixing equipment so as to reduce or even eliminate the adverse effect of the dusty gas emitted by the mixing equipment on the environment of a factory.
Description
Technical Field
The invention relates to the technical field of ferrous metallurgy equipment, in particular to a dust purification method and device of mixing equipment and the mixing equipment.
Background
Most of the raw materials of products in the industries of metallurgy, chemical industry, building materials and the like are mixed materials, and all components in the mixed materials need to be uniformly mixed so as to ensure the product performance and quality. In particular, the raw materials of the sintered pellets in the steel industry are all powder materials, and the raw materials have large component difference, so that a powerful mixer with strong mixing capability is generally adopted as mixing equipment for ensuring the product performance and the quality. The vertical mixer has the characteristics of strong mixing capability, good mixing effect and high mixing efficiency, and can be widely applied to raw material mixing in the field of sintering and pelletizing in the steel industry.
The existing vertical mixer inevitably generates a certain amount of dust due to the characteristics of raw materials in the feeding and raw material mixing processes. And, for further promoting vertical blendor's intensive mixing performance, still be connected with material mixing degree on-line measuring device on current vertical blendor, material mixing degree on-line measuring device can discharge the granule material because of needs in service, also can accompany partial dust and produce in the discharge process. These dusts are all classified as inorganics.
However, the existing vertical mixer has no effective system dust removal method, and because the existing vertical mixer has a small dust production amount and contains a certain amount of water vapor, the existing vertical mixer is not suitable for the common centralized purification methods of cloth bag dust removal, electric dust removal and the like in the existing steel plant, so the existing vertical mixer does not have an effective dust removal purification facility. If the dusty gas is simply discharged outside the plant area, the environment near the plant area is affected, and a large amount of dust is deposited on the ground of the plant area, so that great harm is brought to the production activities of the plant area. Although the plant area can adopt the measures of dust prevention such as regular cleaning, watering and dust reduction, the measures can only address the symptoms and can not address the root causes, and the dust settled on the ground is also easily influenced by the production activities to generate secondary dust raising. And, with the improvement of environmental protection requirements, more and more unorganized emissions are brought into the environmental protection treatment range.
Therefore, how to efficiently and reasonably remove dust and purify the unorganized emission of the mixing equipment becomes a problem to be solved urgently by the existing mixing equipment.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art.
Therefore, the invention provides a dust purification device of mixing equipment, which aims to solve the problem of how to efficiently and reasonably remove dust and purify the unorganized emission of the existing mixing equipment.
The invention also provides a mixing device.
The invention also provides a dust purification method of the mixing equipment.
According to an embodiment of the first aspect of the present invention, a dust purification apparatus of a mixing device is used to connect with a mixer and a material detection apparatus, respectively, and includes:
a negative pressure generating mechanism is arranged in the purifier;
the air inlet pipeline is connected into the purifier in an openable and closable manner, the other end of the air inlet pipeline is communicated with a dust removal port of the mixer through a dust collection cover, the dust collection cover is communicated with an air outlet of the material detection device, and a heating assembly is mounted on the air inlet pipeline;
and the exhaust pipeline is communicated with the purifier, and the air inlet pipeline is connected with the exhaust pipeline in an openable and closable manner.
According to one embodiment of the invention, the purifier further comprises a first pipeline and a second pipeline, one end of the air inlet pipeline is communicated into the purifier through the second pipeline, one end of the first pipeline is communicated with the joint between the air inlet pipeline and the second pipeline, and the other end of the first pipeline is communicated with the exhaust pipeline; and valves are respectively arranged in the first pipeline and the second pipeline.
According to an embodiment of the present invention, the exhaust device further includes an exhaust port, a first port and a second port, the exhaust port penetrates through the top of the purifier, the first port and the second port penetrate through the side surface of the purifier, respectively, the second port is located below the first port, the exhaust duct communicates with the exhaust port, the first duct communicates with the first port, and the second duct communicates with the second port.
According to an embodiment of the invention, the first port is through the exhaust duct.
According to one embodiment of the present invention, temperature sensors are installed in the first and second pipes, respectively.
According to one embodiment of the invention, the heating assembly comprises a combustion chamber communicating with the air inlet duct and a combustion nozzle mounted in the combustion chamber.
According to one embodiment of the present invention, the heating assembly comprises a hot air duct communicating into the air inlet duct and a hot air regulating valve installed in the hot air duct.
