CN109139430A - Electric diaphragm pump - Google Patents
Electric diaphragm pump Download PDFInfo
- Publication number
- CN109139430A CN109139430A CN201710989426.8A CN201710989426A CN109139430A CN 109139430 A CN109139430 A CN 109139430A CN 201710989426 A CN201710989426 A CN 201710989426A CN 109139430 A CN109139430 A CN 109139430A
- Authority
- CN
- China
- Prior art keywords
- turbine
- follower lever
- translating cam
- round
- worm screw
- 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.)
- Pending
Links
- 239000003638 chemical reducing agent Substances 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 abstract description 2
- 238000012946 outsourcing Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000033001 locomotion Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 241001400675 Sympodium Species 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical group C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000011499 joint compound Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/04—Pumps having electric drive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The present invention proposes a kind of electric diaphragm pump, comprising: intermediate；Turbine is rotatably arranged on intermediate；Left circle translating cam is located at the left side of turbine and links with turbine；Right circle translating cam is located at the right side of turbine and links with turbine；Worm screw engages with turbine, and the front end of worm screw is rotatably arranged on intermediate；Driving part is located on intermediate and is connected with the rear end of worm screw to drive worm screw to rotate；Left follower lever passes through the left side wall of intermediate and can move left and right relative to the left side wall of intermediate, and the right end of left follower lever is bonded with left round translating cam；Right follower lever passes through the right side wall of intermediate and can move left and right relative to the right side wall of intermediate, and the left end of right follower lever is bonded with right round translating cam.Electric diaphragm pump according to an embodiment of the present invention can save outsourcing speed reducer, substantially reduce production our department, and large journal in related mechanism is avoided to reduce operating noise to the constant impingement of pump shaft.
Description
Technical field
The present invention relates to a kind of electric diaphragm pumps.
Background technique
Electric diaphragm pump is a kind of new pump class, now mature to be applied to the industries such as petrochemical industry, metallurgy, its main feature is that conveying
Medium and gearing are separated by diaphragm, and medium will not be not required to water to outward leakage, and suction capacity is strong etc..And pump nothing itself
Axle envelope, so that the service life greatly prolongs.
Diaphragm pump transmission medium multiplicity, to liquid, solution, cohesive material, mud, suspension, flowable solids or powder
Deng.Existing electric diaphragm pump is driven by motor via reducer, including diaphragm pump, motor and speed reducer, and diaphragm pump is equipped with upper
Lid, lower cover, column, intermediate, pump shaft, crankshaft, diaphragm etc., column and diaphragm form a pressure water cavity, and pressure water cavity and lower cover are logical
It crosses check valve connection and constitutes feed end, pressure water cavity and upper cover pass through check valve connection and constitute discharge end.Left and right sides diaphragm passes through
Outside, inner splint connects pump shaft both ends, and pump shaft is cylindrical body, intermediate jagged, forms cavity.Motor shaft passes through output end of reducer
Fitting turning crankshaft, motor shaft, reductor shaft and crankshaft Pivot axle coaxial line, turning crankshaft headgear sympodium are vertically stretched after holding
Enter in the cavity of pump shaft, when motor band dynamic crankshaft rotates, bearing outer ring drives pump shaft to move reciprocatingly, to force left and right film
Piece stretches, and periodically changes volume and pressure in two side pressure water cavities, realizes uninterrupted pumping under the cooperation of each check valve
Material.
Existing electric diaphragm pump is driven by motor via reducer, and motor is connected with speed reducer, speed reducer output shaft pressure
Enter bearing, prevents axis from beating for fixing output shaft.It is inserted in crankshaft, speed reducer output shaft and crankshaft rotation center in output shaft top
Axis coaxial line, crankshaft output end fitting bearing, is protruded into pump shaft central indentation, and pump shaft rides on the pump housing, and left and right passes through spiral shell respectively
Nail is connect with inside and outside clamping plate and diaphragm.Diaphragm be it is discoid, edge is clamped by intermediate flange and column.In diaphragm and stand
The pressure water cavity that material passes through is formed between column.Upper cover is connected by screw to column, and the delivery outlet of left and right pillar is merged into one
A delivery outlet, lower cover and column are connected also by screw, and an input port is merged into the input port of the left and right sides.
