CN210281936U - A return water lifting box for grinding fluid centralized processing - Google Patents
A return water lifting box for grinding fluid centralized processing Download PDFInfo
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- CN210281936U CN210281936U CN201921223767.5U CN201921223767U CN210281936U CN 210281936 U CN210281936 U CN 210281936U CN 201921223767 U CN201921223767 U CN 201921223767U CN 210281936 U CN210281936 U CN 210281936U
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Abstract
The utility model discloses a backwater lifting box for the centralized treatment of grinding fluid, which comprises a box body, a box cover and a backwater lifting mechanism; the box body is of a hollow structure with an opening at the upper end, and the box cover is used for sealing the opening at the upper end of the box body; the bottom in the box body is of a conical structure, a liquid inlet is arranged above the side wall of the box body, and a high-low liquid level sensor is arranged in the box body; the backwater lifting mechanism comprises a backwater lifting component, a water collecting pipe and a water outlet connecting pipe; the water collecting pipe and the water outlet connecting pipe are both positioned at the top of the box cover, the water collecting pipe is provided with two water inlet interfaces and one water outlet interface, and the water outlet interface of the water collecting pipe is connected with the water outlet connecting pipe; two return water lifting components are symmetrically arranged at the top of the box cover. The utility model discloses simple structure, convenient to use, the operation is stable, has avoided because of the risk that the suction pump breaks down for a long time soaks in grinding fluid, has solved because of the problem that single suction pump operating time overlength breaks down, has also reduced equipment later stage maintenance, maintenance cost.
Description
Technical Field
The utility model relates to the technical field of waste water, concretely relates to return water lift tank for grinding fluid centralized processing.
Background
In the prior art, grinding fluid generated by equipment such as a grinding machine, a machining center and the like is mainly collected to a centralized sewage tank through a sewage collecting system and then is subjected to centralized treatment.
The dirty liquid collecting system in the existing grinding fluid process mainly comprises the following two types:
1. ground grooves are uniformly paved in a workshop, and grinding fluid generated by equipment such as each grinding machine, a machining center and the like flows into the ground grooves through pipelines at water outlets of the equipment and then is collected to a centralized sewage tank for centralized treatment.
2. Collecting grinding fluid generated by equipment such as a grinding machine, a machining center and the like to a sewage tank through a submerged pump water collecting tank; the submerged pump water collecting tank consists of a submerged pump, a liquid level sensing switch and a water collecting tank, and each device needs to be provided with the submerged pump water collecting tank independently; when the liquid level in the water collection tank reaches the preset liquid level, the liquid level inductive switch controls the submerged pump to start, and the sewage in the water collection tank is conveyed to the concentrated sewage tank through the lifting pipeline for concentrated treatment.
The mode of collecting the grinding fluid through the ground groove needs to uniformly plan the laying of the ground groove in the workshop before the installation and operation of equipment such as a grinding machine, a machining center and the like, so that the grinding fluid generated by the equipment such as the grinding machine, the machining center and the like can smoothly flow into the ground groove. After the grinding fluid flows into the geosyncline, rely on gravity to slowly flow into in the concentrated sewage case, impurity in the grinding fluid can deposit to the geosyncline at the in-process that slowly flows, leads to the geosyncline to appear blockking up the overflow condition, consequently, needs the manual work regularly to clear up the geosyncline, and manpower and materials consume greatly, have increased the later maintenance cost of mill. In addition, the ground groove is easy to generate liquid leakage, and the environmental protection requirement cannot be met.
The submerged pump water collecting tank can meet the water collecting requirement of the grinding fluid centralized treatment, but grinding fluids generated by equipment such as a grinding machine, a machining center and the like contain a large amount of impurities and are corrosive, and the submerged pump is soaked in the grinding fluids for a long time, so that the submerged pump is blocked and damaged; in addition, the submerged pump has the minimum suction height, and when the liquid level in the header tank was less than the minimum suction height of submerged pump, the submerged pump just can not normally carry out the suction, and the bottom just can have partial grinding fluid to collect to concentrated sewage incasement in the header tank, and impurity in the grinding fluid deposits gradually along with the time lapse, leads to the impurity in the header tank to deposit more and more, finally blocks up the submerged pump. The existing submerged pump water collection tank adopts a single pump mode, if the submerged pump fails, the submerged pump must be stopped for repair, and equipment such as a grinding machine, a machining center and the like connected with the submerged pump must also be stopped, so that unnecessary shutdown risks of a factory are increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the above-mentioned not enough, provide a return water lift tank for grinding fluid centralized processing, simple structure, convenient to use, the operation is stable, has avoided because of the suction pump soaks the risk that breaks down in grinding fluid for a long time, has solved the problem that breaks down because of single suction pump operating time overlength, has prolonged the cycle of clearance in the box, has reduced equipment later maintenance, maintenance cost, has improved the work efficiency of mill.