A mixing apparatus according to an embodiment of the second aspect of the present invention comprises a material mixer, a material detection device, and the dust purification device as described above, which is connected to the material mixer and the material detection device, respectively.
According to one embodiment of the invention, a feed inlet and a dust removal port are respectively arranged on two sides of the top of the mixer, the feed inlet is connected with a feeding mechanism, a protective cover is arranged outside the feed inlet, and the dust removal port is communicated with a dust collection cover of the dust purification device;
the top of the mixer is also provided with a feed back port, the bottom of the mixer is provided with a discharge port, the feed back port is communicated to the interior of the purifier of the dust purification device through a feed back pipeline, and the discharge port is communicated with a discharge mechanism;
the material detection device comprises a material taking mechanism, a detector and a discharger, wherein the material taking mechanism is connected between a discharge port of the mixer and the detector, an inlet, a discharge port and an exhaust port are respectively arranged on the discharger, the detector is connected with the inlet of the discharger, the exhaust port of the discharger is communicated into a gas collecting hood of the dust purification device through a gas collecting pipeline, and the discharge port of the discharger is communicated with the discharge mechanism.
A dust cleaning method of a mixing device according to an embodiment of a third aspect of the present invention is characterized in that it is proposed based on the dust cleaning apparatus as described above or the mixing device as described above, the dust cleaning method includes:
communicating an air inlet pipeline and an exhaust pipeline, and respectively driving a negative pressure generating mechanism in a purifier and a heating assembly in the air inlet pipeline to operate so as to gradually heat up the gas collected in a dust collection cover in the process that the gas flows through the air inlet pipeline, and discharging the heated gas through the exhaust pipeline;
and the temperature of the gas is raised to a preset temperature, the gas inlet pipeline and the gas exhaust pipeline are disconnected, and the gas inlet pipeline and the purifier are communicated, so that the gas respectively discharged by the mixer and the material detection device is collected in the dust collection cover under the negative pressure effect, the gas after temperature rise flowing through the gas inlet pipeline enters the purifier under the negative pressure effect to be purified, and the purified gas is discharged through the gas exhaust pipeline.
One or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:
the dust purification device of the mixing equipment provided by the embodiment of the invention is used for being respectively connected with a mixer and a material detection device of the mixing equipment. This dust purification device includes: a negative pressure generating mechanism is arranged in the purifier; one end of the air inlet pipeline is connected into the purifier in an openable way, the other end of the air inlet pipeline is communicated with a dust removal port of the mixer through a dust collection cover, and the dust collection cover is communicated with an air outlet of the material detection device; and the exhaust pipeline is communicated with the purifier, and the air inlet pipeline is connected with the exhaust pipeline in an openable and closable manner. The device has the advantage of environmental protection, and can utilize the negative pressure generating mechanism to generate negative pressure in the gas inlet pipeline, so that the gas discharged by the mixer and the material detection device is respectively extracted by utilizing the negative pressure effect, the high-efficiency, reasonable and comprehensive dedusting and purifying effect on the unorganized discharge of the mixing equipment is realized, and the adverse effect of the dusty gas discharged by the mixing equipment on the plant area environment is further reduced or even eliminated.
Further, install heating element on this dust purification device's the admission line, utilize heating element to collect and flow through the gas that admits air the pipeline and heat up to make the gas after the intensification can obtain more abundant efficient dust removal purification treatment in getting into the clarifier later, in order to improve the unorganized emission to mixing apparatus and carry out reasonable and efficient dust removal purification effect.
The mixing equipment provided by the embodiment of the invention comprises a mixer, a material detection device and the dust purification device, wherein the dust purification device is respectively connected with the mixer and the material detection device. Through setting up above-mentioned dust purification device for this mixing apparatus has above-mentioned dust purification device's whole advantage, need not describe here again.
The dust purification method of the mixing device in the embodiment of the invention is proposed based on the dust purification device or the mixing device, so that the dust purification method has all the advantages of the dust purification device and the mixing device, and further description is omitted.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a dust cleaning apparatus of a mixing device according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a dust cleaning apparatus of a mixing device according to another embodiment of the present invention.
