CN208642068U - For urea high-tower granulation low emission recyclable device - Google Patents
For urea high-tower granulation low emission recyclable device Download PDFInfo
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- CN208642068U CN208642068U CN201820641368.XU CN201820641368U CN208642068U CN 208642068 U CN208642068 U CN 208642068U CN 201820641368 U CN201820641368 U CN 201820641368U CN 208642068 U CN208642068 U CN 208642068U
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- Prior art keywords
- cloth bag
- urea
- shell
- air
- tower
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- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 171
- 239000004202 carbamide Substances 0.000 title claims abstract description 87
- 238000005469 granulation Methods 0.000 title claims abstract description 27
- 230000003179 granulation Effects 0.000 title claims abstract description 27
- 235000013877 carbamide Nutrition 0.000 claims abstract description 85
- 239000004744 fabric Substances 0.000 claims abstract description 69
- 239000000428 dust Substances 0.000 claims abstract description 53
- 238000004891 communication Methods 0.000 claims abstract description 17
- 238000000926 separation method Methods 0.000 claims abstract description 5
- 238000007664 blowing Methods 0.000 claims description 15
- 230000001939 inductive effect Effects 0.000 claims description 9
- 210000002700 urine Anatomy 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 3
- 238000011084 recovery Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 4
- 230000001681 protective effect Effects 0.000 abstract description 2
- 239000007921 spray Substances 0.000 description 7
- 230000005611 electricity Effects 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 239000010963 304 stainless steel Substances 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002463 transducing effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
One kind being used for urea high-tower granulation low emission recyclable device, shell including being mounted on carbamide granulation top of tower, it is provided with urea tail gas inlet port in the lower part of the housing, it is provided with exhaust port in the upper housing, exhaust port is connected with getter device, be provided in housing cavity can by housing cavity sealed separation be upper cavity and lower chamber demarcation plate, upper cavity is connected with exhaust port, lower chamber is connected with urea tail gas inlet port, the communication port of connection upper cavity and lower chamber is distributed on demarcation plate, cloth bag is respectively arranged in communication port, the opening of cloth bag is connected with upper cavity, the recoiling device that gas can be blown into from cloth bag opening and the carbamide dust being attached on cloth bag outer surface can be blown off is respectively arranged in the housing cavity for being located at cloth bag overthe openings, collection carbamide dust is provided with below cloth bag Aggregate bin, recoiling device is connected with control circuit.The advantage is that: dust recovery rate is high, environmentally protective, using effect is good.
Description
Technical field
The utility model relates to a kind of device for recovering powder manufacture technology fields, especially a kind of to be used for urea high-tower granulation
Low emission recyclable device.
Background technique
Application No. is the Chinese practical new of CN201220523238.9 entitled " urea dust recovery device " for existing one kind
Type patent discloses a kind of urea dust recovery device, including shell and collecting tank, and the shell upper end is provided with gas outlet, institute
It states shell lower end and is provided with air inlet, be disposed with the first spray equipment and the second spray dress in the shell from bottom to up
Set, it is characterised in that: the urea dust recovery device further includes having third spray equipment, be located at second spray equipment and
The moisture in ascending air can be carried out to absorb and to the water collection device that dust is filtered, institute by being provided between third spray equipment
The underface that collecting tank is located at air inlet is stated, the collecting tank is connected by pipeline and circulating slot.Its advantage is to increase
Three spray equipments can preferably dissolve and absorb dust, and the apparatus structure is simple, easy to operate.However, the spray liquid of the device
Recovery processing is inconvenient, and direct emission is easy pollution environment, and treatment effeciency is lower, therefore the structure of the device need to also be into one
Step is improved.
Summary of the invention
Technical problem to be solved in the utility model is provided a kind of for urea for above-mentioned state of the art
High-tower granulation low emission recyclable device, the present apparatus have structure simple, high treating effect, the high advantage of dust recovery efficiency.
