CN218107056U - Material heating mechanism for preparing concrete additive - Google Patents
Material heating mechanism for preparing concrete additive Download PDFInfo
- Publication number
- CN218107056U CN218107056U CN202221946822.5U CN202221946822U CN218107056U CN 218107056 U CN218107056 U CN 218107056U CN 202221946822 U CN202221946822 U CN 202221946822U CN 218107056 U CN218107056 U CN 218107056U
- Authority
- CN
- China
- Prior art keywords
- connecting pipe
- air
- pipe
- dehumidifier
- heating mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Drying Of Solid Materials (AREA)
Abstract
The utility model discloses a material heating mechanism is used in concrete additive preparation, including air heater and dehumidifier, air heater inlet end through connection has the intake pipe, and intake pipe other end through connection has the forced draught blower to forced draught blower inlet end through connection has first connecting pipe, the first connecting pipe other end and dehumidifier one end through connection, and the dehumidifier other end through connection has the second connecting pipe to second connecting pipe other end through connection has air cleaner, air cleaner's inlet end through connection has the third connecting pipe. Has the advantages that: the utility model discloses a dehumidifier, molecular sieve, breathing pipe and fourth connecting pipe, this device recycle the tail gas waste heat, have reduced air heater's work energy consumption, environmental protection and energy saving more, simultaneously, through the continuous dehumidification of molecular sieve, improved the evaporation efficiency to the moisture in the polycarboxylic acid mother liquor to the preparation efficiency of polycarboxylic acid powder has been improved.
Description
Technical Field
The utility model relates to a concrete additive preparation technical field particularly, relates to material heating mechanism is used in concrete additive preparation.
Background
The concrete additive is called additive for short, and is a substance for improving the performance of concrete, the most commonly used concrete additive is a concrete water reducing agent, the most commonly used concrete water reducing agent comprises polycarboxylic acid powder, in the preparation process of the polycarboxylic acid powder, the polycarboxylic acid mother liquor needs to be introduced into a drying tower, the atomized polycarboxylic acid mother liquor is quickly evaporated by hot air to form powder, an air heater is adopted to heat air in the process, the air heater directly heats the outside air, the temperature of the outside air is lower, the energy consumption is higher when the outside air is directly heated, energy conservation and environmental protection are not enough, high-temperature smoke generated in the preparation process of the polycarboxylic acid powder is directly discharged after being subjected to dust removal treatment by a bag type dust remover, the reasonable utilization of residual temperature cannot be realized, the improvement can be further realized, meanwhile, the steam contained in the outside air also influences the evaporation drying of the atomized polycarboxylic acid mother liquor, the preparation efficiency is influenced, and the improvement can be further realized.
An effective solution to the problems in the related art has not been proposed yet.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Not enough to prior art, the utility model provides a material heating mechanism is used in concrete additive preparation possesses the advantage that has improved preparation efficiency, and then solves the problem in the above-mentioned background art.
(II) technical scheme
For realizing the above-mentioned advantage that has improved preparation efficiency, the utility model discloses a specific technical scheme as follows:
the material heating mechanism for preparing the concrete additive comprises an air heater and a dehumidifier, wherein an air inlet pipe is connected to the air inlet end of the air heater in a penetrating manner, a blower is connected to the other end of the air inlet pipe in a penetrating manner, a first connecting pipe is connected to the air inlet end of the blower in a penetrating manner, the other end of the first connecting pipe is connected to one end of the dehumidifier in a penetrating manner, a second connecting pipe is connected to the other end of the dehumidifier in a penetrating manner, an air filter is connected to the other end of the second connecting pipe in a penetrating manner, a third connecting pipe is connected to the air inlet end of the air filter in a penetrating manner, a draught fan is connected to the other end of the third connecting pipe in a penetrating manner, and a fourth connecting pipe is connected to the air inlet end of the draught fan in a penetrating manner, the surface of the fourth connecting pipe is connected with an air suction pipe in a penetrating manner, the other end of the fourth connecting pipe is connected with an exhaust end of the bag type dust collector, an air outlet end of the air heater is connected with an air outlet pipe in a penetrating manner, the air outlet pipe is connected with an air inlet end of the drying tower, the surface of the air outlet end is connected with a fifth connecting pipe in a penetrating manner, the other end of the fifth connecting pipe is connected with the other end of the dehumidifier in a penetrating manner, pore plates are fixedly arranged inside the dehumidifier, molecular sieves are filled between the pore plates, the surface of the air outlet pipe is located at the downstream of the fifth connecting pipe and provided with a fourth electromagnetic valve, the surface of the fifth connecting pipe is provided with a third electromagnetic valve, the surface of the air suction pipe is provided with a second electromagnetic valve, and the surface of the second connecting pipe is provided with a sixth electromagnetic valve.