Reference numerals:
1: a feeding mechanism; 101: a protective cover;
2: a mixer; 201: a dust removal port; 202: a discharge port;
3: a discharging mechanism;
4: a material detection device; 401: a material taking mechanism; 402: a discharger; 403: a gas collection conduit; 404: a detector;
5: a dust purification apparatus (may be simply referred to as an apparatus); 501: a dust collection cover; 502: a combustion nozzle; 503: a heating chamber; 504: an air intake duct; 505: a first valve; 506: a second valve; 507: a purifier; 508: an exhaust duct; 509: a return conduit; 510: a first temperature sensor; 511: a second temperature sensor; 512: a hot air regulating valve; 513: a hot air duct;
6: a wall body.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1 and 2, an embodiment of the present invention provides a dust cleaning device 5 (simply referred to as "device" in the embodiment of the present invention) of a mixing apparatus. Based on the device, the embodiment of the invention also provides a mixing device (which is simply referred to as the device in the embodiment of the invention) and a dust purification method of the mixing device (which is simply referred to as the method in the embodiment of the invention). The device is respectively connected with a mixer 2 and a material detection device 4 of the mixing equipment. Compared with the prior art, the device, the equipment and the method have the advantage of environmental protection, the device can realize the high-efficiency, reasonable and comprehensive dust removal and purification effect on the unorganized emission of the mixing equipment, and further reduce or even eliminate the adverse effect of the dusty gas emitted by the mixing equipment on the environment of a factory.
Specifically, as shown in fig. 1, the dust purification apparatus 5 includes a purifier 507, an intake duct 504, and an exhaust duct 508. The purifier 507 can remove dust and purify the dust-containing gas. One end of the air inlet pipe 504 is connected to the inside of the purifier 507 in an openable manner, the other end of the air inlet pipe 504 is communicated with the dust removal port 201 of the mixer 2 through the dust collection cover 501, and the dust collection cover 501 is communicated with the air outlet of the material detection device 4. The dust hood 501 can collect the gas discharged from the mixer 2 and the material detection device 4 into the dust hood 501, so that the collected gas flows into the air inlet pipe 504. The material detection device 4 can collect real-time material mixing effect data so as to feed back and adjust the operation parameters of the mixer 2. The exhaust pipe 508 communicates with the purifier 507, thereby discharging the purified gas to the outside of the apparatus. The inside of clarifier 507 is equipped with negative pressure and produces the mechanism, and negative pressure produces the mechanism and can produce the negative pressure in clarifier 507 to make the interior negative pressure environment that forms of inlet channel 504, inlet channel 504 utilizes the negative pressure effect to extract the gas that blendor 2 and material detection device 4 discharged respectively to collect gas in dust cage 501, in order to make gas more concentrated get into inlet channel 504, improve gas purification efficiency and the comprehensive nature of gas purification.
Further, the air inlet pipe 504 of the device 5 is provided with a heating assembly, and the gas collected and flowing through the air inlet pipe is heated by the heating assembly, so that the heated gas can be subjected to more sufficient and efficient dust removal and purification treatment after entering the purifier 507, and the reasonable and efficient dust removal and purification effect on the unorganized emission of the mixing equipment is improved.
In order to prevent the gas heating temperature from exceeding the upper temperature-resistant limit of the device 5 and causing the device 5 and the equipment to be burnt, the structure of the heating assembly is explained through the following two specific embodiments, so that the working mode of the heating assembly is effectively controlled, the temperature for heating the dust-containing air can be effectively ensured to be kept in a required range, and the dust purification device 5 is prevented from being damaged due to overhigh temperature. For example, as shown in fig. 1, the heating unit includes a combustion chamber 503 and a combustion nozzle 502, the combustion chamber 503 is communicated with an air inlet duct 504, and the combustion nozzle 502 is installed in the combustion chamber 503. The combustion nozzle 502 can heat the gas introduced into the combustion chamber 503 to raise the temperature of the gas in the intake duct 504 in the combustion chamber 503. In addition, another structure of the heating assembly is provided in the embodiment of the present invention, for example, as shown in fig. 2, the heating assembly includes a hot air duct 513 and a hot air adjusting valve 512, the hot air duct 513 is communicated to the air inlet duct 504, and the hot air adjusting valve 512 is installed in the hot air duct 513. The hot air duct 513 can introduce high temperature gas (i.e., hot air) into the air intake duct 504 to mix with the dust-laden gas, thereby causing the temperature of the gas in the air intake duct 504 to increase. The hot air regulating valve 512 can change the amount of hot air mixed into the gas by changing the flow of hot air in the hot air duct 513, thereby regulating and controlling the temperature of the gas in the gas inlet duct 504. The hot air source can be hot air generated by equipment such as a sintering machine, a circular cooler or a chain grate machine.
