CN216170411U

CN216170411U - Filtration equipment for producing high-base-number calcium sulfonate-based lubricating grease

Info

Publication number: CN216170411U
Application number: CN202121908062.4U
Authority: CN
Inventors: 吴宝全
Original assignee: Jiangsu Aorun New Material Co ltd
Current assignee: Jiangsu Aorun New Material Co ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-04-05
Anticipated expiration: 2031-08-16

Abstract

The invention provides a filtering device for producing high-base-number calcium sulfonate-based lubricating grease, which comprises at least two filtering units, wherein each filtering unit comprises a tank body, the top of each tank body is open, a tank cover is arranged at the open position, a slag discharge port is arranged at the bottom, a pressure gauge and a slag discharge valve are arranged at the slag discharge port, a feed inlet close to the bottom and a discharge outlet close to the top are arranged on the tank body of each tank body, a filter pressing mechanism with one-way passing capacity is arranged in each tank body, the filter pressing mechanism is in dynamic sealing connection with the inner wall of each tank body, a hydraulic cylinder and a displacement detector are arranged on each tank cover, a push rod of each hydraulic cylinder is connected with the filter pressing mechanism, the discharge outlet of one filtering unit is connected with the feed inlet of the other filtering unit through a feed conveying pipe, a check valve is arranged on each feed conveying pipe, and the filtering capacity of each filtering unit is gradually enhanced along the material conveying direction. According to the invention, a multi-stage filtration mode is adopted to improve the filtration effect, each stage of filtration is pressure filtration, and the pressure of the piston is utilized to improve the passing speed of the material, so that the filtration efficiency is improved.

Description

Filtration equipment for producing high-base-number calcium sulfonate-based lubricating grease

Technical Field

The invention belongs to the technical field of lubricating grease production, and particularly relates to a filtering device for producing high-base-number calcium sulfonate-based lubricating grease.

Background

The composite calcium sulfonate base grease generally refers to lubricating grease which is compounded by high-base-number calcium sulfonate soap, fatty acid calcium soap and other soaps to thicken mineral oil base oil with different viscosities, and generally has comprehensive performance without adding various functional additives. The method is suitable for industries such as steel, smelting, paper pulp, fresh water and seawater transportation, railways, power generation, automobiles, buildings, food machinery (environment-friendly products) and the like. Especially in the presence of high temperature, humidity, water drenching (including seawater), corrosion, heavy load and impact load, the composite calcium sulfonate grease shows excellent performance inherent in the thickener, and the grease does not contain heavy metal and other functional additives harmful to the environment.

During the process of producing the lubricating grease, the raw materials need to be filtered so as to avoid the impurities from being mixed to affect the quality of the final product. For example, calcium sulfonate-based grease, mineral base oil, one of the raw materials, often has macroscopic impurities, and therefore, a filter is equipped to remove the impurities during pipeline transportation.

However, when the filter is used for filtering, the mineral base oil only passes through the filter under the conveying of the pump, the filtering pressure is not high, so that the number of the filter meshes is generally set to be 80-100 meshes, and the smaller impurities cannot be effectively removed.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the filter equipment for producing the high-base-number calcium sulfonate-based lubricating grease is provided, and the filter capacity is improved in a filter pressing mode.

The invention is realized by the following steps: a filter device for producing high-base-number calcium sulfonate-based lubricating grease comprises at least two filter units, the filtering unit comprises a tank body, the top of the tank body is open, a tank cover is arranged at the open, a slag discharge port is arranged at the bottom of the tank body, a pressure gauge and a slag discharge valve are arranged at the slag discharge port, the tank body of the tank body is provided with a feed inlet close to the bottom and a discharge outlet close to the top, a filter pressing mechanism with one-way passing capability is arranged in the tank body, the filter pressing mechanism is in dynamic sealing connection with the inner wall of the tank body, a hydraulic cylinder and a displacement detector are arranged on the tank cover, a push rod of the hydraulic cylinder is connected with the filter pressing mechanism, the discharge hole of one filter unit is connected with the feed hole of the other filter unit through a feed delivery pipe, the material conveying pipe is provided with a check valve, and the filtering capacity of the filtering unit is gradually enhanced along the material conveying direction.

