CN215901006U - Automatic control system of thickener - Google Patents
Automatic control system of thickener Download PDFInfo
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- CN215901006U CN215901006U CN202121013647.XU CN202121013647U CN215901006U CN 215901006 U CN215901006 U CN 215901006U CN 202121013647 U CN202121013647 U CN 202121013647U CN 215901006 U CN215901006 U CN 215901006U
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Abstract
The utility model provides an automatic control system of a thickener, which relates to the technical field of thickeners and aims to solve the problems that the prior thickener is not provided with a structural device with remote and local control modes, so that the lifting rake action of the thickener cannot be divided into a manual lifting rake and an automatic lifting rake, and the rotary control of the whole thickener cannot be realized, and the traditional manual single manual control not only increases more manpower, but also greatly reduces the practicability and efficacy of the thickener, and comprises a thickening tank; the concentrating tank is of a hollow circular ring structure, the bridge is transversely connected and installed on the end face of the top of the upper side of the concentrating tank, and the support ring sleeve is installed on the end face of the outer side of the concentrating tank. In the utility model, the thickener is provided with remote control modes and local control modes, and the actions of lifting and lowering rakes in the thickener are divided into manual lifting and lowering rakes and automatic lifting and lowering rakes.
Description
Technical Field
The utility model relates to the technical field of thickeners, in particular to an automatic control system of a thickener.
Background
The thickener is a solid-liquid separation device based on gravity settling effect, and is generally a cylindrical shallow groove with a conical bottom, which is constructed by taking concrete, wood or a metal welding plate as a structural material, wherein an automatic control system of the thickener can realize automatic integrated operation on the operation of the whole thickener, so that the practicability of the thickener is greatly increased.
For example, patent No. CN209612286U discloses a thickener control system, which includes a thickener, a flocculant delivery pump connected to the thickener, a first controller, an underflow pump, and a second controller, wherein the first controller is connected to the flocculant delivery pump, and is configured to dynamically adjust the current operating frequency of the flocculant delivery pump according to the flow rate and density of feed pulp of the thickener; and the second controller is connected with the underflow pump and is used for dynamically adjusting the current operating frequency of the underflow pump according to the flow and density of feed ore pulp of the thickener, the density of the ore pulp at the outlet of the underflow pump and the bottom pressure value of the thickener. The utility model can realize the automatic control of the operating frequency of the flocculating agent delivery pump and the underflow pump in the running process of the thickener, so that the thickener runs stably and the automatic control effect of the thickener is improved.
When the automatic control system of the thickener is used, because the prior thickener is not provided with a remote and local structural device with two control modes, the lifting rake action of the thickener can not be divided into a manual lifting rake and an automatic lifting rake, and the rotary control of the whole thickener can not be realized, and the traditional manual single manual control can not be changed into an omnibearing automatic remote control use mode, so that more manpower labor is increased, and the practicability and the efficacy of the thickener are greatly reduced.
Therefore, in view of the above, research and improvement are made on the existing structure and defects, and an automatic control system of a thickener is provided, so as to achieve the purpose of higher practical value.
Disclosure of Invention
In order to solve the technical problems, the utility model provides an automatic control system of a thickener, which aims to solve the problems that the operation of a lifting rake of the thickener cannot be divided into a manual lifting rake and an automatic lifting rake and the rotation operation of the whole thickener cannot be realized because the prior thickener is not provided with a structural device with remote and local control modes, and the traditional manual operation increases more manpower and greatly reduces the practicability and the efficacy of the thickener.
The purpose and the efficacy of the automatic control system of the thickener are achieved by the following specific technical means: the automatic control system of the thickener comprises a thickening tank;
the concentration tank is of a hollow circular structure, and a bridge is transversely connected and installed on the end surface of the top of the upper side of the concentration tank;
the bracket is sleeved on the end surface of the outer side of the concentration tank;
the box bottom is of a hollow irregular cone-shaped structure, a circular hollow hole is formed in the middle inner side of the irregular cone-shaped structure, and the bottom flow pump is correspondingly installed at the middle upper end of the hollow hole.