It should be noted that the embodiment of the present invention provides specific structures of the two heating assemblies, but the heating assemblies may be configured in other structures as long as the gas in the gas inlet pipe 504 can be heated to raise the temperature of the gas.
It will be appreciated that the connection between the inlet conduit 504 and the outlet conduit 508 is openable. The connection between the inlet pipe 504 and the outlet pipe 508 is in a closed state, which can drive the gas in the inlet pipe 504 to flow into the purifier 507 first and discharge the purified gas through the outlet pipe 508; correspondingly, the connection between the inlet duct 504 and the exhaust duct 508 is in a communication state, so that the gas in the inlet duct 504 can be driven to avoid the purifier 507 and be directly discharged through the exhaust duct 508, and the gas in the inlet duct 504 can be subjected to evacuation treatment before and after the device 5 is operated, so that the gas flow efficiency in the inlet duct 504 is promoted, and the safety of the gas collection and temperature rise treatment performed by the inlet duct 504 can be improved.
It will be appreciated that the output end of the exhaust conduit 508 of the apparatus 5 is preferably disposed outside the wall 6 of the plant area so as to enable the venting of gases outside the plant area to minimize the effects of the vented gases on the environment within the plant area.
In one embodiment, the device 5 further comprises a first conduit and a second conduit, as shown in fig. 1. One end of the air inlet pipe 504 is communicated to the purifier 507 through a second pipe, one end of the first pipe is communicated with the joint between the air inlet pipe 504 and the second pipe, and the other end of the first pipe is communicated with the exhaust pipe 508. That is, the first end of the inlet pipe 504 is communicated with the gas collecting hood, the second end of the inlet pipe is respectively communicated with two branch pipes, the two branch pipes are the first pipe and the second pipe, the first pipe can introduce the gas in the inlet pipe 504 into the exhaust pipe 508 in the open state, and the second pipe can introduce the gas in the inlet pipe 504 into the purifier 507 in the open state.
It will be appreciated that valves, such as the first valve 505 and the second valve 506 shown in fig. 1, are installed in the first pipeline and the second pipeline, respectively, and can control the opening and closing of the pipelines. A first valve 505 is installed in the first pipe and a second valve 506 is installed in the second pipe.
In one embodiment, the device 5 further comprises an exhaust port, a first port and a second port. The exhaust port penetrates the top of the purifier 507 and communicates with the exhaust duct 508 to discharge the gas in the purifier 507 into the exhaust duct 508 through the exhaust port. The first port and the second port are respectively penetrated through the side surface of the purifier 507, and the second port is positioned below the first port. The first pipeline is communicated with the first port, and the second pipeline is communicated with the second port. The first conduit is in communication to direct the gas in the inlet conduit 504 to an upper position within the scrubber 507 via an indirect route and through the top of the scrubber 507 to the outlet conduit 508 via an outlet. The second conduit can introduce the gas in the gas inlet conduit 504 to a position lower in the purifier 507 in a communicated state. The arrangement of the structure enables the gas entering the purifier 507 through the first pipeline and the second pipeline to be distinguished in the inner cavity of the purifier 507, so that only the purification mechanism in the purifier 507 needs to be reasonably arranged, for example, the purification mechanism is arranged in the middle of the purifier 507, the gas can pass through the purification mechanism from bottom to top in the purifier 507 to be subjected to dust removal and purification, and the filtered dust can fall to the bottom of the purifier 507 under the action of self weight.
Preferably, an ash bucket is installed at the bottom of the purifier 507, and the ash bucket can catch dust particles falling after filtration. The ash hopper is communicated into the mixer 2 of the mixing device through a return pipe 509 so as to send the dust particles back into the mixer 2 for recycling.
In order to rationally plan the connection structure between the first duct and the exhaust duct 508, as shown in fig. 2, the first port preferably penetrates the exhaust duct 508, that is, the gas in the first duct can directly enter the exhaust duct 508 from the first port, so that the gas flow efficiency is increased, the number of penetrating ports in the purifier 507 is reduced, and the airtightness of the purifier 507 is improved.
It can be understood that the first and second conduits are each fitted with a temperature sensor therein. For example, a first temperature sensor 510 is installed in the first pipeline, a second temperature sensor 511 is installed in the second pipeline, and the first temperature sensor 510 and the second temperature sensor 511 can monitor the gas temperatures in the first pipeline and the second pipeline respectively, so that when the gas temperatures reach a preset temperature, the on-off states of the first pipeline and the second pipeline can be changed as required to change the operation state of the device 5.