Furthermore, one end of the dehumidifier is connected with an exhaust pipe in a through manner, a first electromagnetic valve is arranged on the surface of the exhaust pipe, a sixth connecting pipe is connected between the second connecting pipe and the first connecting pipe in a through manner, and a fifth electromagnetic valve is arranged on the surface of the sixth connecting pipe.
Furthermore, a one-way valve is installed on the surface of the first connecting pipe, and the ventilation direction of the one-way valve is the direction of air flowing into the air supply fan.
Furthermore, the surface of the pore plate is provided with air holes which are densely arranged, and the aperture of the air holes is smaller than the particle size of the molecular sieve.
Furthermore, the other end of the air inlet pipe is communicated with the air outlet end of the air feeder.
Furthermore, the other end of the third connecting pipe is in through connection with the air outlet end of the induced draft fan.
Furthermore, the other end of the second connecting pipe is communicated with the air outlet end of the air filter.
Furthermore, the dehumidifier is of a cylindrical structure, and the dehumidifier is of a sealing structure.
(III) advantageous effects
Compared with the prior art, the utility model provides a material heating mechanism is used in concrete additive preparation possesses following beneficial effect:
(1) The utility model discloses a dehumidifier, molecular sieve, breathing pipe and fourth connecting pipe, in the in-process that carries out the preparation of polycarboxylic acid powder, air heater, forced draught blower and draught fan are opened, the second solenoid valve is opened, the outside air enters into the fourth connecting pipe from the breathing pipe, enter into air cleaner through the draught fan, enter into in the dehumidifier after air cleaner's filtration, moisture in the air enters into the forced draught blower after molecular sieve adsorbs, enter into in the polycarboxylic acid powder drying tower after air heater's heating, contact with the polycarboxylic acid mother liquor after the atomizing, the moisture in the polycarboxylic acid mother liquor after the atomizing is evaporated fast to the high temperature air, form the powder, after cyclone shunt unit reposition of redundant personnel, tail gas enters into the fourth connecting pipe through the backward flow of molecular sieve dust remover, tail gas has certain waste heat after the dust removal, continue to flow and enter into in the molecular sieve, tail gas gets into the polycarboxylic acid powder drying tower again through air heater secondary heating after the dehumidification bag formula dust removal and participates in the drying, this device recycles the waste heat energy consumption of tail gas, environmental protection and energy saving heater more, and energy saving, simultaneously, the dehumidification efficiency of polycarboxylic acid mother liquor through the molecular sieve has improved the preparation of polycarboxylic acid mother liquor, thereby the evaporation efficiency of the evaporation of the polycarboxylic acid is improved.
(2) The utility model discloses a fifth connecting pipe, blast pipe and sixth connecting pipe, after the molecular sieve saturation, the second solenoid valve can be opened to the staff, first solenoid valve, third solenoid valve and fifth solenoid valve, close fourth solenoid valve and sixth solenoid valve, start air heater equally, draught fan and forced draught blower, the air enters into from the breathing pipe, in the draught fan, enter into the sixth connecting pipe after air cleaner filters, enter into air heater through the forced draught blower, enter into the dehumidifier in the fifth connecting pipe enters into after air heater heats, the inside steam of molecular sieve is located in the high temperature air evaporation, discharge outdoor through the blast pipe, thereby accomplish the molecular sieve activation, convenient to reuse.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments 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 for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of a material heating mechanism for preparing a concrete additive according to the present invention;
FIG. 2 is a front view of a material heating mechanism for concrete additive preparation according to the present invention;
fig. 3 is a schematic view of the installation of the orifice plate proposed by the present invention;
fig. 4 is a schematic diagram of an external structure of a dehumidifier according to the present invention.
