Filtering device for regeneration and recovery of quenching liquid

Abstract

The utility model relates to the technical field of quenching liquid recovery, in particular to a filter device for regeneration and recovery of quenching liquid, which comprises a filtrate hopper with a filter pipe at the bottom, the top end of the filter pipe is communicated with an inner cavity of the filtrate hopper, and a first filter screen with a hemispherical structure is embedded in an inner cavity of the filter pipe. The periphery of the first filter screen is fixedly connected with the inner wall of the filter pipe. The filter overcomes the defects in the prior art, impurities which cannot penetrate through the first filter screen enter the dirt collecting pipe to be stored through the dirt discharging hole due to the matched arrangement of the first filter screen, the dirt collecting pipe, the backflow pipe, the sealing plug and other structures, and when the impurities in the dirt collecting cavity need to be cleaned, a user can rotate the sealing plug to open the sealing plug at the bottom end of the dirt collecting pipe, so that the impurities in the dirt collecting cavity can be cleaned. At the moment, impurities stored in the dirt collecting cavity can be discharged from the bottom end of the dirt collecting pipe, and the problems that although an existing filtering device can filter the quenching liquid, the impurities in the quenching liquid cannot be directly discharged after filtering, and use is inconvenient for a user are solved as much as possible.

Description

Technical Field

[0001] The utility model relates to the technical field of quenching liquid recovery, in particular to a filtering device for regenerating and recovering quenching liquid. Background Art

[0002] Some metal parts need to increase their surface hardness through quenching to improve the wear resistance and contact strength of the parts to meet their design requirements. The quenching liquid is used to accelerate the cooling of the austenitized metal and ensure that the austenite can be cooled at a rate exceeding the critical cooling rate to obtain a martensitic structure and achieve the purpose of quenching.

[0003] After searching, the utility model patent with announcement number CN203139765U proposes a quenching liquid recovery and filtering device, which includes: a filter tank, and a plurality of slots are sequentially arranged on the inner walls on both sides of the filter tank, and a filter net is detachably inserted in each slot.

[0004] Although the above-mentioned filtering device can filter the quenching liquid, it is not possible to directly discharge the impurities in the quenching liquid after filtering. The user needs to repeatedly clean the filter tank after filtering, which is inconvenient for the user to use. Utility Model Content

[0005] The utility model aims to solve or at least alleviate the problem that the existing filtering device can filter the quenching liquid but cannot directly discharge the impurities in the quenching liquid after filtering, which is inconvenient for users to use.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a filtering device for regenerating and recovering quenching liquid, comprising a filtrate bucket with a filter tube installed at the bottom, the top of the filter tube is connected to the inner cavity of the filtrate bucket, a first filter screen with a hemispherical structure is embedded in the inner cavity of the filter tube, the periphery of the first filter screen is fixedly connected to the inner wall of the filter tube, two sewage discharge holes are symmetrically provided on the side wall of the filter tube above the connection between the first filter screen and the filter tube, two sewage collecting pipes inclined downward are symmetrically installed on the outer wall of the filter tube, the sewage collecting pipes are connected to the inner cavity of the filter tube through the sewage discharge holes, a return pipe is fixedly connected to the lower surface of the middle section of the sewage collecting pipe, one end of the return pipe away from the sewage collecting pipe passes through the outer wall of the filter tube and is fixedly connected to the outer wall of the filter tube, a second filter screen is fixedly installed in the connecting end of the return pipe and the sewage collecting pipe, and a sealing plug is screwed on the bottom end of the sewage collecting pipe.

[0007] Optionally, the circumference of the top end of the filtrate bucket extends outward to form a flange of an annular structure, and a plurality of symmetrically distributed bolts are passed through the flange.

[0008] Optionally, a valve for controlling the recovery rate of the quenching liquid is installed at one end of the filter tube away from the filtrate bucket.