In order to achieve the purpose, the utility model provides a return water lifting box for the centralized treatment of grinding fluid, which comprises a box body, a box cover and a return water lifting mechanism; the box body is of a hollow structure with an opening at the upper end, and the box cover is used for sealing the opening at the upper end of the box body; the bottom in the box body is of a conical structure, a liquid inlet is formed above the side wall of the box body, and a high-low liquid level sensor is arranged in the box body;
the backwater lifting mechanism comprises a backwater lifting component, a water collecting pipe and a water outlet connecting pipe;
the top of the box cover is symmetrically provided with two return water lifting assemblies, each return water lifting assembly comprises a lifting kettle, a liquid suction arm, a visible liquid level pipe and a water suction pump, the lifting kettle is fixed at the top of the box cover, the lifting kettle comprises a lifting cylinder, a lifting cylinder upper end sealing head and a lifting cylinder lower end sealing head, the lifting cylinder is of a hollow columnar structure with openings at the upper end and the lower end, the lifting cylinder upper end sealing head is fixed at the upper end opening of the lifting cylinder in a sealing manner, and the lifting cylinder lower end sealing head is fixed at the lower end opening of the lifting cylinder in a sealing manner; the visible liquid level pipe is fixed on the outer side wall of the lifting cylinder through a pneumatic quick connector; the top of the end socket at the upper end of the lifting cylinder is provided with a copper-tooth manual ball valve; one end of the liquid suction arm penetrates through the side wall of the lifting cylinder to be communicated with the inner cavity of the lifting cylinder, the other end of the liquid suction arm penetrates through the box cover to extend to the inner bottom of the box body, and the central axis of the liquid suction arm and the central axis of the box body are parallel to each other and are positioned on the same vertical plane; the water suction port of the water suction pump is provided with a water suction pipe communicated with the inner cavity of the lifting cylinder, and the water outlet of the water suction pump is provided with a water drainage pipe;
the water collecting pipe and the water outlet connecting pipe are both positioned at the top of the box cover, the water collecting pipe is provided with two water inlet interfaces and one water outlet interface, and the water outlet interface of the water collecting pipe is connected with the water outlet connecting pipe; the water discharge pipes of the water discharge ports of the water suction pumps in the two return water lifting components are symmetrically arranged at the top of the tank cover and are respectively communicated with the two water inlet interfaces of the water collecting pipe;
the backwater lifting box for the grinding fluid centralized treatment further comprises a control box fixed at the top of the box cover, a controller is arranged in the control box, and the controller is respectively electrically connected with the high-low liquid level sensor and the water suction pump.
By adopting the technical scheme, the bottom in the box body is of a conical structure, one end of the liquid suction arm passes through the box cover and extends to the bottom in the box body, compared with a submerged pump water collecting box in the prior art, the water tank in the utility model has lower liquid level, the impurities settled in the box body are greatly reduced, the period for cleaning the interior of the box body is prolonged, the later maintenance cost is reduced, and the working efficiency of a factory is improved; the water pump is arranged at the top of the tank cover, so that the water pump is not easy to block and damage, and the risk of failure caused by long-term soaking of the water pump in the grinding fluid is avoided; the utility model relates to a be provided with two return water lifting assemblies in the return water lifting tank for grinding fluid centralized processing, when the liquid level of the grinding fluid of storage in the box reached the suction liquid level, any work in controller control two return water lifting assemblies, make the grinding fluid in the box loop through return water lifting assembly, catchment pipe, play water connecting pipe and collect to centralized processing equipment; the controller sets the two return water lifting components to be alternately used in a certain time interval, so that the risk of failure caused by overlong working time of a single return water lifting component is avoided; when any one of the two backwater lifting components breaks down, the other one can be automatically started, so that the grinding fluid is collected uninterruptedly, the working efficiency is improved, and the normal operation of equipment such as a grinding machine and a machining center cannot be influenced.