Further, the filter pressing mechanism comprises a piston, a piston sleeve, a filter screen, a one-way valve and a filter screen compression ring; the piston is provided with the valve mounting hole, the piston housing sets up on the outer disc of piston, the check valve sets up in the valve mounting hole, the filter screen clamping ring is installed through threaded connection the bottom of piston and fix between the two the filter screen.

Further, the check valve comprises a valve cover with an outlet on a movable plate and a valve seat with a through hole, the valve seat and the valve cover are connected at the valve mounting hole, the movable plate is movably arranged in a valve cavity formed between the valve cover and the valve seat and is arranged to block or open a communication channel between the through hole and the outlet.

Furthermore, a scraping mechanism is further arranged on the tank cover, and a push rod of the hydraulic cylinder penetrates through the scraping mechanism and is in sliding contact connection with the scraping mechanism.

Furthermore, the scraping mechanism comprises a scraping sleeve and a gland, the gland is installed on the tank cover, the scraping sleeve is fixed through the gland, and a push rod of the hydraulic cylinder penetrates through the scraping sleeve and is in sliding contact connection with the scraping sleeve.

Furthermore, the tank cover is provided with a mounting seat with a hole, the hydraulic cylinder is inversely installed on the mounting seat, a push rod of the hydraulic cylinder penetrates through the hole and extends into the tank body, and the gland is installed at the bottom of the hole through threads and fixes the scraping sleeve in the hole.

Further, the scraping sleeve is a sponge sleeve.

The invention has the following beneficial effects:

1. according to the invention, the filtering capacity is improved by adopting a multi-stage filtering mode, each stage of filtering is pressure filtration, the passing speed of materials is improved by utilizing larger pressure provided by the piston, so that the filtering efficiency is improved, and meanwhile, the filtering capacity can be improved by improving the mesh number of the filter screen.

2. The invention adopts a pressure detection mode to obtain the content of the filtered impurities, thereby being beneficial to removing the impurities in time and maintaining the higher filtering performance of the filter screen.

3. According to the invention, the filtered materials are discharged out of the tank body under the lifting of the piston, so that the emptying efficiency of the materials is improved.

Drawings

FIG. 1 is a perspective view of a preferred embodiment of the present invention;

FIG. 2 is a top view of the structure of the embodiment shown in FIG. 1;

FIG. 3 is a sectional view of the structure taken along line A-A in FIG. 2;

FIG. 4 is an enlarged view of a portion of FIG. 3 at I;

FIG. 5 is an enlarged view of a portion of FIG. 3 at II;

fig. 6 is a schematic diagram of the operation of the embodiment shown in fig. 1.

Detailed Description

The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in figures 1 to 6, a filter device for producing high base number calcium sulfonate-based lubricating grease comprises two filter units, wherein each filter unit comprises a tank body 1, the tank body 1 is a cylindrical structure, the top of the tank body 1 is open, a tank cover 2 is arranged at the open, a slag discharge port 1.3 is arranged at the bottom, a pressure gauge 5 and a slag discharge valve 4 are arranged at the position of the slag discharge port 1.3, a feed inlet 1.1 close to the bottom and a discharge outlet 1.2 close to the top are arranged on the tank body 1, a filter pressing mechanism with one-way passing capability is arranged in the tank body 1, the filter pressing mechanism is in dynamic sealing connection with the inner wall of the tank body 1, a hydraulic cylinder 3 and a displacement detector 7 are arranged on the tank cover 2, a push rod 3.1 of the hydraulic cylinder 3 is connected with the filter pressing mechanism, the feed inlet 1.1 of the previous filter unit is connected with a feed conveying pipe of a feeding device through a conveying pipe, a valve is arranged on the conveying pipe, the discharge outlet 1.2 of the next filter unit is connected with the feed inlet 1.1 of the next filter unit through another conveying pipe 8, the material conveying pipe 8 is provided with a check valve 6, the material outlet 1.2 of the next stage of filtering unit is connected with equipment of the next link through another material conveying pipe, and the material conveying pipe is provided with the check valve. The filter capacity of the filter unit is gradually enhanced along the material conveying direction, so that impurities left by the previous stage can be continuously filtered by the next stage, and the purity of the material is ensured. Meanwhile, the pressure of the filter pressing process is higher than that of the pump pressure, so that the mesh number of the filter screen can be higher to improve the filtering capacity, and in the embodiment, 100 meshes and 120 meshes can be respectively adopted to realize better filtering effect.