Further, the underflow pump comprises,
the filter frame is formed by arranging and installing a group of strip-shaped vertical distribution rings and is installed on the end surface of the bottom of the lower side of the underflow pump;
and the drainage row teeth are vertically connected and installed on the hollow inner side between the two underflow pumps.
Further, including the crane span structure, a set of rectangular recess column structure of fretwork is seted up respectively for both sides terminal surface around the crane span structure, and corresponds the connection installation on the left and right sides terminal surface of concentrated pond a pair of rectangular crane span structure of fretwork that inclines to both sides respectively, and transmission connects the position placed in the middle of installing in crane span structure downside bottom.
The hydraulic power transmission device comprises a transmission device, wherein a cylindrical central transmission shaft penetrates through the middle inner side of the transmission device, a rotating rod is connected and installed at the bottom of the lower side of the central transmission shaft, and a hydraulic station is installed on the right side of the transmission device;
the hydraulic station comprises a hydraulic cylinder, a hydraulic cylinder and a hydraulic cylinder,
the oil pumps are respectively arranged on the middle inner sides of the hydraulic stations;
and the oil connecting sleeve is used for connecting and installing an oil outlet of the oil pump and an oil inlet of the transmission device together.
Further, the rotating lever includes,
the outer leakage cover is in a hollow irregular cylindrical structure, a group of hollow slotted holes are formed in the end face of the outer side of the outer leakage cover respectively, and the outer leakage cover is annularly sleeved and connected on the end face of the outer side of the underflow pump;
the outer extending rod is obliquely and fixedly arranged on one side of the rotating rod;
the vertical fixed mounting of intercommunication groove pole is on the outside top end face of stretching out the pole outward, and the vertical through connection of intercommunication groove pole installs in the fretwork track of groove dish.
The device further comprises a groove disc, wherein the groove disc is in a structure consisting of an oval body, an oval ring and an irregular circular arc;
the top rectangular trough plate at the front end of the rake frame is connected and arranged at the bottom of the lower end of the trough plate;
the rake teeth are respectively arranged at the bottom of the lower side of the rake rack.
Furthermore, the central position of the transmission device is a fixed rotating round point, the transmission device drives the rotating rod to rotate, when the rotating rod rotates, the extending rod and the communicating groove rod drive the groove disc and the rake frame to rotate, rake teeth at the lower part of the rake frame scrape the settled materials to the center of the concentration tank, the settled materials are discharged by the underflow pump, an outer leakage cover at the lower end of the rotating rod synchronously rotates and repeatedly rotates on the outer end face of the underflow pump, hollow holes of the filter frame and the outer leakage cover rotate alternately, the hydraulic station provides power for the transmission device through the connection of a connecting sleeve oil pipe, an oil pump of the hydraulic station is a variable pump, and the rotating speed of the rake frame is adjusted through adjusting the oil discharge quantity of the oil pump.
Compared with the prior art, the utility model has the following beneficial effects:
the filter frame and the outer leakage cover are respectively of a hollow structure formed by a group of strip-shaped vertically distributed annular arrangement, and the drainage tooth is vertically connected and installed at the hollow inner side between the underflow pump and the filter frame, so that the drainage tooth can play a main role in draining settled materials in the special hollow structures of the filter frame and the outer leakage cover, and the filter frame and the outer leakage cover can repeatedly and alternately rotate, thereby greatly increasing the rotating force and the friction force of the discharged settled materials, playing a role in transferring and stirring for some more viscous settled materials, and better preventing the settled materials from blocking the underflow pump, thereby always ensuring the smooth discharge of the settled materials by the thickener, and greatly increasing the practicability of the thickener;
the thickener is provided with remote and local control modes, and the lifting and lowering actions of the thickener are divided into a manual lifting and lowering harrow and an automatic lifting and lowering harrow, the manual lifting and lowering harrow is mainly used for debugging and overhauling, the position of the automatic lifting and lowering harrow is reached when the thickener works normally, and the system can automatically lift or lower the harrow according to real-time working pressure, so that the transmission device arranged at the upper end can realize the rotary control of the whole thickener, a rotary rod and a harrow frame arranged at the lower end synchronously rotate, and the operation is controlled in a concentration pool, so that the thickener can realize the control of the whole operation structure, the traditional manual single manual control is changed into an omnibearing automatic remote control use mode, more manpower labor is saved, and the practicability and the efficiency of the thickener are greatly improved.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
FIG. 1 is a schematic view of the left front upper axial view of the present invention.
