Filter discharge valve with impurity-containing melt discharge function

Abstract

The utility model discloses a filter blow-off valve with an impurity-containing melt discharge function, which comprises a main valve body and a feed valve pipe fixedly communicated with one end of the main valve body, the other end of the main valve body is fixedly communicated with a blow-off valve pipe, and the bottom end of the main valve body is fixedly communicated with an inclined T-shaped impurity discharge pipe. An inclined T-shaped impurity discharging pipe is arranged at the bottom of the main valve body, an inclined T-shaped heat preservation sleeve is fixedly arranged on the surface of the inclined T-shaped impurity discharging pipe, a pipe head frame is fixedly arranged at the bottom end of the inclined T-shaped impurity discharging pipe, and an end sealing cover is fixedly arranged at the bottom end of the pipe head frame through a bolt. The valve element assembly is installed, the filter valve plate is arranged in the main valve body, the melt impurity intercepting function is achieved, the valve element assembly is used for controlling on-off of the inclined T-shaped impurity discharging pipe, discharging and cleaning of melt containing impurities can be achieved, dredging and cleaning of the valve body are facilitated, the valve body is not prone to being blocked, later cleaning and maintenance are convenient, installation and use are convenient, and discharging is smooth.

Description

Technical Field

[0001] The utility model relates to the technical field of melt filters, in particular to a filter discharge valve with the function of discharging melt containing impurities. Background Art

[0002] Melt filter is a device used to filter impurities or solid particles in the melt, and is widely used in the production and processing of high molecular polymers. A discharge valve is usually installed at the discharge port of the melt filter to control the on and off of the melt after filtration. Currently, the common filter discharge valve mainly consists of three components: valve body, feed pipe and discharge pipe. The valve body is mainly a stop valve, and the on and off of the melt is achieved through a valve plug or valve plate. The above common types of melt filter discharge valves have the following shortcomings in actual applications:

[0003] After the melt is filtered, there are still a certain amount of microparticles inside the melt. The valve body has a valve plug or valve plate with a relatively complex structure. These microparticles flow in the valve body and easily cause blockage of the valve body. The valve body does not have the function of filtering and discharging impurities. Utility Model Content

[0004] The utility model aims to provide a filter discharge valve with the function of discharging melt containing impurities, so as to solve the problem that the existing discharge valve mentioned in the above background technology does not have the impurity filtering and discharging function.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a filter discharge valve with a function of discharging melt containing impurities, comprising a main valve body and a feed valve pipe fixedly connected to one end of the main valve body, the other end of the main valve body is fixedly connected to a discharge valve pipe, the bottom end of the main valve body is fixedly connected to an inclined T-shaped discharge pipe, the surface of the inclined T-shaped discharge pipe is fixedly provided with an inclined T-shaped insulation sleeve, the bottom end of the inclined T-shaped discharge pipe is fixedly provided with a pipe head frame, the bottom end of the pipe head frame is fixedly provided with an end sealing cover fixedly provided with bolts, the end sealing cover is provided with a valve core assembly for controlling the discharge of the impurity melt, the pipe head frame is fixedly provided with a connecting rod, the bottom end of the connecting rod is fixedly provided with a lower support plate, the bottom end of the lower support plate is rotatably provided with a threaded sleeve, the bottom end of the threaded sleeve is fixedly provided with a hand wheel, the front side of the main valve body is fixedly provided with an auxiliary cleaning assembly, and the interior of the main valve body is fixedly provided with a filter valve plate and an on-off valve body.

[0006] Preferably, the auxiliary cleaning component includes an internal thread cleaning channel and a sealing plug threadedly arranged on the internal thread cleaning channel, and a leak-proof rubber head is fixedly arranged on one end of the sealing plug, so as to facilitate cleaning and maintenance of the interior of the valve body.

[0007] Preferably, the valve core assembly includes a threaded valve stem and a plug fixedly arranged on the top of the threaded valve stem, the plug is slidably arranged inside the inclined T-shaped impurity discharge pipe, and the bottom end of the threaded valve stem is threadedly connected to the threaded sleeve through the lower support plate; the discharge of the melt containing impurities is smooth and stable, and the cleaning of the valve body is convenient.

[0008] Preferably, a packing seal ring is fixedly provided at the connection between the end seal cover and the pipe head frame, and the threaded valve stem is slidably provided on the end seal cover; the sealing effect is remarkable.

[0009] Preferably, a support frame is fixedly arranged between the discharge valve pipe and the inclined T-shaped insulation sleeve; the inclined T-shaped insulation sleeve has high stability.