In the figure:
1. an air heater; 2. a dehumidifier; 3. a blower; 4. an induced draft fan; 5. an air filter; 6. an air inlet pipe; 7. a first connecting pipe; 8. a one-way valve; 9. an exhaust pipe; 10. a first solenoid valve; 11. a molecular sieve; 12. an orifice plate; 13. a sixth electromagnetic valve; 14. a second connection pipe; 15. a third connecting pipe; 16. a fourth connecting pipe; 17. an air intake duct; 18. a second solenoid valve; 19. a fifth connecting pipe; 20. an air outlet pipe; 21. a third electromagnetic valve; 22. a fourth solenoid valve; 23. a sixth connecting pipe; 24. a fifth solenoid valve; 25. and (4) air holes.
Detailed Description
For further explanation of the embodiments, the drawings are provided as part of the disclosure and serve primarily to illustrate the embodiments and, together with the description, to explain the principles of operation of the embodiments, and to provide further explanation of the invention and advantages thereof, it will be understood by those skilled in the art that various other embodiments and advantages of the invention are possible, and that elements in the drawings are not to scale and that like reference numerals are generally used to designate like elements.
According to the utility model discloses an embodiment provides concrete additive preparation is with material heating mechanism.
Referring now to the drawings and the detailed description of the preferred embodiment, as shown in fig. 1-4, a material heating mechanism for concrete additive preparation according to an embodiment of the present invention includes an air heater 1 and a dehumidifier 2, an air inlet pipe 6 is connected to an air inlet end of the air heater 1, and the other end of the air inlet pipe 6 is connected to a blower 3, which is a common device in the art, and an air inlet end of the blower 3 is connected to a first connecting pipe 7, the other end of the first connecting pipe 7 is connected to one end of the dehumidifier 2, and the other end of the dehumidifier 2 is connected to a second connecting pipe 14, and the other end of the second connecting pipe 14 is connected to an air filter 5, which is a common device in the art, an air inlet end of the air filter 5 is connected to a third connecting pipe 15, and the other end of the third connecting pipe 15 is connected to an induced draft fan 4, and an air inlet end of the induced draft fan 4 is connected to a fourth connecting pipe 16, a surface of the fourth connecting pipe 16 is connected to an air suction pipe 17, and the other end of the fourth connecting pipe 16 is connected to an air outlet end of a bag type dust collector, which is a common device, and the other end of the fourth connecting pipe 16 is connected to an air outlet pipe 16, an air outlet pipe 12, and a fifth connecting pipe 19 is installed below a solenoid valve 12, and a solenoid valve 12 is installed below the surface of the air outlet pipe 12, and a fifth connecting pipe 12, and a solenoid valve 12 is installed on the air outlet pipe 12, the sixth electromagnetic valve 13 is installed on the surface of the second connecting pipe 14, the other end of the air inlet pipe 6 is in through connection with the air outlet end of the air feeder 3, the other end of the third connecting pipe 15 is in through connection with the air outlet end of the induced draft fan 4, the other end of the second connecting pipe 14 is in through connection with the air outlet end of the air filter 5, in the process of preparing the polycarboxylic acid powder, the air heater 1, the air feeder 3 and the induced draft fan 4 are opened, the second electromagnetic valve 18 is opened, the outside air enters the fourth connecting pipe 16 from the air suction pipe 17, enters the air filter 5 through the induced draft fan 4, enters the dehumidifier 2 after being