Fig. 2 is a schematic view of the left front lower axial view structure of the present invention.
Fig. 3 is a front view schematically showing a part of the structure of the present invention.
Fig. 4 is a schematic view of the axial structure of the concentrating tank part of the present invention.
Fig. 5 is a schematic view of a partial axial view of the underflow pump of the utility model.
Fig. 6 is a schematic axial view of the bridge, transmission and hydraulic station of the present invention.
Fig. 7 is a schematic view of the structure of the rotating rod part of the present invention in partial axial view.
Fig. 8 is a schematic axial view of the grooved disk portion of the present invention.
Fig. 9 is an electrical appliance control flow chart of the present invention.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1. a concentration tank; 101. a support; 102. the box bottom; 2. an underflow pump; 201. a filter frame; 202. drainage and tooth arrangement; 3. a bridge frame; 4. a transmission device; 5. a hydraulic station; 501. an oil pump; 502. connecting an oil pipe; 6. rotating the rod; 601. an outer leakage cover; 602. an outward extending rod; 603. a connecting slot rod; 7. a grooved disc; 701. a rake rack; 702. and (4) rake teeth.
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 utility model but are not intended to limit the scope of the utility model.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through a central medium. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in figures 1 to 9:
the utility model provides an automatic control system of a thickener, which comprises a thickening tank 1;
the concentration tank 1 is of a hollow circular structure, and the end surface of the top of the upper side of the concentration tank 1 is transversely connected with a bridge frame 3;
the bracket 101, the bracket 101 is installed on the end surface of the outside of the concentration tank 1 in a loop manner;
the box bottom 102, the box bottom 102 is hollow irregular cone structure, and the inboard round hollowed hole of seting up in the middle of irregular cone, the upper end correspondence installation underflow pump 2 in the middle of hollowed hole, concentration tank 1 and support 101 are fixed primary structure in the thickener, the box bottom 102 is seted up for hollow cone structure makes the later stage to fall and subsides the material and has played the secondary action, set up closely between the structure and install not only to increase the diversified function of using of thickener, also more perfect the structural rationality of thickener simultaneously.
Wherein, the underflow pump 2 comprises a pump body,
the filter frame 201 is formed by arranging and installing a group of strip-shaped vertical distribution rings respectively, and is installed on the end face of the bottom of the lower side of the underflow pump 2;
The concentrating device comprises a bridge frame 3, wherein a group of hollowed rectangular groove-shaped structures are respectively arranged on the front side end face and the rear side end face of the bridge frame 3, a pair of hollowed strip-shaped bridge frames 3 which are respectively inclined towards two sides are correspondingly connected and installed on the left side end face and the right side end face of a concentrating pool 1, and a transmission device 4 is connected and installed in the middle of the bottom of the lower side of the bridge frame 3;
the hydraulic power transmission device comprises a transmission device 4, wherein a cylindrical central transmission shaft penetrates through the middle inner side of the transmission device 4, the bottom of the lower side of the central transmission shaft is connected with a rotating rod 6, and a hydraulic station 5 is arranged on the right side of the transmission device 4;
the hydraulic station 5 comprises a hydraulic station which is,
the oil pumps 501, the oil pumps 501 are respectively installed at the middle inner sides of the hydraulic stations 5;
even set oil pipe 502, even set oil pipe 502 is in the same place oil outlet 501 and transmission 4's oil inlet interconnect respectively, install transmission 4 on the lower extreme bottom end face placed in the middle of crane span structure 3, can make transmission 4's rotation can both carry out thorough contact with the whole inner structure of concentrated pond 1 through transmission 4's rotation, and hydraulic pressure station 5 and transmission 4 are unified to be installed on the installation straight line of crane span structure 3 downside bottom, can make transmission 4 and 5 convenient connections in hydraulic pressure station, what help transmission 4 of the oil extraction volume of hydraulic pressure station 5 carry out the system of controlling of rotation rate to rotary rod 6, realize the convenient of thickener and control, the work efficiency of thickener has been improved greatly.