Technical solution adopted by the utility model to solve the above technical problems is as follows: this is used for the low emission of urea high-tower granulation
Recyclable device, the shell including being mounted on carbamide granulation top of tower are provided with and the urea in urea prilling tower in the lower part of the housing
The urea tail gas inlet port that tail gas outlet is connected, is provided with the tail gas after dust is absorbed in urea tail gas in the upper housing
Discharge outlet, the exhaust port are connected with the getter device that housing cavity can be made to form negative pressure, it is characterised in that: in shell
Be provided in inner cavity can be by housing cavity sealed separation upper cavity and lower chamber demarcation plate, the upper cavity and exhaust emissions
Mouth is connected, and the lower chamber is connected with urea tail gas inlet port, and connection upper cavity and lower chamber are distributed on demarcation plate
Communication port, be respectively arranged in the communication port can filter urea dust cloth bag, opening and the upper cavity phase of the cloth bag
Connection, being respectively arranged in the housing cavity for being located at cloth bag overthe openings can be blown into from cloth bag opening by gas and can will adhere to
The recoiling device that carbamide dust on cloth bag outer surface is blown off is provided with what collection was blown off from cloth bag below the cloth bag
The aggregate bin of carbamide dust, the recoiling device are connected with control circuit.
As an improvement, the recoiling device includes air blower, blowing line and control valve, the blowing line and air blast
Machine is connected, and the blowing line passes through shell and mutually fixes with shell, protrudes on the blowing line in housing cavity and is provided with
Air outlet, the opening in communication of the air outlet and cloth bag, the control valve are arranged on air outlet, the control valve with
Control circuit is connected.
It is further improved, the demarcation plate is preferably the cross support frame in setting on the inner wall of the housing, the connection
Mouth is inner walls and the top opening for being connected to chamber that cross support frame is formed, and the cloth bag is seamlessly connected and is arranged closely in
In top opening.
It is further improved, for the cloth bag preferably with 10 for one group, air outlet corresponding with one group of cloth bag passes through one
Control is opened and closed in a control valve.
It is further improved, is preferably provided with no less than 1000 cloth bags in a connection chamber, therefore control valve is total
Number no less than 400.
Be further improved, the getter device includes air-introduced machine and air inducing pipeline, the air-introduced machine by air inducing pipeline with
Housing cavity above blowing line is connected.
It is further improved, the air-introduced machine is preferably 4, and 4 air-introduced machines are arranged at intervals on outside and the difference of shell
It is connected with corresponding air inducing pipeline, 4 communication ports is provided on the demarcation plate, 4 air-introduced machines is located at corresponding company
Port is connected.
As an improvement, transitional shell is preferably provided between shell and carbamide granulation top of tower, the transitional shell
Top be connected with the shell, be connected at the top of the urea tail gas inlet port and transitional shell, the bottom of the transitional shell
Portion is connected with carbamide granulation top of tower, and the urea tail gas outlet is connected with the bottom of transitional shell, the aggregate bin
It is arranged in the inner cavity of transitional shell.
It is further improved, the lower part of the cloth bag preferably stretches in the inner cavity of transitional shell, the bottom of the aggregate bin
Portion is connected by pipeline with the collecting box being located in transitional shell.
As an improvement, be preferably provided with dust content detector on the exhaust outlet, the dust content detector with
Control circuit is connected, when dust content is greater than 10mg/m in discharge outlet3When, the getter device stops working.
Compared with prior art, the utility model use be provided in housing cavity can by housing cavity sealed separation for
The demarcation plate of upper cavity and lower chamber, the upper cavity are connected with exhaust port, and the lower chamber and urea tail gas enter
Mouth is connected, and the communication port of connection upper cavity and lower chamber is distributed on demarcation plate, is respectively arranged with energy in the communication port
The opening of the cloth bag of filter urea dust, the cloth bag is connected with upper cavity, in the housing cavity for being located at cloth bag overthe openings
In be respectively arranged with and can gas is blown into and can be blown off the carbamide dust being attached on cloth bag outer surface anti-from cloth bag opening
Flushing device, is provided with the aggregate bin of carbamide dust collected and blown off from cloth bag below the cloth bag, the recoiling device with
The advantages of control circuit is connected, this structure is: the carbamide dust left from shell need to first pass through cloth bag, and cloth bag can be effective
Dust is adsorbed, dust recovery rate can reach 98%, and the dust content discharged in gas is less than 5mg/m3, really realize pollution-free
Discharge, environmentally protective, using effect is good；The dust being adsorbed on cloth bag can be blown off by recoiling device to be collected into aggregate bin, real
The recycling of existing carbamide dust helps to reduce urea production cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment；
Fig. 2 is that top view of the partial shell to show cloth bag is removed in Fig. 1；
Fig. 3 is the structural schematic diagram that air-introduced machine Yu shell position relationship are shown in Fig. 1.