The above-mentioned return water lift box for grinding fluid centralized processing, wherein, be equipped with the observation lid on the case lid, be equipped with the stainless steel handle on the observation lid.
Through adopting above-mentioned technical scheme, staff's accessible stainless steel handle is opened and is observed the lid, observes box internal working state, and through opening the observation lid, the convenient silt to the box clears up simultaneously.
The above recycled water lifting box for the centralized treatment of the grinding fluid is characterized in that a vortex cover is fixedly sleeved on the outer side wall of one end of the liquid suction arm, which is positioned in the inner cavity of the box body, and the central axis of the vortex cover is superposed with the central axis of the liquid suction arm; the vortex cover is a hollow round platform structure with the upper end and the lower end both open, and the cross-sectional area of the vortex cover is gradually increased from top to bottom.
By adopting the technical scheme, the vortex cover can be used for placing the water suction pump to suck to form local vortex at the bottom in the box body; the vortex cover is a hollow round platform structure with an upper end and a lower end both provided with openings, the cross-sectional area is gradually increased from top to bottom, the periphery of the vortex cover can be enlarged by the vortex, and the precipitation of impurities at the bottom in the box body is further reduced.
The above recycled water lifting box for the centralized treatment of the grinding fluid is characterized in that an expansion joint and a check valve are arranged on a water discharge pipe of a water discharge port of the water suction pump.
By adopting the technical scheme, the expansion energy can reduce the problem of vibration of the whole pipeline caused by sudden starting of the pumping pump and also reduce the risk of water leakage of the pipeline caused by vibration; the check valve can prevent the grinding fluid in the drainage pipeline or the water collection pipe or the water outlet connecting pipe from flowing back to the box body when the water suction pump is closed.
The above-mentioned a return water lift box for grinding fluid centralized processing, wherein, the water outlet interface of catchment pipe with go out the water connecting pipe and pass through manual butterfly valve and connect.
By adopting the technical scheme, the water flow between the water collecting pipe and the water outlet connecting pipe can be cut off through the manual butterfly valve, so that the equipment maintenance and the internal cleaning of the water tank are facilitated for workers; meanwhile, the flow of the water outlet connecting pipe is controlled by a manual butterfly valve.
The above-mentioned return water lift tank for grinding fluid centralized treatment, wherein, be provided with the manometer on the water connecting pipe.
Through adopting above-mentioned technical scheme, through the observation water pressure that the manometer can be convenient.
The above recycled water lifting box for the concentrated treatment of the grinding fluid is characterized in that a cleaning opening is formed in the side wall of the box body.
The above-mentioned a return water lift box for grinding fluid centralized processing, wherein, still install the alarm on the box lateral wall, the alarm with the controller electricity is connected.
By adopting the technical scheme, after the liquid level of the grinding fluid stored in the box body exceeds the suction liquid level, the grinding fluid still continues to rise to the high-level alarm liquid level, the alarm alarms and prompts workers, and the controller controls the two return water lifting assemblies to work simultaneously, so that the liquid level in the box body is quickly lowered to the lower side of the suction liquid level.
The above-mentioned return water lift box for grinding fluid centralized processing, wherein, the alarm is audible and visual alarm.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. the utility model relates to a return water lifting box for the centralized treatment of grinding fluid, which has simple structure, convenient use and stable operation; the water pump is arranged at the top of the tank cover, so that the water pump is not easy to block and damage, and the risk of failure caused by long-term soaking of the water pump in the grinding fluid is avoided; the problem that a single water pump fails due to overlong working time is solved by alternately working the two return water lifting components within a set time interval; when any one of the two return water lifting assemblies breaks down, the other return water lifting assembly can be automatically started, so that the grinding fluid is collected uninterruptedly, the working efficiency is improved, and the normal operation of equipment such as a grinding machine and a machining center cannot be influenced.
2. The utility model relates to a return water lifting chamber for grinding fluid centralized processing passes through the setting of swirl cover, has reduced subsiding of impurity in the box, has prolonged the cycle of clearance in the box, has reduced equipment later stage maintenance, maintenance cost, has improved the work efficiency of mill.
Drawings
Fig. 1 is the schematic view of the main-view internal structure of a return water lifting box for the centralized treatment of grinding fluid.