Band dynamic crankshaft rotates after motor rotation, and crankshaft output end bearing squeezes pump shaft, makes pump shaft under the constraint of intermediate
Straight reciprocating motion is done, to pull diaphragm periodically to change the volume and pressure of left and right pressure water cavity, in matching for 4 check valves
Under conjunction, the lasting conveying of material is realized.
Existing electric diaphragm pump cannot be used directly since motor speed is higher.The side that must be slowed down using speed reducer
Case, in the case where meeting reduction ratio requirement, the speed reducer cost of motor cooperation is larger, and electric diaphragm pump macroeconomic is caused to imitate
Benefit is poor.
In addition, crankshaft is in rotary course, and it is smooth to guarantee to move, between being small between large journal and pump shaft notch
Gap cooperation.Crankshaft moves in a circle around rotation center, and outer end bearings move in a circle around itself geometric center, then resultant motion is
Elliptical motion, the point for indicating that bearing is bonded with pump shaft do elliptical motion.To cause bearing and pump shaft a reciprocal week
One-shot can be respectively carried out to pump shaft left and right sides in phase, which will not cause mechanical injuries to pump shaft, but can cause electronic
There are biggish noises when diaphragm pump work.Deteriorate diaphragm pump working environment, reduces staff's comfort.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, an object of the present invention is to provide it is a kind of it is low in cost, avoid the constant impingement to pump shaft, reduce work
Make the electric diaphragm pump of noise.
Electric diaphragm pump according to an embodiment of the present invention, comprising:
Intermediate；
Turbine, the turbine are rotatably arranged on the intermediate；
Left circle translating cam, the left round translating cam be located at the left side of the turbine and with the turbine
It is dynamic；
Right circle translating cam, the right round translating cam be located at the right side of the turbine and with the turbine
It is dynamic；
Worm screw, the worm screw engage with the turbine, and the front end of the worm screw is rotatably arranged on the intermediate；
Driving part, the driving part are located on the intermediate and are connected with the rear end of the worm screw described in driving
Worm screw rotation；
Left follower lever, the left follower lever pass through the left side wall of the intermediate and the left side wall relative to the intermediate
It can move left and right, the right end of the left follower lever is bonded with the left round translating cam；
Right follower lever, the right follower lever pass through the right side wall of the intermediate and the right side wall relative to the intermediate
It can move left and right, the left end of the right follower lever is bonded with the right round translating cam.
Advantageously, the electric diaphragm pump further includes rotary shaft, and the rotary shaft is rotatably arranged at the intermediate
On, the turbine, the left round translating cam and the right round translating cam are socketed in respectively in the rotary shaft.
Advantageously, the driving part is motor.
Advantageously, the left follower lever and the right follower lever are bulb push rod.
Advantageously, the bulb of the left follower lever is bonded with the left round translating cam, the bulb of the right follower lever
It is bonded with the right round translating cam.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Fig. 1 is the schematic diagram of electric diaphragm pump according to an embodiment of the invention；
Fig. 2 is the decomposition diagram of Fig. 1；
Fig. 3 is the schematic diagram of electric diaphragm pump according to another embodiment of the present invention；
Fig. 4 is the cross-sectional view of the line A-A in Fig. 3；
Fig. 5 is the cross-sectional view of the line B-B in Fig. 3.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings it is described in detail electric diaphragm pump according to an embodiment of the present invention.
As shown in Figures 1 to 5, electric diaphragm pump according to an embodiment of the present invention, comprising: intermediate 101, turbine 102 are left
Round translating cam 103, right circle translating cam 104, worm screw 105, driving part 106, left follower lever 107, right follower lever
108。
Specifically, turbine 102 is rotatably arranged on intermediate 101.
Left circle translating cam 103 is located at a left side (direction indicated by an arrow left side i.e. as shown in Figure 2) end of turbine 102
It simultaneously links with turbine 102 in face.
Right circle translating cam 104 is located at the right side (direction indicated by the arrow right i.e. as shown in Figure 2) end of turbine 102
It simultaneously links with turbine 102 in face.
Worm screw 105 engages with turbine 102, and (the side of shown instruction before arrow i.e. as shown in Figure 2 before worm screw 102
To) end be rotatably arranged on intermediate 101.
Driving part 107 is located on intermediate 101 and rear (after arrow i.e. as shown in Figure 2 indicated with worm screw 105
Direction) end be connected with drive worm screw 105 rotate.Advantageously, driving part 107 is motor.