[0010] Preferably, one end of the feed valve pipe and one end of the discharge valve pipe are both fixedly provided with a connecting flange, so as to facilitate the installation and disassembly of the discharge valve.

[0011] Preferably, a slag discharge flange is fixedly provided at one end of the inclined T-shaped impurity discharge pipe, which is convenient for connection and drainage of the slag discharge pipe and for easy assembly and use.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The discharge valve is provided with an inclined T-shaped discharge pipe at the bottom of the main valve body and a valve core assembly is installed. The main valve body has a built-in filter valve plate, which has the function of intercepting melt impurities. The on and off of the inclined T-shaped discharge pipe is controlled by the valve core assembly, so that the melt containing impurities can be discharged and cleaned, which is convenient for unblocking and cleaning the valve body and is not prone to valve body blockage. The subsequent cleaning and maintenance is convenient and efficient, the installation and use are easy, and the discharge is smooth and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the filter discharge valve of the utility model;

[0015] Figure 2 It is a front cross-sectional view of the filter discharge valve of the utility model;

[0016] Figure 3 It is a top cross-sectional view of the main valve body of the utility model;

[0017] Figure 4 It is an enlarged view of part A of the utility model.

[0018] In the figure: 1. main valve body; 2. feed valve pipe; 3. discharge valve pipe; 4. connecting flange; 5. inclined T-type insulation sleeve; 6. pipe head frame; 7. end cover; 8. slag discharge flange; 9. support frame; 10. inclined T-type discharge pipe; 11. threaded valve stem; 12. connecting support rod; 13. lower support plate; 14. hand wheel; 15. threaded sleeve; 16. internal thread cleaning channel; 17. sealing plug; 18. filter valve plate; 19. packing seal ring; 20. plugging plug; 21. anti-leakage rubber head; 22. on-off valve body. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] See also Figure 1-4 The utility model provides a filter discharge valve with the function of discharging impurity melt, comprising a main valve body 1 and a feed valve pipe 2 fixedly connected to one end of the main valve body 1, a discharge valve pipe 3 fixedly connected to the other end of the main valve body 1, an inclined T-shaped impurity discharge pipe 10 fixedly connected to the bottom end of the main valve body 1, an inclined T-shaped insulation sleeve 5 fixedly arranged on the surface of the inclined T-shaped impurity discharge pipe 10, a pipe head frame 6 fixedly arranged on the bottom end of the inclined T-shaped impurity discharge pipe 10, an end cover 7 fixedly arranged on the bottom end of the pipe head frame 6 by bolts, a valve core assembly for controlling the discharge of impurity melt is installed on the end cover 7, a connecting support rod 12 is fixedly arranged on the pipe head frame 6, a lower support plate 13 is fixedly arranged on the bottom end of the connecting support rod 12, a threaded sleeve 15 is rotatably arranged on the bottom end of the lower support plate 13, a hand wheel 14 is fixedly arranged on the bottom end of the threaded sleeve 15, an auxiliary cleaning assembly is fixedly installed on the front of the main valve body 1, and a filter valve plate 18 and an on-off valve body 22 are fixedly arranged inside the main valve body 1;

[0021] When in use, the feed valve tube 2 is connected to the outlet of the melt filter, and the discharge valve tube 3 is connected to the external melt diversion pipeline. The melt discharged from the melt filter will enter the main valve body 1 through the feed valve tube 2. After being intercepted by the filter valve plate 18, the melt will enter the diversion pipeline through the discharge valve tube 3. The on-off valve body 22 is used to control the on-off of the fluid to realize the discharge of the melt.

[0022] See also Figure 1 and Figure 3 , further, the auxiliary cleaning assembly includes an internal thread cleaning channel 16 and a sealing plug 17 threadedly arranged on the internal thread cleaning channel 16, and a leak-proof rubber head 21 is fixedly arranged at one end of the sealing plug 17;

[0023] During use, the staff periodically closes the melt filter and removes the sealing plug 17 from the internal thread cleaning channel 16 by screwing, and then cleans the interior of the main valve body 1 through the internal thread cleaning channel 16, which is convenient for cleaning and maintenance.