Specific embodiment
The utility model is described in further detail below in conjunction with figure embodiment.
As shown in Figure 1 to Figure 3, the present embodiment is used for urea high-tower granulation low emission recyclable device, including is mounted on urine
Shell 1 at the top of plain granulation tower is provided with the urine being connected with the urea tail gas outlet in urea prilling tower in 1 lower part of shell
Plain tail gas inlet port is provided with the exhaust port after dust is absorbed in urea tail gas, the exhaust emissions on 1 top of shell
Mouth is connected with the getter device that housing cavity can be made to form negative pressure, it is characterised in that: being provided in housing cavity can be by shell
Intracoelomic cavity sealed separation is the demarcation plate of upper cavity and lower chamber, and the upper cavity is connected with exhaust port, the cavity of resorption
Body is connected with urea tail gas inlet port, and the communication port of connection upper cavity and lower chamber, the connection are distributed on demarcation plate
The cloth bag 3 of energy filter urea dust is respectively arranged on mouth, the opening of the cloth bag 3 is connected with upper cavity, is being located at cloth bag 3
Being respectively arranged in the housing cavity of overthe openings can be blown into from cloth bag opening by gas and can will be attached on cloth bag outer surface
The recoiling device that blows off of carbamide dust, the collection for collecting the carbamide dust blown off from cloth bag 3 is provided with below the cloth bag
Hopper 5, the recoiling device are connected with control circuit.The recoiling device includes air blower 4, blowing line 41 and control valve
Door, the blowing line 41 are connected with air blower 4, and the blowing line 41 passes through shell 1 and fixes with 1 phase of shell, protrude into
Air outlet, the opening in communication of the air outlet and cloth bag 3, the control valve are provided on blowing line 41 in housing cavity
Door is arranged on air outlet, and the control valve is connected with control circuit.The demarcation plate is in setting on the inner wall of the housing
Cross support frame 11, the communication port are the top opening of the connection chamber 12 of inner walls and the formation of cross support frame 11,
The cloth bag 3 is seamlessly connected and is arranged closely in top opening.The cloth bag 3 with 10 for one group, it is opposite with one group of cloth bag 3
Control is opened and closed by a control valve in the air outlet answered.No less than 1000 cloth bags 3 are provided in one connection chamber 12,
Therefore the sum of control valve is no less than 400.The getter device includes air-introduced machine 2 and air inducing pipeline 21, the air-introduced machine 2
It is connected by air inducing pipeline 21 with the housing cavity of 41 top of blowing line.The air-introduced machine 2 is 4, between 4 air-introduced machines 2
It is connected every the outside that shell 1 is arranged in and respectively with corresponding air inducing pipeline 21,4 connections is provided on the demarcation plate
Mouthful, 4 air-introduced machines 2 are located at corresponding communication port and are connected.
Transitional shell 6, the top of the transitional shell 6 and shell 1 are provided between shell 1 and carbamide granulation top of tower
It is connected, the urea tail gas inlet port is connected with the top of transitional shell 6, and the bottom of the transitional shell 6 is made with urea
Grain top of tower is connected, and the urea tail gas outlet is connected with the bottom of transitional shell 6, and the aggregate bin 5 is arranged in mistake
It crosses in the inner cavity of shell 6.The lower part of the cloth bag 3 stretches in the inner cavity of transitional shell 6, and the bottom of the aggregate bin 5 passes through
Pipeline is connected with the collecting box being located in transitional shell 6.Dust content detector, the dust are provided on the exhaust outlet
Content detection instrument is connected with control circuit, when dust content is greater than 10mg/m in discharge outlet3When, the getter device stops work
Make.The control circuit of connection control valve can integrate with the control circuit for connecting dust content detector to be set together or divides
It is not independently arranged, the control circuit for connecting control valve is the common control structure of control valve opening and closing, and connects powder
The control circuit of dust content detector be can receive dust content detector transducing signal and with the preset value in control circuit
Be compared and control getter device closing common control structure, therefore the specific structure of two kinds of above-mentioned control circuits no longer into
Row specifically describes.
Working principle: the urea tail gas come inside from urea prilling tower, entrainment of 120~220mg/m3Carbamide dust, by
Urea tail gas outlet in urea prilling tower enters shell, and due to the effect of getter device, urea tail gas enters through cloth bag
Cloth bag inner cavity, the carbamide dust being mixed in urea tail gas are attached on cloth bag, opening of the urea tail gas by filtering from cloth bag
Shell finally is discharged from exhaust port into upper cavity.