filtered by the air filter 5, moisture in the air enters the air feeder 3 after being adsorbed by the molecular sieve 11, enters the polycarboxylic acid powder drying tower after being heated by the air heater 1, contacts with the atomized polycarboxylic acid mother liquor, high-temperature air quickly evaporates moisture in the atomized polycarboxylic acid mother liquor to form powder, the powder, after being shunted by the cyclone unit, the tail gas flows back into the fourth connecting pipe 16, the tail gas continues to flow into the tail gas molecular sieve drying tower, the tail gas passes through the cyclone unit, the secondary drying tower, the secondary drying of the molecular sieve 11, the energy-saving device, the energy of the secondary drying of the air, and the secondary drying of the secondary carboxylic acid powder, the secondary drying device, the energy-saving type polycarboxylic acid powder, and recycling of the air, and the energy-saving device, the energy-saving type drying device, the energy-saving device, and recycling of the secondary-saving device for preparing polycarboxylic acid powder, and recycling of the secondary-saving type polycarboxylic acid powder, and the secondary-saving type drying device, and recycling heat-saving device, and recycling the energy-saving device for preparing the air, and the energy-saving device for preparing polycarboxylic acid powder, and the energy-saving device for preparing the air, and recycling the environmental-saving.
In one embodiment, an exhaust pipe 9 is connected to one end of the dehumidifier 2 in a penetrating manner, a first electromagnetic valve 10 is installed on the surface of the exhaust pipe 9, a sixth connecting pipe 23 is connected between the second connecting pipe 14 and the first connecting pipe 7 in a penetrating manner, a fifth electromagnetic valve 24 is installed on the surface of the sixth connecting pipe 23, when the molecular sieve 11 is saturated, a worker can open the second electromagnetic valve 18, the first electromagnetic valve 10, the third electromagnetic valve 21 and the fifth electromagnetic valve 24, close the fourth electromagnetic valve 22 and the sixth electromagnetic valve 13, start the air heater 1, the induced draft fan 4 and the blower 3 in the same manner, air enters the air suction pipe 17, the induced draft fan 4, enters the sixth connecting pipe 23 after being filtered by the air filter 5, enters the air heater 1 through the blower 3, enters the fifth connecting pipe 19 after being heated by the air heater 1, enters the dehumidifier 2, high-temperature air evaporates water vapor inside the molecular sieve 11, and is discharged to the outside through the exhaust pipe 9, so as to complete activation of the molecular sieve 11, and is convenient for reuse, and when the preparation of the polycarboxylic acid powder is normally performed, the first electromagnetic valve 10, the third electromagnetic valve 21 and the fifth electromagnetic valve 24 are closed, the fourth electromagnetic valve 18 and the sixth electromagnetic valve 13 are opened.
In one embodiment, the first connecting pipe 7 is surface-mounted with a one-way valve 8, and the one-way valve 8 is ventilated in the direction of air flowing into the blower 3, so as to prevent air from flowing back into the dehumidifier 2, and the air flow passes through the dehumidifier 2 in one direction.
In one embodiment, the surface of the pore plate 12 is provided with air holes 25, the air holes 25 are densely provided, and the diameter of the air holes 25 is smaller than the diameter of the molecular sieve 11, so that the air permeation is facilitated and the leakage of the molecular sieve 11 is avoided.
In one embodiment, the dehumidifier 2 is a cylindrical structure, and the dehumidifier 2 is a sealed structure to prevent air leakage.