In an alternative embodiment, as shown in fig. 4, the filter press mechanism comprises a piston 9, a piston sleeve 11, a filter screen 13, a check valve 10 and a filter screen compression ring 12; the piston 9 is provided with four valve mounting holes 9.1 which are uniformly distributed along the circumference, the piston sleeve 11 is arranged on the outer circular surface of the piston 9, the upper end surface of the piston sleeve 11 is limited by a limiting boss of the piston 9, the filter screen press ring 12 is arranged at the bottom of the piston 9 through threaded connection and fixes the filter screen 13 between the piston and the filter screen press ring, and the end surface of the filter screen press ring 12 is limited to the lower end surface of the piston sleeve 11, so that the piston sleeve 11 is fixed on the outer circular surface of the piston 9. The check valves 10 are provided in four and are disposed in the valve mounting holes 9.1 in one-to-one correspondence.

In an alternative embodiment, as shown in fig. 4, the one-way valve 10 comprises a valve cover 10.1 having an outlet 10.4 and a valve seat 10.3 having a through hole 10.5, the valve seat 10.3 and the valve cover 10.1 are connected at a valve mounting hole 9.1, and the movable plate 10.2 is movably disposed in a valve chamber formed between the valve cover 10.1 and the valve seat 10.3 and is configured to block or open a communication passage between the through hole 10.5 and the outlet 10.4. When the piston 9 descends, the mineral base oil below the piston forms a pushing force on the bottom surface of the movable plate 10.2 so as to jack the piston upwards, the through hole 10.5 is communicated with the outlet 10.4, and the mineral base oil passes through the one-way valve 10 and comes to the position above the piston 9. When the piston 9 rises, the mineral base oil above the piston presses the top surface of the movable plate 10.2 to lower the piston, and the through hole 10.5 is covered by the movable plate 10.2 and cannot be communicated with the outlet 10.4, so that the mineral base oil is trapped above the piston 9.

As shown in fig. 5, since the push rod 3.1 is immersed in the mineral base oil during operation, a part of impurities still remain in the mineral base oil during the previous stage of filtration and are adhered to the push rod 3.1 with a certain probability, and in order to prevent the part of impurities from entering the hydraulic cylinder 3 after the push rod 3.1 retracts and causing adverse effects, the scraper mechanism is arranged to scrape off the mineral base oil on the outer circumferential surface of the push rod 3.1 when the push rod 3.1 retracts. In an alternative embodiment, the tank lid 2 is also provided with a scraping mechanism through which the ram 3.1 of the hydraulic cylinder 3 passes and is in sliding contact with it.

In an alternative embodiment, the scraping mechanism comprises a scraping sleeve 15 and a gland 14, the gland 14 is mounted on the tank cover 2, the scraping sleeve 15 is fixed by the gland 14, and the push rod 3.1 of the hydraulic cylinder 3 penetrates through the scraping sleeve 15 and is connected with the scraping sleeve in a sliding contact mode.

In an alternative embodiment, the lid 2 is provided with a mounting 2.1 with a hole, the hydraulic cylinder 3 is mounted upside down on the mounting 2.1, its push rod 3.1 extends into the tank 1 through the hole, the gland 14 is mounted at the bottom of the hole by screw thread and fixes the scraper sleeve 15 in the hole.

In an alternative embodiment, the scraper sleeve 15 is a sponge sleeve. The sponge is soft in texture, so that the normal extension and retraction of the push rod 3.1 are not influenced, and the push rod 3.1 cannot be scratched.

In an alternative embodiment, the displacement detector 7 is an ultrasonic detector and the pressure gauge 5 is an electronic pressure gauge.