Fig. 2 is a schematic view of the overlooking internal structure of the return water lifting box for the centralized treatment of the grinding fluid.
The correspondence between each mark and the part name is as follows:
the device comprises a box body 1, a box cover 2, a liquid inlet 3, a high-low liquid level sensor 4, a water collecting pipe 5, a water outlet connecting pipe 6, a liquid suction arm 7, a visible liquid level pipe 8, a water suction pump 9, a lifting cylinder upper end sealing head 10, a lifting cylinder lower end sealing head 11, a lifting cylinder 12, a pneumatic quick connector 13, a copper tooth mouth manual ball valve 14, a vortex cover 15, a control box 16, an observation cover 17, a stainless steel handle 18, an expansion joint 19, a check valve 20, a manual butterfly valve 21, a cleaning opening 22 and a backwater lifting component 23.
Detailed Description
In order to make the technical means, the inventive features, the objectives and the functions of the present invention easy to understand, the present invention will be further described with reference to the following specific drawings.
Examples
Referring to fig. 1 and 2, a backwater lifting box for grinding fluid centralized treatment comprises a box body 1, a box cover 2 and a backwater lifting mechanism; the box body 1 is of a hollow structure with an opening at the upper end, and the box cover 2 is used for sealing the opening at the upper end of the box body 1; the bottom in the box body 1 is of a conical structure, a liquid inlet 3 is arranged above the side wall of the box body 1, and a high-low liquid level sensor 4 is arranged in the box body 1.
The backwater lifting mechanism comprises a backwater lifting component 23, a water collecting pipe 5 and a water outlet connecting pipe 6.
The top of the box cover 2 is symmetrically provided with two backwater lifting components 23, each backwater lifting component 23 comprises a lifting kettle, a liquid suction arm 7, a visible liquid level pipe 8 and a water pump 9, the lifting kettle is fixed on the top of the box cover 2 and consists of a lifting cylinder 12, a lifting cylinder upper end socket 10 and a lifting cylinder lower end socket 11, the lifting cylinder 12 is of a hollow columnar structure with openings at the upper end and the lower end, the lifting cylinder upper end socket 10 is hermetically fixed at the upper end opening of the lifting cylinder 12, and the lifting cylinder lower end socket 11 is hermetically fixed at the lower end opening of the lifting cylinder 12; the visible liquid level pipe 8 is fixed on the outer side wall of the lifting cylinder 12 through a pneumatic quick connector 13; the top of the end socket 10 at the upper end of the lifting cylinder is provided with a copper-tooth manual ball valve 14; one end of the liquid suction arm 7 penetrates through the side wall of the lifting cylinder 12 to be communicated with the inner cavity of the lifting cylinder 12, the other end of the liquid suction arm 7 penetrates through the box cover 2 to extend to the bottom in the box body 1, and the central axis of the liquid suction arm 7 is parallel to the central axis of the box body 1 and is positioned on the same vertical plane; a water suction pipe communicated with the inner cavity of the lifting cylinder 12 is arranged at a water suction port of the water suction pump 9, and a water discharge pipe is arranged at a water discharge port of the water suction pump 9.
Wherein, the outer side wall of the end of the liquid suction arm 7, which is positioned at the inner cavity of the box body 1, is fixedly sleeved with a vortex cover 15, and the central axis of the vortex cover 15 is superposed with the central axis of the liquid suction arm 7; the vortex cover 15 is a hollow circular truncated cone structure with openings at the upper end and the lower end, and the cross-sectional area of the vortex cover 15 is gradually increased from top to bottom.
The water collecting pipe 5 and the water outlet connecting pipe 6 are both positioned at the top of the box cover 2, the water collecting pipe 5 is provided with two water inlet interfaces and one water outlet interface, and the water outlet interface of the water collecting pipe 5 is connected with the water outlet connecting pipe 6;
the water discharge pipes of the water discharge ports of the water suction pumps 9 in the two return water lifting components 23 are respectively communicated with the two water inlet interfaces of the water collecting pipe 5;
the backwater lifting box for the centralized treatment of the grinding fluid further comprises a control box 16 fixed at the top of the box cover 2, a controller is arranged in the control box 16, and the controller is electrically connected with the high-low liquid level sensor 4 and the water pump 9 respectively.
In the embodiment, the box cover 2 in the backwater lifting box for the centralized treatment of the grinding fluid is provided with the observation cover 17, and the observation cover 17 is provided with the stainless steel handle 18.