Based on the device 5, the embodiment of the invention also provides a mixing device. The equipment comprises a mixer 2, a material detection device 4 and a dust purification device 5. Specifically, a dust purification device 5 of the mixing device is shown in fig. 1 or fig. 2, and the dust purification device 5 is connected to the mixer 2 and the material detection device 4, respectively. The specific structure and effect of the dust purification apparatus 5 will not be described in detail herein.
In one embodiment, a feed inlet and a dust removing port 201 are respectively arranged on two sides of the top of the mixer 2, the feed inlet is connected with the feeding mechanism 1, the feed inlet is covered with a protective cover 101, and the dust removing port 201 is communicated with a dust collecting cover 501 of the dust purifying device 5. The feed port and the dust removal port 201 are separately arranged, so that the dust removal port 201 can avoid the falling material of the feed port as far as possible, and the strong airflow generated in the dust removal purification process can be prevented from winding the falling material of the feed port into the dust purification device 5. The dust collecting cover 501 can collect the gas, and can protect the dust removing opening 201 to prevent the dust-containing gas from leaking. The protective cover 101 can protect the feed inlet and prevent materials from spilling in the feeding process. In addition, enough space is left between the feeding hole and the dust removal hole 201, so that negative pressure environment can be formed in the mixer 2 under the action of negative pressure generated by the purifier 507, and dust generated in the feeding process is effectively prevented from escaping from gaps of the protective cover 101.
Preferably, the feeding mechanism 1 is a feeding belt. The protective cover 101 is a belt cover.
In an embodiment, the top of the mixer 2 is further provided with a material returning port, the material returning port is communicated into the purifier 507 of the dust purification device 5 through a material returning pipeline 509, and the dust filtered out from the purifier 507 can be fed back into the mixer 2 as a material through the material returning pipeline 509, so that the effect of recycling is achieved.
In one embodiment, the bottom of the mixer 2 is provided with a discharge port 202, and the discharge port 202 is communicated with the discharge mechanism 3. After the materials are fully mixed in the mixer 2, the mixture is discharged to the discharging mechanism 3 through the discharging port 202. The material detecting device 4 includes a material taking mechanism 401, a detector 404, and a discharger 402. The material taking mechanism 401 is connected between the discharge port 202 of the mixer 2 and the detector 404, so that the sample extracted from the mix discharged from the mixer 2 is sent to the detector 404 for detection. The detector 404 is preferably a material mixture uniformity detector 404, and other detectors 404 may be used as desired. Since the sample generates dust in the detector 404, the discharger 402 is used for discharging the dust in the sample through gas, i.e. gas-solid separation of the sample is realized, the material particles are discharged to the discharging mechanism, and the residual fine dust is collected into the dust purification device 5 through the gas flow.
Preferably, the discharger 402 is provided with an inlet, a discharge outlet and an exhaust port. A detector 404 is coupled to an inlet of the discharger 402 to deliver a detected sample into the discharger 402. The exhaust port of the discharger 402 is communicated to the inside of the gas collecting hood of the dust purification apparatus 5 through the gas collecting pipe 403, so that the discharged dust-containing gas is collected into the gas collecting hood of the dust purification apparatus 5. The discharge port of the discharger 402 is communicated with the discharging mechanism 3.
Preferably, the discharging mechanism 3 is a discharging belt, and the discharging belt is laid below the discharging port 202 of the mixer and the discharging port of the discharger 402. It is further preferred that the discharging mechanism 3 is a two-layer discharging belt, as shown in fig. 1, a first layer of discharging belt is laid below the discharging port 202 of the mixer, and a second layer of discharging belt is laid below the discharging port of the discharger 402.
The embodiment of the invention also provides a dust purification method of the mixing equipment. The method is proposed based on the dust purification device 5 or the mixing device, so that the method has all the advantages of the dust purification device 5 and the mixing device, and is not described herein again.
Specifically, the dust purification method comprises the following steps:
firstly, the air inlet pipe 504 and the air outlet pipe 508 are communicated, and the negative pressure generating mechanism in the purifier 507 and the heating component in the air inlet pipe 504 are respectively driven to operate, so that the temperature of the gas collected in the dust collection cover 501 is gradually increased in the process that the gas flows through the air inlet pipe 504, and the heated gas is discharged through the air outlet pipe 508, thereby completing the gas heating and emptying functions of the air inlet pipe 504, and ensuring the efficiency and safety of the subsequent gas purification process.