Left follower lever 107 passes through the left side wall of intermediate 101 and can control (i.e. such as relative to the left side wall of intermediate 101
Direction indicated by arrow shown in Fig. 2 or so) it is mobile, the right end of left follower lever 107 and left round translating cam 103 paste
It closes.
Right follower lever 108 passes through the right side wall of intermediate 101 and can move left and right relative to the right side wall of intermediate 101,
The left end of right follower lever 108 is bonded with right round translating cam 104.
Advantageously, left follower lever 107 and right follower lever 108 are bulb push rod.Further, the ball of left follower lever 107
Head is bonded with left round translating cam 103, and the bulb of right follower lever 108 is bonded with right round translating cam 104.
This is it should be noted that electric diaphragm pump according to an embodiment of the present invention, major improvement is that for transmission
The optimization of system.That is, worm screw, worm gear drive by the way of speed reducer, will be changed in the related technology.By above scheme,
Outsourcing speed reducer can be saved, production our department is substantially reduced, and avoids large journal in related mechanism to the constant impingement of pump shaft,
Reduce operating noise.
A specific embodiment according to the present invention, the electric diaphragm pump further include rotary shaft 109, rotary shaft 109
It is rotatably arranged on intermediate 101, turbine 102, left round translating cam 103 and right round translating cam 104 are socketed respectively
In rotary shaft 109.
As described above, electric diaphragm pump according to an embodiment of the present invention, major improvement is that for transmission system
Optimization.Therefore, in the above description, introduce the transmission system of electric diaphragm pump, and be omitted electric diaphragm pump its
His component, for example, the inside and outside clamping plate and diaphragm and left and right pillar of the left and right sides, ball valve, ball seat etc..This is for this field skill
It will be understood by for art personnel.
It following is a brief introduction of the assembling process of electric diaphragm pump according to an embodiment of the present invention.
1, the copper sheathing and bearing on intermediate are installed: left round translating cam 103 is bonded with right round translating cam 104
102 two sides disc face of turbine is inserted into rotary shaft 109 and is fastened with screw, knocks in anti-feather key after the completion, be put into intermediate 101,
Bearing is knocked in into 109 both ends of rotary shaft and is caught in end ring, so that rotary shaft 109 is rotatably arranged on intermediate 101；
2, copper sheathing is knocked in the left and right follower lever hole location being located in intermediate left and right sidewall, by left follower lever 107 and it is right from
Lever 108 divides half to pass through left and right driven rod aperture, and the bulb of follower lever is bonded with round translating cam, and adjustment position is caught in driven
Bar fastener；
3, follower lever fastener position is adjusted, knocks in follower lever fastener axis, and make follower lever fastener and fastener axis no-float,
Movement is without clamping stagnation；
4, it is inserted into worm screw and makes worm and gear engagement good, move without clamping stagnation；
5, the inside and outside clamping plate in left and right and diaphragm are screwed on left and right follower lever respectively, it is desirable that diaphragm edge is caught in
In diaphragm slot；
6, left and right pillar is installed and is packed into ball valve, ball seat, is finally installed upper cover, lower cover and column with bolt；
7, installation motor makes motor output shaft and worm screw fitting, and key is knocked in keyway.
Processing technology requirement: disc face must process keyway and screw hole at left and right sides of worm gear, and process locating slot and make worm gear
With the mobile boss of circle without relative displacement.Follower lever can be conventional bulb push rod, and bulb side and round mobile boss cooperate, separately
Side is equipped with threaded hole, and inside and outside clamping plate and diaphragm is facilitated to install.Column, upper cover, lower cover are identical as existing pneumatic diaphragm pump.
Through the above scheme, worm screw rotation is driven after motor rotation, the direction of motion is changed by turbine and reduces rotation speed
Degree, turbine drive the rotation of two sides circle translating cam, so that follower lever be forced to do straight reciprocating motion, then move left and right respectively
Left and right diaphragm, periodically changes volume and pressure in two side pressure water cavities, and continuous pump is realized under the cooperation of each check valve
Send material.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more, unless separately
There is clearly specific restriction.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art are within the scope of the invention to above-mentioned implementation
Example be changed, modify, replacement and variant, each fall within protection scope of the present invention.