Wherein, an expansion joint 19 and a check valve 20 are sequentially arranged on the water discharge pipe of the water discharge port of the water pump 9.
Wherein, the water outlet interface of the water collecting pipe 5 is connected with the water outlet connecting pipe 6 through a manual butterfly valve 21. A pressure gauge is arranged on the water outlet connecting pipe 6.
Wherein, a cleaning opening 22 is arranged on the side wall of the box body 1.
An alarm is further installed on the outer side wall of the box body 1 in the return water lifting box for grinding fluid centralized treatment in the embodiment, and the alarm is electrically connected with the controller.
The alarm in the embodiment is an audible and visual alarm.
The high-low liquid level sensor 4 in the embodiment can feed back the suction liquid level, the high-level alarm liquid level and the stop suction liquid level to the controller.
In this embodiment, a return water lifting box for grinding fluid centralized treatment when using: the operator first brings the liquid level in the lift cylinder 12 to a safe level for aspiration via the copper mouthpiece manual ball valve 14, wherein the safe level for aspiration is located above the middle of the visible liquid level tube 8. After a high liquid level feedback signal in the high and low liquid level sensor 4 in the box body 1 is sent to the controller, the controller controls any one of the two return water lifting assemblies 23 to suck the grinding fluid in the box body 1, and the grinding fluid in the box body 1 is conveyed to the grinding fluid centralized treatment equipment through the liquid suction arm 7, the lifting cylinder 12, the water suction pump 9, the water collection pipe 5 and the water outlet connecting pipe 6 in sequence under the suction action of the water suction pump 9; along with the suction of the suction pump, the grinding liquid level in the box body 1 gradually decreases, and after the grinding liquid level in the box body 1 decreases to a feedback signal of the suction stopping liquid level in the high-low liquid level sensor 4 and is sent to the controller, the control box 16 stops the operation of the water return lifting assembly 23.
The controller in the embodiment comprises a cycle timer, and when the return water lifting box for the centralized treatment of the grinding fluid in the embodiment is used, the two return water lifting assemblies 23 can be controlled to be automatically switched and alternately used according to set time under the control of the controller, so that the problem of failure caused by overlong working time of a single water suction pump is solved. Meanwhile, when any one of the two return water lifting assemblies 23 breaks down, the controller automatically starts the other return water lifting assembly 23 to continuously work, so that the grinding fluid is collected uninterruptedly, the working efficiency is improved, and the normal operation of equipment such as a grinding machine and a machining center cannot be influenced.
When the backwater lifting box for the grinding fluid centralized treatment in the embodiment is used, after the liquid level of the grinding fluid in the box body 1 exceeds the suction liquid level and still continues to rise to the high-level alarm liquid level, the controller simultaneously controls and starts the two backwater lifting components 23, so that the grinding fluid in the box body 1 quickly falls to the liquid level at which the suction is stopped and below the liquid level, and the overflow of the box is avoided.
In conclusion, the utility model relates to a backwater lifting box for the centralized treatment of grinding fluid, which has simple structure, convenient use and stable operation; the risk of failure caused by long-term soaking of the water pump in the grinding fluid is avoided; the two return water lifting components 23 work alternately in the set time interval, so that the problem of failure caused by overlong working time of a single water pump is solved; when any one of the two return water lifting assemblies 23 breaks down, the other return water lifting assembly 23 can be automatically started, so that the grinding fluid is collected uninterruptedly, the working efficiency is improved, and the normal operation of equipment such as a grinding machine and a machining center cannot be influenced.