Next, after the temperature of the gas rises to the preset temperature, the air inlet pipe 504 and the air outlet pipe 508 are disconnected, and the air inlet pipe 504 and the purifier 507 are communicated, so that the gas respectively discharged by the mixer 2 and the material detection device 4 is collected in the dust collection cover 501 under the negative pressure, the heated gas flowing through the air inlet pipe 504 enters the purifier 507 under the negative pressure to be purified, and the purified gas is discharged through the air outlet pipe 508.
In the method according to the embodiment of the present invention, before purifying the gas in the purifier 507, the gas needs to be heated, and the purpose of the method is as follows: in the mixing apparatus, the dust generated by the mixer 2 and the material detection device 4 is mainly bentonite and contains moisture, and the moisture condenses to make the bentonite easily adhere to the dust purification device 5, so as to block the purification mechanism (such as the purification filter element) in the purifier 507 and make the dust purification device 5 lose efficacy. The heating assembly is arranged in the air inlet pipe 504, so that the dust-containing and moisture-containing gas can be preheated to a preset temperature of 100-260 ℃ in advance, the temperature of the gas is raised to exceed the temperature of water condensation, dust in the air flow is trapped when water vapor and air pass through the purification filter element, the bentonite loses condensed water and does not have adhesion, and the bentonite can fall back into the ash hopper at the bottom of the purifier 507 after being subjected to back flushing.
Preferably, the preset temperature of the gas is 105 to 180 ℃, and the optimal preset temperature is 108 to 120 ℃.
The above embodiments are merely illustrative of the present invention and are not to be construed as limiting the invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the technical solution of the present invention is covered by the claims of the present invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Claims (10)
1. The utility model provides a mixing apparatus's dust purification device for be connected with blendor and material detection device respectively, its characterized in that includes:
a negative pressure generating mechanism is arranged in the purifier;
the air inlet pipeline is connected into the purifier in an openable and closable manner, the other end of the air inlet pipeline is communicated with a dust removal port of the mixer through a dust collection cover, the dust collection cover is communicated with an air outlet of the material detection device, and a heating assembly is mounted on the air inlet pipeline;
and the exhaust pipeline is communicated with the purifier, and the air inlet pipeline is connected with the exhaust pipeline in an openable and closable manner.
2. The dust purification device according to claim 1, further comprising a first duct and a second duct, wherein one end of the air inlet duct communicates with the interior of the purifier through the second duct, one end of the first duct communicates with a joint between the air inlet duct and the second duct, and the other end of the first duct communicates with the exhaust duct; and valves are respectively arranged in the first pipeline and the second pipeline.
3. The dust purification apparatus of claim 2, further comprising an exhaust port, a first port and a second port, wherein the exhaust port penetrates the top of the purifier, the first port and the second port penetrate the side of the purifier respectively, the second port is located below the first port, the exhaust duct communicates with the exhaust port, the first duct communicates with the first port, and the second duct communicates with the second port.
4. The dust cleaning apparatus according to claim 3, wherein the first port penetrates the exhaust duct.
5. The dust cleaning apparatus according to claim 3 or 4, wherein a temperature sensor is installed in each of the first duct and the second duct.
6. The dust purification apparatus of any one of claims 1 to 4, wherein the heating assembly comprises a combustion chamber and a combustion nozzle, the combustion chamber is communicated with the air inlet duct, and the combustion nozzle is installed in the combustion chamber.
7. The dust purifying apparatus according to any one of claims 1 to 4, wherein the heating assembly comprises a hot air duct communicating with the air inlet duct and a hot air regulating valve installed in the hot air duct.
8. A mixing apparatus comprising a mixer, a material detection device, and the dust purification device of any one of claims 1 to 7, the dust purification device being connected to the mixer and the material detection device, respectively.