The carbamide dust being attached on cloth bag has the air from air blower about 0.5Mpa pressure, automatic through control valve
Control carries out blowback to the carbamide dust being attached on each cloth bag, and the carbamide dust that blowback is got off drops in aggregate bin,
The carbamide dust of collection enters collecting box through aggregate bin and is recycled, the carbamide dust of recycling can be sold to factory, compound fertilizer do it is compound
Fertilizer uses, and can also re-dissolve in urine slot, be granulated again, produces urea.
The present apparatus uses four 200,000 m3The air-introduced machine of/h, the motor of every air-introduced machine about 160~180kw/h, separately
Outside, there are also control valve electricity consumption, instrument air electricity consumption, air blower electricity consumption, total electricity consumption about 800kw/h.
By taking 19 meters of granulation towers of diameter as an example: about 600~7,000,000 yuan of gross investment.
Installation site: about 4 meters of height, the shell that 14 meters of diameter are processed in carbamide granulation tower top, 19 meters of urea of diameter are made
Grain tower natural ventilation rate is 600,000 m3/ h, the air quantity for increasing air-introduced machine after cloth bag have to gravity-flow ventilation greater than urea prilling tower
Amount, can make not will form positive pressure in tower, not influence urea particle tower exit temperature.Four dust recovery chambers of the present apparatus point, share
Four 200,000 m3The air-introduced machine of/h, about 800,000 m of total blast volume3/ h, air-introduced machine wind pressure about 3000~4000Pa, draught fan impeller 304
Stainless steel.Equipped with cloth bag about 4056 of 133*6 meters of φ, cloth bag has acid and alkali resistance, etch-proof function.Every 10 cloth bags are
One group, every group of cloth bag has the control of control valve, and 416 solenoid valves are housed altogether in shell, using from air blower about
The air of 0.5Mpa pressure, for carrying out blowback to the carbamide dust being attached on each cloth bag.According to calculating: increasing cloth bag and remove
After dirt, dust recovery rate can reach 98%, discharge the dust content < 5mg/m in gas3, really realize pollution-free row
It puts.
Claims (9)
1. one kind is for urea high-tower granulation low emission recyclable device, the shell (1) including being mounted on carbamide granulation top of tower,
Shell (1) lower part is provided with the urea tail gas inlet port being connected with the urea tail gas outlet in urea prilling tower, in shell
(1) top is provided with the exhaust port after dust is absorbed in urea tail gas, the exhaust port and can make housing cavity
The getter device for forming negative pressure is connected, it is characterised in that: being provided in housing cavity can be by housing cavity sealed separation
The demarcation plate of upper cavity and lower chamber, the upper cavity are connected with exhaust port, and the lower chamber and urea tail gas enter
Mouth is connected, and the communication port of connection upper cavity and lower chamber is distributed on demarcation plate, is respectively arranged with energy in the communication port
The opening of the cloth bag (3) of filter urea dust, the cloth bag (3) is connected with upper cavity, is being located at cloth bag (3) overthe openings
Being respectively arranged in housing cavity can be blown into from cloth bag opening by gas and can will be attached to the carbamide dust on cloth bag outer surface
The recoiling device blown off is provided with the aggregate bin (5) for collecting the carbamide dust blown off from cloth bag (3) below the cloth bag,
The recoiling device is connected with control circuit；The recoiling device includes air blower (4), blowing line (41) and control valve
Door, the blowing line (41) is connected with air blower (4), the blowing line (41) across shell (1) and with shell (1) phase
It is fixed, it protrudes on the blowing line in housing cavity (41) and is provided with air outlet, the air outlet is connected with the opening of cloth bag (3)
Logical, the control valve is arranged on air outlet, and the control valve is connected with control circuit.
2. according to claim 1 be used for urea high-tower granulation low emission recyclable device, it is characterised in that: the demarcation plate
For the cross support frame (11) being arranged on the inner wall of the housing, the communication port is inner walls and cross support frame (11) shape
At connection chamber (12) top opening, the cloth bag (3) seamless connection and be arranged closely in top opening.