Wherein the rotating rod 6 comprises a rotating rod,
the outer leakage cover 601 is in a hollow irregular cylindrical structure, a group of hollow slotted holes are respectively formed in the outer end face of the outer leakage cover 601, and the outer leakage cover 601 is annularly sleeved and connected on the outer end face of the underflow pump 2;
the external extension rod 602, the external extension rod 602 is obliquely and fixedly installed on one side of the rotating rod 6;
the communicating groove rod 603 is vertically and fixedly arranged on the outer top end face of the outer extending rod 602, and the communicating groove rod 603 is vertically and penetratingly arranged in the hollow track of the groove disc 7;
comprises a groove disc 7, wherein the groove disc 7 is in a structure consisting of an oval body, an oval ring and an irregular arc shape;
a rectangular trough plate at the top of the front end of the rake frame 701 is connected and installed at the bottom of the lower end of the trough plate 7;
rake teeth 702, the rake teeth 702 are respectively arranged at the bottom of the lower side of a rake rack 701, through the rotation of a rotating rod 6, an extending rod 602 and a communicating groove rod 603, a groove disc 7 is synchronously rotated along with the rotating rod 6, the thickener is provided with two control modes of remote control and local control, the rake lifting action is divided into a manual rake lifting and descending and an automatic rake lifting and descending, the manual rake lifting and descending is mainly used for debugging and overhauling, the rake lifting and descending automatically is positioned when working normally, the system can lift or descend the rake automatically according to real-time working pressure, thereby achieving the purposes of automatic rake lifting and descending, and further realizing the maximization of the convenient control function of the thickener.
Wherein, the central position of the transmission device 4 is a fixed rotating round point, the transmission device 4 drives the rotating rod 6 to rotate, when the rotating rod 6 rotates, the overhanging rod 602 and the communicating channel rod 603 drive the channel disc 7 and the harrow rack 701 to rotate, the harrow teeth 702 at the lower part of the harrow rack 701 scrape the settled material to the center of the concentration tank 1 and discharge the material by the underflow pump 2, the outer leakage cover 601 at the lower end of the rotating rod 6 synchronously rotates and repeatedly rotates on the outer end surface of the underflow pump 2, the hollow holes of the filter frame 201 and the outer leakage cover 601 mutually rotate and alternate, the hydraulic station 5 provides power for the transmission device 4 through the connection of the connecting oil pipe 502, the oil pump 501 of the hydraulic station 5 is a variable pump, the rotating speed of the harrow rack 701 is adjusted by adjusting the oil discharge of the oil pump 501, so that the transmission device 4 at the upper end realizes the rotating control of the whole thickener, and the rotating rod 6 at the lower end and the harrow rack 701 synchronously rotate, and the operation is in the mode of controlling of concentrated pond 1 inside, makes the thickener accomplish controlling to whole operation structure, changes traditional artifical single manual control into the all-round automatic use of can remote control, not only saves more human labor, more great improvement the practicality and the efficiency of thickener.