Claims (5)
1. a kind of electric diaphragm pump characterized by comprising
Intermediate；
Turbine, the turbine are rotatably arranged on the intermediate；
Left circle translating cam, the left round translating cam are located at the left side of the turbine and link with the turbine；
Right circle translating cam, the right round translating cam are located at the right side of the turbine and link with the turbine；
Worm screw, the worm screw engage with the turbine, and the front end of the worm screw is rotatably arranged on the intermediate；
Driving part, the driving part are located on the intermediate and are connected with the rear end of the worm screw to drive the worm screw
Rotation；
Left follower lever, the left follower lever pass through the left side wall of the intermediate and can be left relative to the left side wall of the intermediate
It moves right, the right end of the left follower lever is bonded with the left round translating cam；
Right follower lever, the right follower lever pass through the right side wall of the intermediate and can be left relative to the right side wall of the intermediate
It moves right, the left end of the right follower lever is bonded with the right round translating cam.
2. electric diaphragm pump according to claim 1, which is characterized in that further include rotary shaft, the rotary shaft can be rotated
Ground is located on the intermediate, and the turbine, the left round translating cam and the right round translating cam are socketed in respectively
In the rotary shaft.
3. electric diaphragm pump according to claim 1, which is characterized in that the driving part is motor.
4. electric diaphragm pump according to claim 1, which is characterized in that the left follower lever and the right follower lever are
Bulb push rod.
5. electric diaphragm pump according to claim 4, which is characterized in that the bulb of the left follower lever and the left circle
Translating cam fitting, the bulb of the right follower lever are bonded with the right round translating cam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710989426.8A CN109139430A (en) | 2017-10-20 | 2017-10-20 | Electric diaphragm pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710989426.8A CN109139430A (en) | 2017-10-20 | 2017-10-20 | Electric diaphragm pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109139430A true CN109139430A (en) | 2019-01-04 |
Family
ID=64803712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710989426.8A Pending CN109139430A (en) | 2017-10-20 | 2017-10-20 | Electric diaphragm pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109139430A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111252554A (en) * | 2020-03-02 | 2020-06-09 | 江西黑猫炭黑股份有限公司 | Conveying equipment for producing white carbon black by gas phase method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB663447A (en) * | 1949-09-30 | 1951-12-19 | Menrow Pumps Ltd | Improvements in or relating to reciprocating pumps |
| CN200975331Y (en) * | 2006-06-13 | 2007-11-14 | 上海化工研究院 | Mechanically-actuated diaphram pump |
| CN201386633Y (en) * | 2009-02-16 | 2010-01-20 | 柴献 | Axial plunger pump |
| CN201496236U (en) * | 2009-08-21 | 2010-06-02 | 株洲市自强油气储运设备制造有限公司 | Hydraulic diaphragm pump |
| CN203925910U (en) * | 2014-06-17 | 2014-11-05 | 李浩霖 | Film drives frequency conversion measuring apparatus |
| CN106089660A (en) * | 2016-06-22 | 2016-11-09 | 孙德明 | Electronic barrier film sanitary pump and method of work thereof |
| CN207297296U (en) * | 2017-10-20 | 2018-05-01 | 边锋机械（集团）有限公司 | Electric diaphragm pump |
-
2017
- 2017-10-20 CN CN201710989426.8A patent/CN109139430A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB663447A (en) * | 1949-09-30 | 1951-12-19 | Menrow Pumps Ltd | Improvements in or relating to reciprocating pumps |
| CN200975331Y (en) * | 2006-06-13 | 2007-11-14 | 上海化工研究院 | Mechanically-actuated diaphram pump |
| CN201386633Y (en) * | 2009-02-16 | 2010-01-20 | 柴献 | Axial plunger pump |
| CN201496236U (en) * | 2009-08-21 | 2010-06-02 | 株洲市自强油气储运设备制造有限公司 | Hydraulic diaphragm pump |
| CN203925910U (en) * | 2014-06-17 | 2014-11-05 | 李浩霖 | Film drives frequency conversion measuring apparatus |
| CN106089660A (en) * | 2016-06-22 | 2016-11-09 | 孙德明 | Electronic barrier film sanitary pump and method of work thereof |
| CN207297296U (en) * | 2017-10-20 | 2018-05-01 | 边锋机械（集团）有限公司 | Electric diaphragm pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111252554A (en) * | 2020-03-02 | 2020-06-09 | 江西黑猫炭黑股份有限公司 | Conveying equipment for producing white carbon black by gas phase method |
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