9. The mixing device according to claim 8, wherein a feed inlet and a dust removal port are respectively arranged on two sides of the top of the mixer, the feed inlet is connected with a feeding mechanism, a protective cover is arranged outside the feed inlet, and the dust removal port is communicated with a dust collection cover of the dust purification device;
the top of the mixer is also provided with a feed back port, the bottom of the mixer is provided with a discharge port, the feed back port is communicated to the interior of the purifier of the dust purification device through a feed back pipeline, and the discharge port is communicated with a discharge mechanism;
the material detection device comprises a material taking mechanism, a detector and a discharger, wherein the material taking mechanism is connected between a discharge port of the mixer and the detector, an inlet, a discharge port and an exhaust port are respectively arranged on the discharger, the detector is connected with the inlet of the discharger, the exhaust port of the discharger is communicated into a gas collecting hood of the dust purification device through a gas collecting pipeline, and the discharge port of the discharger is communicated with the discharge mechanism.
10. A dust cleaning method of a mixing device, characterized in that, based on the dust cleaning apparatus of any one of claims 1 to 8 or the mixing device of claim 9, the dust cleaning method comprises:
communicating an air inlet pipeline and an exhaust pipeline, and respectively driving a negative pressure generating mechanism in a purifier and a heating assembly in the air inlet pipeline to operate so as to gradually heat up the gas collected in a dust collection cover in the process that the gas flows through the air inlet pipeline, and discharging the heated gas through the exhaust pipeline;
and the temperature of the gas is raised to a preset temperature, the gas inlet pipeline and the gas exhaust pipeline are disconnected, and the gas inlet pipeline and the purifier are communicated, so that the gas respectively discharged by the mixer and the material detection device is collected in the dust collection cover under the negative pressure effect, the gas after temperature rise flowing through the gas inlet pipeline enters the purifier under the negative pressure effect to be purified, and the purified gas is discharged through the gas exhaust pipeline.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09327613A (en) * | 1996-06-11 | 1997-12-22 | Nippon Spindle Mfg Co Ltd | Exhaust gas treatment method for kneader and apparatus thereof |
| JP2009156509A (en) * | 2007-12-26 | 2009-07-16 | Earth Technica:Kk | Rotary blade type stirring device and material drying method by rotary blade type stirring device |
| CN203170266U (en) * | 2013-03-15 | 2013-09-04 | 宝山钢铁股份有限公司 | Dust removal system for sintering mixing machine |
| CN203565025U (en) * | 2013-07-30 | 2014-04-30 | 宝山钢铁股份有限公司 | Sieve-mesh sprayed hot air type sintering mixer machine dust collector |
| CN204208508U (en) * | 2014-10-29 | 2015-03-18 | 玉门油田科达化学有限责任公司 | A kind of dedusting blender |
| CN107774192A (en) * | 2016-08-29 | 2018-03-09 | 中冶长天国际工程有限责任公司 | Intelligent evenly mixing device and its mixing method |
| CN207893312U (en) * | 2017-10-31 | 2018-09-21 | 苏州市木易船舶设备有限公司 | Marine GRP pipeline |
| CN212369755U (en) * | 2020-07-16 | 2021-01-19 | 中冶长天国际工程有限责任公司 | Dust purification device of mixing equipment and mixing equipment |
-
2020
- 2020-07-16 CN CN202010688574.8A patent/CN111729417B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09327613A (en) * | 1996-06-11 | 1997-12-22 | Nippon Spindle Mfg Co Ltd | Exhaust gas treatment method for kneader and apparatus thereof |
| JP2009156509A (en) * | 2007-12-26 | 2009-07-16 | Earth Technica:Kk | Rotary blade type stirring device and material drying method by rotary blade type stirring device |
| CN203170266U (en) * | 2013-03-15 | 2013-09-04 | 宝山钢铁股份有限公司 | Dust removal system for sintering mixing machine |
| CN203565025U (en) * | 2013-07-30 | 2014-04-30 | 宝山钢铁股份有限公司 | Sieve-mesh sprayed hot air type sintering mixer machine dust collector |
| CN204208508U (en) * | 2014-10-29 | 2015-03-18 | 玉门油田科达化学有限责任公司 | A kind of dedusting blender |
| CN107774192A (en) * | 2016-08-29 | 2018-03-09 | 中冶长天国际工程有限责任公司 | Intelligent evenly mixing device and its mixing method |
| CN207893312U (en) * | 2017-10-31 | 2018-09-21 | 苏州市木易船舶设备有限公司 | Marine GRP pipeline |
| CN212369755U (en) * | 2020-07-16 | 2021-01-19 | 中冶长天国际工程有限责任公司 | Dust purification device of mixing equipment and mixing equipment |
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| CN111729417B (en) | 2024-04-23 |
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