The specific use mode and function of the embodiment are as follows:
in the using process, firstly, a main power supply and a control power supply in the system are sequentially connected, if the oil temperature of an oil tank is lower than 10 ℃ at the moment after power is supplied, the system can not work, a heater can automatically heat, a heating medium stops heating when the temperature is 20 ℃, operation can be carried out at the moment, the central position of a transmission device 4 is a fixed rotating round point, the transmission device 4 drives a rotating rod 6 to rotate, when the rotating rod 6 rotates, an extending rod 602 and a communicating groove rod 603 drive a groove disc 7 and a rake frame 701 to rotate, rake teeth 702 at the lower part of the rake frame 701 scrape settled materials to the center of a concentration pool, the settled materials are discharged by a underflow pump 2, a first change-over switch is rotated anticlockwise to the on-site position from a zero position, the on-site state can be displayed on a touch screen at the moment, a second change-over switch is rotated anticlockwise to the manual rake lifting position from the zero position, a rake lifting button is pressed down, and a rake pump motor and a rake lifting electromagnetic valve can simultaneously operate (the operation state can be displayed on the touch screen), executing rake lifting action, pressing a lifting stopping button, and stopping rake lifting action; when a descending rake button is pressed, a rake descending electromagnetic valve can operate (the operation state of the rake descending electromagnetic valve can be displayed on a touch screen), rake descending operation is executed by depending on the self weight of a rake frame 701, a stop ascending and descending button is pressed, rake descending operation also stops, when a host starting button is pressed, a driving pump motor and a host electromagnetic valve can operate simultaneously (the operation state of the host electromagnetic valve can be displayed on the touch screen), rotation operation of the rake frame 701 is executed, a host stop button is pressed, the rake frame 701 stops rotating, an outer leakage cover 601 at the lower end of a rotating rod 6 synchronously rotates and repeatedly rotates on the outer end face of a base flow pump 2, hollow holes of a filter frame 201 and the outer leakage cover 601 rotate and alternate with each other, a hydraulic station 5 provides power for a transmission device 4 through connection of a connecting oil pipe 502, an oil pump 501 of the hydraulic station 5 is a variable pump, the rotation speed of the rake frame 701 is adjusted through adjustment of the oil discharge quantity of the oil pump 501, a second change-over switch is rotated clockwise to an automatic ascending and descending position, when the materials settled to the bottom of the concentration tank increase and the bed layer thickens, the working resistance of the rake frame 701 increases, the pressure sensor transmits the current pressure to the PLC in real time, when the working resistance increases to 4.5Mpa (temporary), the PLC controls and executes rake lifting action, when the rake frame 701 is lifted, the working resistance decreases, when the working resistance decreases to 4Mpa (temporary), the rake is not lifted, the rake frame 701 stops at the height to rotate and work, when the working resistance decreases gradually and decreases to 3.5Mpa (temporary), the PLC controls and executes rake descending action, when the rake frame 701 falls, the working resistance increases, and when the working resistance increases to a set value again, the rake frame 701 is lifted again and repeats the actions, so that the purposes of automatic rake lifting and automatic rake descending are achieved;
in addition, the first change-over switch is rotated clockwise from the zero position to a remote position, the touch screen can be displayed in a remote state, the second change-over switch is rotated clockwise from the zero position to an automatic rake lifting position, a remote host starting instruction and a remote host stopping instruction can be sent from the centralized control chamber, remote starting and stopping control of rotation of the rake frame 701 is achieved, corresponding feedback signals are sent to the centralized control chamber, the working state of the concentrator is monitored, if the oil temperature is higher than 55 ℃ in the pump operation process, a cooler can be automatically started for cooling, when the temperature is cooled to 40 ℃, cooling is stopped, the current temperature value and the current pressure value are displayed on the operation page of the touch screen in real time, in the operation process, the automatic shutdown can be achieved if the driving pressure is high, when the liquid level of an oil tank is low, the liquid level of the oil tank is high, and the oil return pressure difference is large, the current temperature value and the current pressure value are reported to a DCS through the touch screen, and the stroke of the rake lifting oil cylinder approaches the limit stroke (the upper limit position, the lower position of the lower position, the lower position of the lower position, lower limit position), the whole machine stops running, and the start-up is manually resumed after the fault is eliminated.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (8)
1. The automatic control system of the thickener is characterized by comprising a thickening tank (1);
the concentration tank (1) is of a hollow circular structure, and the end surface of the top of the upper side of the concentration tank (1) is transversely connected with a bridge (3);
the bracket (101), the bracket (101) is annularly sleeved on the end surface of the outside of the concentration tank (1);
the box bottom (102) is of a hollow irregular cone-shaped structure, a circular hollow hole is formed in the middle inner side of the irregular cone-shaped structure, and the middle upper end of the hollow hole is correspondingly provided with the underflow pump (2).