The working principle is as follows:
when the preparation of the polycarboxylic acid powder is normally carried out, the first electromagnetic valve 10, the third electromagnetic valve 21 and the fifth electromagnetic valve 24 are closed, the second electromagnetic valve 18, the fourth electromagnetic valve 22 and the sixth electromagnetic valve 13 are opened, the air heater 1, the blower 3 and the induced draft fan 4 are opened, the second electromagnetic valve 18 is opened, the outside air enters the fourth connecting pipe 16 from the air suction pipe 17, enters the air filter 5 through the induced draft fan 4, enters the dehumidifier 2 after being filtered by the air filter 5, the moisture in the air enters the blower 3 after being adsorbed by the molecular sieve 11, enters the polycarboxylic acid powder drying tower after being heated by the air heater 1, contacts with the atomized polycarboxylic acid mother liquor, the moisture in the atomized polycarboxylic acid mother liquor is quickly evaporated by the high-temperature air to form powder, the tail gas flows back to the fourth connecting pipe 16 through the bag type dust collector after being shunted by the cyclone shunt unit, the tail gas after dust removal has certain residual temperature and continuously flows into the molecular sieve 11, the tail gas after secondary dehumidification by the molecular sieve 11 enters the polycarboxylic acid powder drying tower again for drying after secondary heating by the air heater 1, the device repeatedly utilizes the residual temperature of the tail gas, reduces the working energy consumption of the air heater 1, is more environment-friendly and energy-saving, and simultaneously improves the evaporation efficiency of moisture in the polycarboxylic acid mother liquid by continuous dehumidification of the molecular sieve 11, thereby improving the preparation efficiency of the polycarboxylic acid powder, meanwhile, when the molecular sieve 11 is saturated, a worker can open the second electromagnetic valve 18, the first electromagnetic valve 10, the third electromagnetic valve 21 and the fifth electromagnetic valve 24, close the fourth electromagnetic valve 22 and the sixth electromagnetic valve 13, start the air heater 1, the draught fan 4 and the blower 3 as well, and air enters from the air suction pipe 17, in the draught fan 4, enter into the sixth connecting pipe 23 after air cleaner 5 filters, enter into air heater 1 through forced draught blower 3, enter into fifth connecting pipe 19 after air heater 1 heats and enter into dehumidifier 2, high temperature air evaporates the inside steam that is located molecular sieve 11, discharges through blast pipe 9 outdoor to accomplish the activation of molecular sieve 11, the used repeatedly of being convenient for.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The material heating mechanism for preparing the concrete additive is characterized by comprising an air heater (1) and a dehumidifier (2), wherein the air inlet end of the air heater (1) is connected with an air inlet pipe (6) in a penetrating way, the other end of the air inlet pipe (6) is connected with a blower (3) in a penetrating way, the air inlet end of the blower (3) is connected with a first connecting pipe (7) in a penetrating way, the other end of the first connecting pipe (7) is connected with one end of the dehumidifier (2) in a penetrating way, the other end of the dehumidifier (2) is connected with a second connecting pipe (14) in a penetrating way, the other end of the second connecting pipe (14) is connected with an air filter (5) in a penetrating way, the air inlet end of the air filter (5) is connected with a third connecting pipe (15) in a penetrating way, the other end of the third connecting pipe (15) is connected with a draught fan (4) in a penetrating way, the air inlet end of the draught fan (4) is connected with a fourth connecting pipe (16) in a penetrating way, the surface of the fourth connecting pipe (16) is connected with an air suction pipe (17) in a penetrating way, the other end of the fourth connecting pipe (16) is connected with the air outlet end of the bag type dust remover, the air outlet end of the air heater (1) is connected with an air outlet pipe, the fifth connecting pipe (19) and the fifth connecting pipe (19) is connected with the fifth connecting pipe (19), and the inside fixed mounting of dehumidifier (2) has orifice plate (12) to it has molecular sieve (11) to fill between orifice plate (12), fourth solenoid valve (22) are installed to the surface of outlet duct (20) position in fifth connecting pipe (19) downstream, and fifth connecting pipe (19) surface mounting has third solenoid valve (21), breathing pipe (17) surface mounting has second solenoid valve (18), second connecting pipe (14) surface mounting has sixth solenoid valve (13).
2. The heating mechanism for the materials for preparing the concrete additives as recited in claim 1, wherein an exhaust pipe (9) is connected to one end of the dehumidifier (2) through, and a first solenoid valve (10) is installed on the surface of the exhaust pipe (9), a sixth connecting pipe (23) is connected between the second connecting pipe (14) and the first connecting pipe (7) through, and a fifth solenoid valve (24) is installed on the surface of the sixth connecting pipe (23).