[0009] Optionally, an arc-shaped scraper which is in sliding contact with the first filter screen is provided on the upper surface of the first filter screen, a transmission shaft is fixedly connected to the center of the arc-shaped scraper, the bottom end of the transmission shaft passes through the first filter screen and is rotatably connected to the first filter screen, and an impeller is fixedly connected to one end of the transmission shaft located below the first filter screen.

[0010] Optionally, a bearing is installed at the connection between the transmission shaft and the first filter screen.

[0011] Optionally, the connections between the sewage collecting pipe and the return pipe and the filter pipe are all fixedly connected with reinforcement rings.

[0012] Optionally, a section of the inner cavity of the sewage collecting pipe below the second filter screen forms a sewage collecting cavity for storing impurities.

[0013] Optionally, a plurality of anti-slip grooves are provided on the circumferential side of the outer surface of the sealing plug, and the plurality of anti-slip grooves are evenly distributed around the outer side wall of the sealing plug.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] Through the coordinated arrangement of the first filter screen, the sewage collecting pipe, the reflux pipe and the sealing plug, impurities that cannot pass through the first filter screen enter the sewage collecting pipe through the sewage discharge hole and are stored. When it is necessary to clean the impurities in the sewage collecting chamber, the user can rotate the sealing plug to open the sealing plug at the bottom of the sewage collecting pipe. At this time, the impurities stored in the sewage collecting chamber can be discharged from the bottom of the sewage collecting pipe, thereby avoiding the problem that the existing filtering device can filter the quenching liquid but cannot directly discharge the impurities in the quenching liquid after filtration, which is inconvenient for users. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the installation structure of the transmission frame of the utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure between the pulverizing roller and the pulverizing motor of the utility model.

[0019] In the figure: 1, filtrate bucket; 2, flange; 3, bolt; 4, filter tube; 5, first filter screen; 6, sewage discharge hole; 7, sewage collecting pipe; 8, return pipe; 9, second filter screen; 10, sewage collecting chamber; 11, sealing plug; 12, valve; 13, arc scraper; 14, transmission shaft; 15, bearing; 16, impeller. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 A filtering device for regenerating and recovering quenching liquid comprises a filtrate bucket 1 with a filter tube 4 installed at the bottom, the top of the filter tube 4 is connected to the inner cavity of the filtrate bucket 1, and the filtrate bucket 1 is arranged at the top of the filter tube 4, so that the quenching liquid to be recovered and reused can be introduced into the filter tube 4 through the filtrate bucket 1 for filtration.

[0022] A first filter screen 5 with a hemispherical structure is embedded in the inner cavity of the filter tube 4. The circumference of the first filter screen 5 is fixedly connected to the inner wall of the filter tube 4. The first filter screen 5 is provided to filter impurities in the quenching liquid. The first filter screen 5 is provided with a hemispherical structure, which can avoid the accumulation of impurities above the first filter screen 5 and affect the filtering speed of the quenching liquid.

[0023] Two drainage holes 6 are symmetrically provided on the side wall of the filter tube 4 above the connection between the first filter screen 5 and the filter tube 4, and two downwardly inclined sewage collecting pipes 7 are symmetrically installed on the outer wall of the filter tube 4. The sewage collecting pipes 7 are connected with the inner cavity of the filter tube 4 through the drainage holes 6. Impurities in the quenching liquid cannot pass through the first filter screen 5, and slide through the drainage holes 6 into the sewage collecting pipes 7 under the action of their own gravity.

[0024] A return pipe 8 is fixedly connected to the lower surface of the middle section of the sewage collecting pipe 7. The end of the return pipe 8 away from the sewage collecting pipe 7 passes through the outer wall of the filter tube 4 and is fixedly connected to the outer wall of the filter tube 4. A second filter screen 9 is fixedly installed in the connecting end of the return pipe 8 and the sewage collecting pipe 7. Impurities entering the sewage collecting pipe 7 cannot pass through the second filter screen 9 and are retained in the inner cavity of the sewage collecting pipe 7. Part of the quenching liquid that enters the sewage collecting pipe 7 together with the impurities can flow back to the filter tube 4 through the return pipe 8, and is finally discharged through the bottom end of the filter tube 4 for reuse by the user.