And simultaneously, the utility model relates to a return water lifting box for grinding fluid centralized processing has reduced subsiding of impurity in the box, has prolonged the cycle of clearance in the box, has reduced equipment later stage maintenance, maintenance cost, has reduced the running cost, has improved the work efficiency of mill.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A return water lifting box for grinding fluid centralized treatment is characterized by comprising a box body, a box cover and a return water lifting mechanism; the box body is of a hollow structure with an opening at the upper end, and the box cover is used for sealing the opening at the upper end of the box body; the bottom in the box body is of a conical structure, a liquid inlet is formed above the side wall of the box body, and a high-low liquid level sensor is arranged in the box body;
the backwater lifting mechanism comprises a backwater lifting component, a water collecting pipe and a water outlet connecting pipe;
the top of the box cover is symmetrically provided with two return water lifting assemblies, each return water lifting assembly comprises a lifting kettle, a liquid suction arm, a visible liquid level pipe and a water suction pump, the lifting kettle is fixed at the top of the box cover, the lifting kettle comprises a lifting cylinder, a lifting cylinder upper end sealing head and a lifting cylinder lower end sealing head, the lifting cylinder is of a hollow columnar structure with openings at the upper end and the lower end, the lifting cylinder upper end sealing head is fixed at the upper end opening of the lifting cylinder in a sealing manner, and the lifting cylinder lower end sealing head is fixed at the lower end opening of the lifting cylinder in a sealing manner; the visible liquid level pipe is fixed on the outer side wall of the lifting cylinder through a pneumatic quick connector; the top of the end socket at the upper end of the lifting cylinder is provided with a copper-tooth manual ball valve; one end of the liquid suction arm penetrates through the side wall of the lifting cylinder to be communicated with the inner cavity of the lifting cylinder, the other end of the liquid suction arm penetrates through the box cover to extend to the inner bottom of the box body, and the central axis of the liquid suction arm and the central axis of the box body are parallel to each other and are positioned on the same vertical plane; the water suction port of the water suction pump is provided with a water suction pipe communicated with the inner cavity of the lifting cylinder, and the water outlet of the water suction pump is provided with a water drainage pipe;
the water collecting pipe and the water outlet connecting pipe are both positioned at the top of the box cover, the water collecting pipe is provided with two water inlet interfaces and one water outlet interface, and the water outlet interface of the water collecting pipe is connected with the water outlet connecting pipe; the water discharge pipes of the water discharge ports of the water suction pumps in the two return water lifting components are symmetrically arranged at the top of the tank cover and are respectively communicated with the two water inlet interfaces of the water collecting pipe;
the backwater lifting box for the grinding fluid centralized treatment further comprises a control box fixed at the top of the box cover, a controller is arranged in the control box, and the controller is respectively electrically connected with the high-low liquid level sensor and the water suction pump.
2. The return water lift box for concentrated grinding fluid treatment according to claim 1, wherein the box cover is provided with an observation cover, and the observation cover is provided with a stainless steel handle.
3. The return water lifting box for grinding fluid centralized treatment as claimed in claim 1, wherein a vortex cover is fixedly sleeved on the outer side wall of one end of the liquid suction arm positioned in the inner cavity of the box body, and the central axis of the vortex cover is coincident with the central axis of the liquid suction arm; the vortex cover is a hollow round platform structure with the upper end and the lower end both open, and the cross-sectional area of the vortex cover is gradually increased from top to bottom.
4. The return water lifting tank for the centralized treatment of grinding fluid as claimed in claim 1, wherein an expansion joint and a check valve are provided on a drain pipe of the water suction pump discharge port.
5. The return water lifting tank for grinding fluid centralized treatment as claimed in claim 1, wherein the water outlet port of the water collecting pipe and the water outlet connecting pipe are connected through a manual butterfly valve.
6. The return water lifting tank for the concentrated treatment of the grinding fluid as claimed in claim 5, wherein a pressure gauge is arranged on the water outlet connecting pipe.
7. The return water lift box for concentrated grinding fluid treatment according to claim 1, wherein the side wall of the box body is provided with a cleaning port.
8. The return water lifting box for grinding fluid centralized treatment of claim 1, wherein an alarm is further mounted on the outer side wall of the box body, and the alarm is electrically connected with the controller.
9. The return water lifting tank for grinding fluid centralized treatment according to claim 8, characterized in that the alarm is an audible and visual alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921223767.5U CN210281936U (en) | 2019-07-31 | 2019-07-31 | A return water lifting box for grinding fluid centralized processing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921223767.5U CN210281936U (en) | 2019-07-31 | 2019-07-31 | A return water lifting box for grinding fluid centralized processing |
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| CN210281936U true CN210281936U (en) | 2020-04-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594427A (en) * | 2020-07-09 | 2020-08-28 | 宁波东弘环保科技有限公司 | Water pump operation protection device |
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2019
- 2019-07-31 CN CN201921223767.5U patent/CN210281936U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594427A (en) * | 2020-07-09 | 2020-08-28 | 宁波东弘环保科技有限公司 | Water pump operation protection device |
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