2. The automatic control system of a thickener according to claim 1, wherein the underflow pump (2) comprises,
the filter frame (201), the filter frame (201) is formed by a group of long strips vertically distributed and annularly arranged, and is installed on the bottom end face of the lower side of the underflow pump (2);
the drainage row teeth (202) are vertically connected and installed on the hollow inner side in the middle of the underflow pump (2).
3. The automatic control system of the thickener according to claim 1, which comprises a bridge (3), wherein the bridge (3) is provided with a group of hollow rectangular groove-shaped structures on the front and back end surfaces respectively, a pair of hollow strip-shaped bridges (3) which incline towards two sides respectively are correspondingly connected and installed on the left and right end surfaces of the thickening tank (1), and the transmission device (4) is connected and installed at the middle position of the bottom of the lower side of the bridge (3).
4. The automatic control system of the thickener according to claim 3, which comprises a transmission device (4), wherein a cylindrical central transmission shaft is arranged through the middle inner side of the transmission device (4), a rotating rod (6) is arranged at the lower bottom of the central transmission shaft in a connecting way, and the hydraulic station (5) is arranged at the right side of the transmission device (4).
5. Automatic control system of thickeners according to claim 4, characterized in that the hydraulic station (5) comprises,
the oil pumps (501), the oil pumps (501) are respectively installed on the middle inner side of the hydraulic station (5);
and the oil connecting sleeve pipe (502) is used for connecting and installing the oil outlet of the oil pump (501) and the oil inlet of the transmission device (4) together respectively.
6. Automatic control system of thickeners according to claim 4, characterized in that the rotary bar (6) comprises,
the outer leakage cover (601), the outer leakage cover (601) is a hollow irregular cylinder structure, a group of hollow slotted holes are respectively formed in the end face of the outer side of the outer leakage cover (601), and the outer leakage cover (601) is annularly sleeved and connected on the end face of the outer side of the underflow pump (2);
the outer extension rod (602), the outer extension rod (602) is obliquely and fixedly arranged on one side of the rotating rod (6);
the connecting groove rod (603) is vertically fixedly mounted on the end face of the top of the outer side of the outer extending rod (602), and the connecting groove rod (603) is vertically connected in a hollow track of the groove disc (7) in a penetrating mode.
7. The automatic control system of the thickener according to claim 6, which comprises a slotted disk (7), wherein the slotted disk (7) is a structure consisting of an oval body, an oval ring and an irregular circular arc;
the top rectangular trough plate at the front end of the rake frame (701) is connected and installed at the bottom of the lower end of the trough plate (7);
the rake teeth (702), the rake teeth (702) are respectively arranged at the bottom of the lower side of the rake rack (701).
8. An automatic control system of a thickener according to any of claims 1-7, characterized by the steps of: the center of the transmission device (4) is a fixed rotary round point, the transmission device (4) drives the rotary rod (6) to rotate, when the rotating rod (6) rotates, the outward extending rod (602) and the communicating groove rod (603) drive the groove disc (7) and the harrow frame (701) to rotate, the harrow teeth (702) at the lower part of the harrow frame (701) scrape the settled material to the center of the concentration tank (1) and discharge the material by the underflow pump (2), the outer leakage cover (601) at the lower end of the rotating rod (6) synchronously rotates, the rotating rod repeatedly rotates on the outer side end face of the underflow pump (2), the hollow holes of the filter frame (201) and the outer leakage cover (601) mutually rotate and alternate, the hydraulic station (5) provides power for the transmission device (4) through the connection of the connecting sleeve oil pipe (502), the oil pump (501) of the hydraulic station (5) is a variable pump, the rotation speed of the rake frame (701) is adjusted by adjusting the oil discharge amount of the oil pump (501).
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| CN202121013647.XU CN215901006U (en) | 2021-05-13 | 2021-05-13 | Automatic control system of thickener |
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| CN202121013647.XU CN215901006U (en) | 2021-05-13 | 2021-05-13 | Automatic control system of thickener |
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