[0025] A sealing plug 11 is screwed on the bottom end of the sewage collecting pipe 7. When the impurities collected in the sewage collecting pipe 7 need to be cleaned, the sealing plug 11 can be opened. At this time, the impurities retained in the sewage collecting pipe 7 are discharged through the bottom end of the sewage collecting pipe 7 under the action of their own gravity.

[0026] For details, please refer to Figure 1The top periphery of the filtrate bucket 1 extends outward to form a flange 2 of an annular structure, and a plurality of symmetrically distributed bolts 3 are penetrated on the flange 2. The flange 2 is provided on the top periphery of the filtrate bucket 1, and the bolts 3 are penetrated on the flange 2, so as to fix the filtrate bucket 1 on the external frame through the flange 2 and the bolts 3, so as to facilitate the use of the user.

[0027] For details, please refer to Figure 1 A valve 12 for controlling the recovery speed of the quenching liquid is installed at one end of the filter tube 4 away from the filtrate bucket 1. When filtering the quenching liquid, the user can control the filtering speed of the quenching liquid by controlling the opening size of the valve 12.

[0028] For details, please refer to Figure 2 and Figure 3 , an arc-shaped scraper 13 is provided on the upper surface of the first filter screen 5 in sliding contact with the first filter screen 5, a transmission shaft 14 is fixedly connected to the center of the arc-shaped scraper 13, the bottom end of the transmission shaft 14 passes through the first filter screen 5 and is rotatably connected to the first filter screen 5, and an impeller 16 is fixedly connected to one end of the transmission shaft 14 located below the first filter screen 5. When the quenching liquid passes through the first filter screen 5, it will impact the impeller 16 below to rotate, thereby driving the arc-shaped scraper 13 to rotate through the transmission shaft 14 fixedly connected to the impeller 16, scraping off the impurities adhering to the upper surface of the first filter screen 5, and avoiding the impurities from clogging the upper surface of the first filter screen 5 as much as possible.

[0029] For details, please refer to Figure 3 A bearing 15 is installed at the connection between the transmission shaft 14 and the first filter screen 5. The bearing 15 is provided to reduce the resistance effect when the transmission shaft 14 rotates, so that the impeller 16 drives the arc scraper 13 to rotate through the transmission shaft 14.

[0030] For details, please refer to Figure 1 The connection between the sewage collecting pipe 7 and the return pipe 8 and the filter pipe 4 is fixedly connected with a reinforcement ring. The reinforcement ring is used to reinforce the connection between the sewage collecting pipe 7, the return pipe 8 and the filter pipe 4, which greatly improves the stability of the installation of the sewage collecting pipe 7 and the return pipe 8.

[0031] Specifically, refer to Figure 1 The inner cavity of the sewage collecting pipe 7 below the second filter screen 9 forms a sewage collecting cavity 10 for storing impurities. The impurities entering the sewage collecting pipe 7 cannot pass through the second filter screen 9, and the density of the impurities is relatively large, so they can be precipitated in the sewage collecting cavity 10, thereby collecting the impurities in the quenching liquid.

[0032] Specifically, refer to Figure 1The outer surface of the sealing plug 11 is provided with a plurality of anti-skid grooves, which are evenly distributed around the outer wall of the sealing plug 11. The anti-skid grooves are provided on the outer surface of the sealing plug 11 to increase the friction between the sealing plug 11 and the user's fingers, so that the user can rotate the sealing plug 11 and install and remove the sealing plug 11 conveniently.