As shown in figure 6, the mineral base oil is fed into the first stage of the filtering unit by the feeding device, then the hydraulic cylinder 3 of the stage operates to drive the piston 9 to descend, and the mineral base oil below reaches the upper part of the piston 9 through the filter screen to complete the first filtering. When the piston 9 descends to a certain height, the displacement detector 7 sends a signal, then the hydraulic cylinder 3 is controlled to stop extending and turn to retract, and the piston 9 ascends and inputs the filtered mineral base oil into the second stage filtering unit. When the piston 9 rises to a certain height, the displacement detector 7 signals again and then controls the hydraulic cylinder 3 to change the operating state again. It should be noted that the limit position of the downward movement of the piston 9 is above the feed port 1.1, and the limit position of the upward movement is below the discharge port 1.2. After the impurity in the filter unit is too much, filter screen filtration capacity descends, and the resistance that meets when piston 9 descends just can increase, and the pressure of piston 9 below can increase this moment, and after the pressure that pressure gauge 5 detected reached the default, it was too much to judge impurity and need clear up. At this time, the operation is stopped, and then the slag discharge valve 4 is opened to discharge the mineral base oil and the impurities below the piston 9.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", 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 the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the description of the present invention, "a plurality" means two or more unless otherwise specified. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a filtration equipment of high base number calcium sulfonate base lubricating grease production usefulness, a serial communication port, including two at least filter unit, filter unit is including jar body (1), the top of jar body (1) is uncovered and sets up cover (2) in uncovered department, and the bottom is provided with row cinder notch (1.3) and sets up pressure gauge (5) and scum valve (4) in row cinder notch (1.3) department, the ladle body of jar body (1) is provided with feed inlet (1.1) and discharge gate (1.2) that are close to the top that are close to the bottom, be provided with the filter-pressing mechanism that has one-way throughput capacity in jar body (1), filter-pressing mechanism with the inner wall of jar body (1) forms dynamic seal and connects, be provided with pneumatic cylinder (3) and displacement detector (7) on cover (2), push rod (3.1) of pneumatic cylinder (3) are connected filter-pressing mechanism, and feed inlet (1.2) that another filter unit was connected through conveying pipeline (8) to discharge gate (1.2) of one of filter unit (1), (4) are connected to filter-pressing mechanism 1.1), be provided with check valve (6) on conveying pipeline (8), the filter capacity of filter unit strengthens along material direction of delivery gradually.

2. The filtering equipment for producing the high-base-number calcium sulfonate-based lubricating grease is characterized in that the filter pressing mechanism comprises a piston (9), a piston sleeve (11), a filter screen (13), a one-way valve (10) and a filter screen compression ring (12); piston (9) are provided with valve mounting hole (9.1), piston cover (11) set up on the excircle face of piston (9), check valve (10) set up in valve mounting hole (9.1), filter screen clamping ring (12) are installed through threaded connection the bottom of piston (9) and fix between the two filter screen (13).

3. The filtering apparatus for producing high base number calcium sulfonate-based grease according to claim 2, wherein the one-way valve (10) comprises a movable plate (10.2) and a valve cover (10.1) having an outlet (10.4) and a valve seat (10.3) having a through hole (10.5), the valve seat (10.3) and the valve cover (10.1) are connected at the valve mounting hole (9.1), and the movable plate (10.2) is movably arranged in a valve cavity formed between the valve cover (10.1) and the valve seat (10.3) and is configured to block or open a communication passage of the through hole (10.5) and the outlet (10.4).

4. The filtering equipment for producing the high-base-number calcium sulfonate-based lubricating grease is characterized in that a scraping mechanism is further arranged on the tank cover (2), and a push rod (3.1) of the hydraulic cylinder (3) penetrates through the scraping mechanism and is connected with the scraping mechanism in a sliding contact mode.

5. The filtering apparatus for producing the high-base-number calcium sulfonate-based lubricating grease according to claim 4, wherein the scraping mechanism comprises a scraping sleeve (15) and a gland (14), the gland (14) is mounted on the tank cover (2), the scraping sleeve (15) is fixed through the gland (14), and the push rod (3.1) of the hydraulic cylinder (3) penetrates through the scraping sleeve (15) and is connected with the scraping sleeve in a sliding contact manner.

6. The filtering equipment for producing the high-base-number calcium sulfonate-based lubricating grease according to claim 5, characterized in that the tank cover (2) is provided with a mounting seat (2.1) with a hole, the hydraulic cylinder (3) is arranged on the mounting seat (2.1) in an inverted manner, a push rod (3.1) of the hydraulic cylinder penetrates through the hole and extends into the tank body (1), and the gland (14) is arranged at the bottom of the hole through threads and fixes the scraping sleeve (15) in the hole.

7. The filtering equipment for producing the high-base-number calcium sulfonate-based lubricating grease according to claim 5, wherein the scraping sleeve (15) is a sponge sleeve.