3. according to claim 2 be used for urea high-tower granulation low emission recyclable device, it is characterised in that: the cloth bag
(3) with 10 for one group, control is opened and closed by a control valve in air outlet corresponding with one group cloth bag (3).
4. according to claim 3 be used for urea high-tower granulation low emission recyclable device, it is characterised in that: a connection chamber
(12) no less than 1000 cloth bags (3) are provided in, therefore the sum of control valve is no less than 400.
5. according to claim 1 be used for urea high-tower granulation low emission recyclable device, it is characterised in that: the air-breathing dress
It sets including air-introduced machine (2) and air inducing pipeline (21), the air-introduced machine (2) passes through air inducing pipeline (21) and blowing line (41) top
Housing cavity be connected.
6. according to claim 5 be used for urea high-tower granulation low emission recyclable device, it is characterised in that: the air-introduced machine
It (2) is 4,4 air-introduced machines (2) are arranged at intervals on the outside of shell (1) and are connected respectively with corresponding air inducing pipeline (21),
4 communication ports are provided on the demarcation plate, 4 air-introduced machines (2) are located at corresponding communication port and are connected.
7. described being used for urea high-tower granulation low emission recyclable device to any in 5 according to claim 1, it is characterised in that:
It is provided between shell (1) and carbamide granulation top of tower transitional shell (6), the top and shell (1) of the transitional shell (6)
It is connected, is connected at the top of the urea tail gas inlet port and transitional shell (6), the bottom of the transitional shell (6) and urine
It is connected at the top of plain granulation tower, the urea tail gas outlet is connected with the bottom of transitional shell (6), the aggregate bin (5)
It is arranged in the inner cavity of transitional shell (6).
8. according to claim 7 be used for urea high-tower granulation low emission recyclable device, it is characterised in that: the cloth bag
(3) lower part stretches in the inner cavity of transitional shell (6), and the bottom of the aggregate bin (5) by pipeline and is located at transitional shell
(6) collecting box in is connected.
9. described being used for urea high-tower granulation low emission recyclable device to any in 5 according to claim 1, it is characterised in that:
Dust content detector is provided on exhaust outlet, the dust content detector is connected with control circuit, when powder in discharge outlet
Dust content is greater than 10mg/m3When, the getter device stops working.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820641368.XU CN208642068U (en) | 2018-05-02 | 2018-05-02 | For urea high-tower granulation low emission recyclable device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820641368.XU CN208642068U (en) | 2018-05-02 | 2018-05-02 | For urea high-tower granulation low emission recyclable device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208642068U true CN208642068U (en) | 2019-03-26 |
Family
ID=65777042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820641368.XU Expired - Fee Related CN208642068U (en) | 2018-05-02 | 2018-05-02 | For urea high-tower granulation low emission recyclable device |
Country Status (1)
| Country | Link |
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| CN (1) | CN208642068U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110404350A (en) * | 2019-08-29 | 2019-11-05 | 上海境业环保能源科技股份有限公司 | A kind of dust pelletizing system of urea prilling tower |
| CN110465144A (en) * | 2019-08-29 | 2019-11-19 | 上海境业环保能源科技股份有限公司 | A kind of dust pelletizing system of the urea prilling tower of tower top side wall installation blower unit |
| CN110465145A (en) * | 2019-08-29 | 2019-11-19 | 上海境业环保能源科技股份有限公司 | A kind of dust pelletizing system of urea prilling tower |
| CN113685731A (en) * | 2020-05-19 | 2021-11-23 | 宝山钢铁股份有限公司 | Gas distribution device with dust removal function and use method thereof |
-
2018
- 2018-05-02 CN CN201820641368.XU patent/CN208642068U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110404350A (en) * | 2019-08-29 | 2019-11-05 | 上海境业环保能源科技股份有限公司 | A kind of dust pelletizing system of urea prilling tower |
| CN110465144A (en) * | 2019-08-29 | 2019-11-19 | 上海境业环保能源科技股份有限公司 | A kind of dust pelletizing system of the urea prilling tower of tower top side wall installation blower unit |
| CN110465145A (en) * | 2019-08-29 | 2019-11-19 | 上海境业环保能源科技股份有限公司 | A kind of dust pelletizing system of urea prilling tower |
| CN113685731A (en) * | 2020-05-19 | 2021-11-23 | 宝山钢铁股份有限公司 | Gas distribution device with dust removal function and use method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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Granted publication date: 20190326 |