[0033] Working principle: When in use, the user first introduces the quenching liquid to be recycled into the filter tube 4 through the filtrate bucket 1. The impurities in the quenching liquid cannot pass through the first filter screen 5. Under the impact of its own gravity and the quenching liquid flowing down from above, the impurities enter the inner cavity of the sewage collecting pipe 7 through the sewage discharge hole 6. Since the second filter screen 9 is provided at the connection between the sewage collecting pipe 7 and the return pipe 8, the impurities cannot pass through the second filter screen 9 and are retained in the sewage collecting cavity 10. The small amount of quenching liquid that enters the sewage collecting pipe 7 with the impurities passes through the second filter screen again. The filter screen 9 flows back into the filter tube 4, merges with the quenching liquid filtered by the first filter screen 5, and is finally discharged from the bottom end of the filter tube 4 to filter the quenching liquid. When it is necessary to clean the impurities in the sewage collecting chamber 10, the user can rotate the sealing plug 11 to open the sealing plug 11. At this time, the impurities stored in the sewage collecting chamber 10 can be discharged from the bottom end of the sewage collecting pipe 7, thereby avoiding the problem that the existing filtering device can filter the quenching liquid but cannot directly discharge the impurities in the quenching liquid after filtering, which is inconvenient for users to use.

[0034] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0035] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A filtering device for regenerating and recovering quenching liquid, comprising a filtrate hopper (1) with a filter tube (4) installed at the bottom, the top of the filter tube (4) is connected to the inner cavity of the filtrate hopper (1), a first filter screen (5) with a hemispherical structure is embedded in the inner cavity of the filter tube (4), and the circumference of the first filter screen (5) is fixedly connected to the inner wall of the filter tube (4), characterized in that: Two sewage discharge holes (6) are symmetrically provided on the side wall of the filter tube (4) above the connection between the first filter screen (5) and the filter tube (4); two sewage collecting pipes (7) inclined downward are symmetrically installed on the outer wall of the filter tube (4); the sewage collecting pipe (7) is connected with the inner cavity of the filter tube (4) through the sewage discharge holes (6); a return pipe (8) is fixedly connected to the lower surface of the middle section of the sewage collecting pipe (7); one end of the return pipe (8) away from the sewage collecting pipe (7) passes through the outer wall of the filter tube (4) and is fixedly connected to the outer wall of the filter tube (4); a second filter screen (9) is fixedly installed in the connection end between the return pipe (8) and the sewage collecting pipe (7); and a sealing plug (11) is screwed on the bottom end of the sewage collecting pipe (7).

2. The filtering device for regenerating and recovering quenching liquid according to claim 1, characterized in that: The top circumference of the filtrate bucket (1) extends outward to form a flange (2) of an annular structure, and a plurality of symmetrically distributed bolts (3) are passed through the flange (2).

3. The filtering device for regenerating and recovering quenching liquid according to claim 1, characterized in that: A valve (12) for controlling the recovery rate of the quenching liquid is installed at one end of the filter tube (4) away from the filtrate bucket (1).

4. The filtering device for regenerating and recovering quenching liquid according to claim 1, characterized in that: An arc-shaped scraper (13) is provided on the upper surface of the first filter screen (5) and is in sliding contact with the first filter screen (5); a transmission shaft (14) is fixedly connected to the center of the arc-shaped scraper (13); the bottom end of the transmission shaft (14) passes through the first filter screen (5) and is rotatably connected to the first filter screen (5); an impeller (16) is fixedly connected to one end of the transmission shaft (14) located below the first filter screen (5).

5. The filtering device for regenerating and recovering quenching liquid according to claim 4, characterized in that: A bearing (15) is installed at the connection between the transmission shaft (14) and the first filter screen (5).

6. The filtering device for regenerating and recovering quenching liquid according to claim 5, characterized in that: The connection points between the sewage collecting pipe (7) and the return pipe (8) and the filter pipe (4) are all fixedly connected with reinforcement rings.

7. The filtering device for regenerating and recovering quenching liquid according to claim 1, characterized in that: A section of the inner cavity of the sewage collecting pipe (7) located below the second filter screen (9) forms a sewage collecting cavity (10) for storing impurities.

8. The filtering device for regenerating and recovering quenching liquid according to claim 1, characterized in that: A plurality of anti-slip grooves are provided on the peripheral side of the outer surface of the sealing plug (11), and the plurality of anti-slip grooves are evenly distributed around the outer side wall of the sealing plug (11).

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