[0024] See also Figure 1 , Figure 2 and Figure 4 Further, the valve core assembly includes a threaded valve stem 11 and a plugging plug 20 fixedly arranged at the top of the threaded valve stem 11, the plugging plug 20 is slidably arranged inside the inclined T-shaped impurity discharge pipe 10, the bottom end of the threaded valve stem 11 passes through the lower support plate 13 and is threadedly connected to the threaded sleeve 15, a packing seal ring 19 is fixedly arranged at the connection between the end seal cover 7 and the pipe head frame 6, and the threaded valve stem 11 is slidably arranged on the end seal cover 7;

[0025] During use, when it is necessary to discharge the melt containing impurities, the hand wheel 14 is turned to drive the threaded sleeve 15 to rotate, thereby driving the threaded valve stem 11 to slide up and down on the lower support plate 13, thereby moving the blocking plug 20 downward. At this time, the inclined T-shaped impurity discharge pipe 10 is connected to the main valve body 1, and the melt containing impurities will be discharged along the inclined T-shaped impurity discharge pipe 10 under the action of gravity.

[0026] See also Figure 1 and Figure 2 Furthermore, a support frame 9 is fixedly provided between the discharge valve pipe 3 and the inclined T-shaped insulation sleeve 5, a connecting flange 4 is fixedly provided at one end of the feed valve pipe 2 and one end of the discharge valve pipe 3, and a slag discharge flange 8 is fixedly provided at one end of the inclined T-shaped impurity discharge pipe 10.

[0027] When in use, the support frame 9 is used to increase the stability of the inclined T-shaped impurity discharge pipe 10, and the structural strength is high. The connecting flange 4 facilitates the assembly and disassembly of the valve body, and is easy to use.

[0028] When the embodiment of the present application is in use: the melt discharged from the melt filter will enter the main valve body 1 through the feed valve tube 2, and after being intercepted by the filter valve plate 18, the melt will enter the diversion pipe through the discharge valve tube 3, and the on-off of the fluid will be controlled by the on-off valve body 22. The on-off valve body 22 is a butterfly valve plate. The on-off and flow control are achieved by rotating the butterfly valve plate, and the discharge is smooth and stable.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A filter discharge valve with the function of discharging a melt containing impurities, comprising a main valve body (1) and a feed valve pipe (2) fixedly connected to one end of the main valve body (1), and a discharge valve pipe (3) fixedly connected to the other end of the main valve body (1), characterized in that: The bottom end of the main valve body (1) is fixedly connected to an inclined T-shaped impurity discharge pipe (10), the surface of the inclined T-shaped impurity discharge pipe (10) is fixedly provided with an inclined T-shaped insulation sleeve (5), the bottom end of the inclined T-shaped impurity discharge pipe (10) is fixedly provided with a pipe head frame (6), the bottom end of the pipe head frame (6) is fixedly provided with an end cover (7) by bolts, and a valve core assembly for controlling the discharge of impurity melt is installed on the end cover (7), a connecting support rod (12) is fixedly provided on the pipe head frame (6), the bottom end of the connecting support rod (12) is fixedly provided with a lower support plate (13), the bottom end of the lower support plate (13) is rotatably provided with a threaded sleeve (15), the bottom end of the threaded sleeve (15) is fixedly provided with a hand wheel (14), an auxiliary cleaning assembly is fixedly provided on the front of the main valve body (1), and a filter valve plate (18) and an on-off valve body (22) are fixedly provided inside the main valve body (1).

2. A filter discharge valve with the function of discharging melt containing impurities according to claim 1, characterized in that: The auxiliary cleaning component comprises an internal thread cleaning channel (16) and a sealing plug (17) threadedly arranged on the internal thread cleaning channel (16), and a leak-proof rubber head (21) is fixedly arranged at one end of the sealing plug (17).

3. The filter discharge valve with the function of discharging melt containing impurities according to claim 1, characterized in that: The valve core assembly includes a threaded valve stem (11) and a plug (20) fixedly arranged at the top end of the threaded valve stem (11); the plug (20) is slidably arranged inside the inclined T-shaped drainage pipe (10); the bottom end of the threaded valve stem (11) passes through the lower support plate (13) and is threadedly connected to the threaded sleeve (15).

4. A filter discharge valve with the function of discharging melt containing impurities according to claim 3, characterized in that: A packing seal ring (19) is fixedly provided at the connection between the end seal cover (7) and the pipe head frame (6), and the threaded valve stem (11) is slidably provided on the end seal cover (7).

5. The filter discharge valve with the function of discharging melt containing impurities according to claim 1, characterized in that: A support frame (9) is fixedly arranged between the discharge valve pipe (3) and the inclined T-shaped thermal insulation sleeve (5).

6. The filter discharge valve with the function of discharging melt containing impurities according to claim 1, characterized in that: One end of the feed valve pipe (2) and one end of the discharge valve pipe (3) are both fixedly provided with a connecting flange (4).

7. The filter discharge valve with the function of discharging melt containing impurities according to claim 1, characterized in that: A slag discharge flange (8) is fixedly provided at one end of the inclined T-shaped impurity discharge pipe (10).

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