3. The concrete additive preparation material heating mechanism according to claim 1, wherein a check valve (8) is surface-mounted on the first connecting pipe (7), and the ventilation direction of the check valve (8) is the direction of gas flowing into the blower (3).
4. The material heating mechanism for preparing the concrete additive as claimed in claim 1, wherein air holes (25) are formed on the surface of the pore plate (12), the air holes (25) are densely formed, and the pore diameter of the air holes (25) is smaller than the particle diameter of the molecular sieve (11).
5. The concrete additive preparation material heating mechanism according to claim 1, wherein the other end of the air inlet pipe (6) is connected with the air outlet end of the air blower (3) in a penetrating manner.
6. The concrete additive preparation material heating mechanism according to claim 1, wherein the other end of the third connecting pipe (15) is connected with the air outlet end of the induced draft fan (4) in a penetrating manner.
7. The concrete additive preparation material heating mechanism according to claim 1, wherein the other end of the second connecting pipe (14) is connected to the air outlet end of the air filter (5).
8. The concrete additive preparation material heating mechanism according to claim 1, wherein the dehumidifier (2) has a cylindrical structure, and the dehumidifier (2) has a sealed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221946822.5U CN218107056U (en) | 2022-07-27 | 2022-07-27 | Material heating mechanism for preparing concrete additive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221946822.5U CN218107056U (en) | 2022-07-27 | 2022-07-27 | Material heating mechanism for preparing concrete additive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218107056U true CN218107056U (en) | 2022-12-23 |
Family
ID=84521221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221946822.5U Active CN218107056U (en) | 2022-07-27 | 2022-07-27 | Material heating mechanism for preparing concrete additive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218107056U (en) |
-
2022
- 2022-07-27 CN CN202221946822.5U patent/CN218107056U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207050153U (en) | A kind of full heat recovery fresh air machine | |
| CN205782992U (en) | A kind of organic waste gas treatment device | |
| CN102679470A (en) | Self-cleaning efficient constant-humiture energy-saving central air conditioner | |
| CN105964088A (en) | Fume desulfurization, denitrification, dust collection and waste heat recycling integrated machine for bulk curing barn | |
| CN210097283U (en) | Air purification device based on ultrasonic technology | |
| CN218107056U (en) | Material heating mechanism for preparing concrete additive | |
| CN212620178U (en) | Smoke and dust purifier for intermediate frequency electric stove | |
| CN211079662U (en) | Environment-friendly setting machine for spinning | |
| CN208893936U (en) | A kind of efficient coal-fired kiln gas disappears white device | |
| CN209857698U (en) | Boiler flue gas waste heat recycling system | |
| CN207963315U (en) | A kind of mosquito-repellent incense production drying unit | |
| CN207936340U (en) | A kind of air purifier that atomizing effect is good | |
| CN206648069U (en) | A kind of residual heat from boiler fume recovery system | |
| CN200972208Y (en) | Multifunction radiator with air purification device | |
| CN206262271U (en) | A kind of strong absorptive dust Special bag type dust collector | |
| CN210512725U (en) | Environment-friendly combined cooling tower | |
| CN209952492U (en) | Active carbon kiln tail gas collection device | |
| CN114011330A (en) | Energy-concerving and environment-protective type fluidization pelletization drying device | |
| CN202709336U (en) | Self-cleaning high-efficiency constant-temperature constant-humidity energy-saving central air conditioning wind ark | |
| CN218646108U (en) | Hot air recycling energy-saving system of granulator | |
| CN208145648U (en) | Air conditioning dust removal machine | |
| CN212805679U (en) | High-efficient low consumption catalytic combustion device of organic waste gas | |
| CN214664966U (en) | Bidirectional flow fresh air purification device | |
| CN203784980U (en) | Energy-saving boiler purification device | |
| CN210993034U (en) | Drying system is used in polyaluminium chloride production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |