Filter and filtering system in front of steelmaking continuous casting machine

Abstract

The utility model relates to the technical field of filtering, and provides a filter and a filtering system in front of a steelmaking continuous casting machine. The steel-making continuous casting machine front filter comprises a shell assembly and a shell assembly, a first cavity and a second cavity are formed in the shell assembly, the shell assembly is provided with a first connector and a second connector, the first connector is communicated with the second cavity, and the second connector is communicated with the first cavity; a third cavity is formed in the filter element, one side of the third cavity is communicated with the first connector through the filter tank, and the other side of the third cavity is communicated with the second connector; in the stretching state, the contact area of the filter tank and the first cavity is a first area; in the compaction state, the contact area of the filter tank and the first cavity is a second area; the first area is larger than the second area. The filter in front of the steelmaking continuous casting machine and the filtering system overcome the defects that the filter in front of the steelmaking continuous casting machine in the prior art is easy to block and difficult to clean in the using process, and the filter in front of the steelmaking continuous casting machine and the filtering system which are convenient for cleaning blockages are realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter technology field especially relates to a kind of steelmaking continuous casting machine front filter and filter system. BACKGROUND

[0002] The main role of the filter system in front of the steelmaking continuous casting machine is to filter the two cooling water before entering the continuous casting machine nozzle, to prevent the nozzle from being blocked and affecting the cooling mechanism of the continuous casting machine, and to affect the quality of the billet. The steelmaking continuous casting machine front filter is the main body of its filter system. The existing steelmaking continuous casting machine front filter is prone to blockage and difficult to clean during use, thereby affecting the normal production and product quality of the steelmaking continuous casting machine. SUMMARY

[0003] The utility model provides a kind of steelmaking continuous casting machine front filter and filter system to solve the defect that the steelmaking continuous casting machine front filter in prior art is prone to blockage and difficult to clean during use, realize a kind of steelmaking continuous casting machine front filter and filter system that can clean the blockage.

[0004] The utility model provides a kind of steelmaking continuous casting machine front filter, comprising:

[0005] The shell assembly has a first cavity and a second cavity inside, the shell assembly is provided with a first interface and a second interface, the first interface is communicated with the second cavity, and the second interface is communicated with the first cavity;

[0006] The filter core has a third cavity inside, the filter core is arranged inside the first cavity, the side wall of the filter core is provided with a plurality of filter grooves, one side of the third cavity is communicated with the first interface through the filter groove, and the other side of the third cavity is communicated with the second interface;

[0007] Wherein, the filter core is used to switch between the relaxed state and the compacted state, the contact area of the filter groove and the first cavity is first area in the relaxed state;The contact area of the filter groove and the first cavity is second area in the compacted state;The first area is greater than the second area.

[0008] According to the steelmaking continuous casting machine front filter provided by the utility model, the filter core includes a spiral structure, and the spiral structure has a plurality of sequentially connected coil layers;

[0009] In the relaxed state, there is a gap between the adjacent two coil layers, and in the compacted state, the adjacent two coil layers are in contact.

[0010] At least part of the surface of the coil layer has a plurality of filter grooves.

[0011] The utility model provides a kind of steelmaking continuous casting machine front filter further comprising:

[0012] Limiting assembly is located in the inside of the first cavity, the inside of the limiting assembly has limiting space, the filter core is located in the limiting space, the bottom of the limiting assembly is equipped with opening;

[0013] Baffle seat is located in the inside of the first cavity, and is connected with the bottom of the limiting assembly, the baffle seat is used to fix the limiting assembly, the second cavity is located in the inside of the baffle seat;

[0014] Reset component is located in the limiting space, and one end of the reset component is in abutment with the top end of the limiting assembly, and the other end is in abutment with the top end of the filter core, and the reset component is used to maintain the filter core in the compacted state;

[0015] Valve seat is equipped in the opening, the valve seat has first flow channel and second flow channel, the second flow channel is equipped in the outside of the first flow channel, and the respective two ends of the first flow channel and the second flow channel are communicated with the third cavity and the second cavity respectively;

[0016] Backwash valve, the first end of the backwash valve is connected with the reset component, the second end of the backwash valve is equipped in the first flow channel, and the backwash valve is used to switch between first position and second position;In the first position, the filter core is in the relaxed state, and the second end of the backwash valve is blocked in the first flow channel;In the second position, the filter core is maintained in the compacted state, and the second end of the backwash valve cancels the blockage of the first flow channel.

[0017] According to the utility model provides a kind of steelmaking continuous casting machine front filter, the limiting assembly includes:

[0018] Pressing cover, detachably equipped in the top of the shell assembly, is used to seal the top of the shell assembly;

[0019] Multiple limiting rods, pass through the pressing cover and the top of the shell assembly, multiple the limiting rods are closed and spaced apart, the middle of multiple the limiting rods constitutes the limiting space, and the bottom of multiple the limiting rods is detachably connected with the baffle seat.

[0020] According to the utility model provides a kind of steelmaking continuous casting machine front filter, the baffle seat includes:

[0021] Fixed ring, the bottom end of the limiting rod is connected to the fixed ring;

[0022] Baffle cylinder is equipped in the bottom of the fixed ring, the bottom of the baffle cylinder is sealingly connected with the bottom of the shell assembly, and the inside of the baffle cylinder constitutes the second cavity.

[0023] A plurality of connecting pieces are arranged at intervals on the outer periphery of the fixing ring, and the connecting pieces are connected to the inner wall of the shell assembly away from the side of the fixing ring.

[0024] According to the steelmaking continuous casting machine front filter, the reset assembly comprises:

[0025] An upper cover is arranged on the top of the limiting assembly.

[0026] An elastic piece is movably arranged in the interior of the upper cover.

[0027] A lower cover is abutted against the filter core at one end and abutted against the elastic piece at the other end, and the backwashing valve is connected to the lower cover.

[0028] According to the steelmaking continuous casting machine front filter, the valve seat comprises:

[0029] A valve sleeve, and the first flow channel is located in the interior of the valve sleeve.

[0030] A valve outer sleeve is arranged on the outer periphery of the valve sleeve and is provided with a gap between the valve sleeve.

[0031] A plurality of fan blades are arranged at intervals in a vortex shape between the valve sleeve and the valve outer sleeve, and the second flow channel is formed between adjacent two fan blades.

[0032] According to the steelmaking continuous casting machine front filter, the backwashing valve comprises:

[0033] A valve body is movably arranged in the interior of the valve sleeve and is located above the first interface.

[0034] A limiting portion is arranged in the middle of the valve body and is arranged at intervals with the valve body.

[0035] A plurality of rib plates are arranged between the valve body and the limiting portion, and a water passing gap is arranged between the plurality of rib plates.

[0036] A blind plate is arranged at the bottom of the valve body, and in the first position, the blind plate is blocked at the bottom of the valve sleeve.

[0037] A plurality of water passing holes are arranged at intervals on the side wall of the valve body.

[0038] An adjusting rod, the first end of the adjusting rod is connected to the limiting portion, and the second end of the adjusting rod is connected to the lower cover.

[0039] The utility model provides a kind of steelmaking continuous casting machine front filter further comprising backflushing component, the backflushing component is equipped with multiple spray heads, multiple the spray head is connected by gas ring in series, the gas ring is connected with intake pipe, the intake pipe is connected with blast system;Multiple the spray head is used to form vortex at the top of the partitioning cylinder.

[0040] The utility model further provides a kind of filtering system, comprising:

[0041] Water inlet main pipeline is equipped with first water valve;

[0042] Drainage main pipeline is equipped with second water valve;

[0043] Water production main pipeline is equipped with third water valve, the water inlet main pipeline, the drainage main pipeline and the water production main pipeline are arranged mutually side by side;

[0044] Multiple the steelmaking continuous casting machine front filter described in any one of the above embodiments, multiple the steelmaking continuous casting machine front filter is arranged side by side, the steelmaking continuous casting machine front filter is communicated by second interface and the water inlet main pipeline and the drainage main pipeline, the steelmaking continuous casting machine front filter is communicated with the water production main pipeline by the first interface.

[0045] The steelmaking continuous casting machine front filter provided by the utility model, when needing to filter, can adjust filter core to compacted state, so that the area of filter tank and first cavity becomes smaller, so that the density of filtration can be increased, so that filtering can be better carried out.When needing to clean filter core, filter core can be adjusted to relaxed state, so that filter tank can be better exposed in the inside of first cavity, so that the filter material retained on filter tank can be better cleaned.So when needing to clean filter core, filter core does not need to be disassembled for separate cleaning, and only needs to adjust the state of filter core to clean it in the inside of shell assembly, so that the convenience of filter core cleaning is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0046] In order to more clearly illustrate the technical scheme in the utility model or prior art, the following will be a simple introduction to the drawings needed to be used in embodiment or prior art description, obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained without creative labor according to these drawings.

[0047] Figure 1 It is the sectional view of the steelmaking continuous casting machine front filter provided by the utility model.

[0048] Figure 2 It is the top view of the filter core of the steelmaking continuous casting machine front filter provided by the utility model.

[0049] Figure 3 is the sectional view of the partition seat of the steelmaking continuous casting machine front filter provided by the utility model.

[0050] Figure 4 is the plan view of the partition seat of the steelmaking continuous casting machine front filter provided by the utility model.

[0051] Figure 5 is the structure schematic view of the reset assembly of the steelmaking continuous casting machine front filter provided by the utility model.

[0052] Figure 6 is one of the local structure schematic views of the steelmaking continuous casting machine front filter provided by the utility model.

[0053] Figure 7 is the second local structure schematic view of the steelmaking continuous casting machine front filter provided by the utility model.

[0054] Figure 8 is the sectional view of the valve seat of the steelmaking continuous casting machine front filter provided by the utility model.

[0055] Figure 9 is the plan view of the valve seat of the steelmaking continuous casting machine front filter provided by the utility model.

[0056] Figure 10 is the sectional view of the backwash valve of the steelmaking continuous casting machine front filter provided by the utility model.

[0057] Figure 11 is the plan view of the backwash valve of the steelmaking continuous casting machine front filter provided by the utility model.

[0058] Figure 12 is the sectional view of the cover body of the steelmaking continuous casting machine front filter provided by the utility model.

[0059] Figure 13 is the plan view of the cover body of the steelmaking continuous casting machine front filter provided by the utility model.

[0060] Figure 14 is the structure schematic view of the first perspective of the filter system provided by the utility model.

[0061] Figure 15 is the structure schematic view of the second perspective of the filter system provided by the utility model.

[0062] Reference signs:

[0063] 100: housing assembly; 110: first cavity; 120: filter housing; 130: second cavity; 140: first interface; 150: second interface; 160: interface seat; 161: cover body; 162: protruding part; 163: sealing ring; 164: limiting hole; 165: fixing hole; 170: water inlet mother pipeline; 171: first water valve; 180: water discharge mother pipeline; 181: second water valve; 190: water production mother pipeline; 191: third water valve;

[0064] 200: filter core; 210: third cavity; 220: filter groove;

[0065] 300: reset assembly; 310: upper cover; 320: elastic piece; 330: lower cover; 340: clamping spring;

[0066] 400: driving assembly; 410: cylinder support; 420: cylinder; 430: control system; 431: forming controller; 432: air guide pipeline; 433: five-position three-way electromagnetic valve; 434: air source triad; 435: first air valve; 436: second air valve; 437: differential pressure transmitter;

[0067] 500: valve seat; 510: valve sleeve; 520: valve outer sleeve; 530: fan blade;

[0068] 600: backwashing valve; 610: valve body; 620: limiting part; 630: rib plate; 640: blind plate; 650: water passing hole; 660: adjusting rod;

[0069] 700: partition seat; 710: partition cylinder; 720: fixing ring; 730: connecting piece;

[0070] 800: back flushing assembly; 810: air inlet pipe; 820: air conveying ring; 830: spray head;

[0071] 900: limiting assembly; 910: gland; 920: limiting rod. DETAILED DESCRIPTION

[0072] The embodiments of the present application will be further described in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0073] In the description of the embodiments of the utility model, it needs to be explained that, the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the utility model and simplifying the description, and therefore cannot be understood as limiting the embodiments of the utility model by indicating or implying that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation and be operated, and therefore cannot be understood as limiting the embodiments of the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0074] In the description of the embodiments of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the embodiments of the utility model can be understood according to the specific circumstances.

[0075] In the embodiments of the utility model, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0076] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0077] The following will be combined Figures 1-15 The structure and working principle of the utility model are described.

[0078] Referring to Figure 1 The steelmaking continuous casting machine front filter provided by the utility model comprises a shell assembly 100 and a filter core 200, the inside of the shell assembly 100 is provided with a first cavity 110 and a second cavity 130, the shell assembly 100 is provided with a first interface 140 and a second interface 150, the first interface 140 is communicated with the second cavity 130, and the second interface 150 is communicated with the first cavity 110; the inside of the filter core 200 is provided with a third cavity 210, the filter core 200 is arranged in the inside of the first cavity 110, the side wall of the filter core 200 is provided with a plurality of filter grooves 220, one side of the third cavity 210 is communicated with the first interface 140 through the filter grooves 220, and the other side of the third cavity 210 is communicated with the second interface 150; wherein the filter core 200 is used for switching between an expanded state and a compacted state, in the expanded state, the contact area of the filter grooves 220 and the first cavity 110 is a first area; in the compacted state, the contact area of the filter grooves 220 and the first cavity 110 is a second area; the first area is larger than the second area.

[0079] In the above structure, when filtration is needed, the filter core 200 can be adjusted to the compacted state, so that the area of the filter grooves 220 and the first cavity 110 is reduced, so that the filtration density is increased, and the filtration is better. When the filter core 200 needs to be cleaned, the filter core 200 can be adjusted to the expanded state, so that the filter grooves 220 are better exposed in the inside of the first cavity 110, so that the filter residues retained on the filter grooves 220 are better cleaned. In this way, when the filter core 200 needs to be cleaned, the filter core 200 does not need to be disassembled and cleaned separately, but only needs to be adjusted to the state, so that the filter core 200 can be cleaned in the inside of the shell assembly 100, and the convenience of cleaning the filter core 200 is greatly improved.

[0080] Specifically, when filtration is needed, the filter core 200 is first adjusted to the compact state. After the water to be filtered enters the first cavity 110 through the second interface 150, it enters the third cavity 210 inside the filter core 200 after being filtered by the filter grooves 220 on the side wall of the filter core 200. When passing through the filter grooves 220, the water to be filtered can be filtered due to the small gaps of the filter grooves 220. The filtered clean water then enters the first interface 140 inside the second cavity 130 and is then discharged through the first interface 140. When the filter core 200 needs to be cleaned, the valve of the water to be filtered is first closed to stop the supply of the water to be filtered. Then the filter core 200 is adjusted to the relaxed state, and clean water is then flushed into the second cavity 130 through the first interface 140. The clean water flows from the second cavity 130 to the third cavity 210 inside the filter core 200. Since the filter core 200 is in the relaxed state at this time, the contact area of the filter grooves 220 with the first cavity 110, i.e., the flushing area of the clean water, is increased, effectively flushing away the filter residues retained in the filter grooves 220, and the flushed filter residues are discharged with the clean water from the second interface 150.

[0081] With reference to Figure 1 And Figure 2 In some embodiments of the present application, the filter core 200 adopts a spiral structure design, which is composed of a plurality of sequentially connected layers. When the filter core 200 is in the relaxed state, there is a certain gap between the adjacent two layers; and when the filter core 200 is compressed to the compact state, the layers are in close contact with each other. The surface of at least part of the layers is provided with a plurality of filter grooves 220 for filtering impurities in the fluid.

[0082] The design of the filter core 200 is similar to that of a spring, but unlike ordinary springs, the upper and lower surfaces of each layer of the filter core 200 are flat. In addition, the filter core 200 is made of elastic material. This design allows the adjacent layers to be flatly attached together when pressure is applied to the filter core, thereby achieving a compact state. When the external pressure is removed, the filter core 200 can restore to the original relaxed state by relying on its own elasticity, so that the filter grooves 220 between the layers are fully exposed to the first cavity 110. This not only helps to improve the filtering efficiency, but also facilitates the removal of filter residues blocked in the filter grooves 220.

[0083] With reference to Figure 1In some embodiments of the utility model, the steelmaking continuous casting machine front filter further includes reset assembly 300, valve seat 500, backwash valve 600, partition seat 700 and limiting assembly 900. Wherein, limiting assembly 900 is detachably arranged in the interior of first cavity 110, and the interior of limiting assembly 900 has limiting space, and filter core 200 is located in the limiting space. Limiting space is mainly used for limiting filter core 200 in horizontal direction, prevents the movement of filter core 200 in horizontal direction, and limiting space also limits the movement of filter core 200 in vertical direction. The bottom of limiting assembly 900 is provided with opening, so as to facilitate the communication of filter core 200 and second cavity 130. Partition seat 700 is detachably or fixedly arranged in the interior of first cavity 110, and is detachably connected with the bottom of limiting assembly 900, so as to realize the fixation of the bottom of limiting assembly 900, and second cavity 130 is located in the interior of partition seat 700.

[0084] In some possible embodiments, the shell assembly 100 includes filter shell 120 and interface seat 160. Wherein, filter shell 120 is cylindrical structure, and the top and bottom thereof have openings. Since the top of reset assembly 300 is located at the opening of the top of first cavity 110, it can be closed. Interface seat 160 is detachably arranged at the opening of the bottom of filter shell 120 by bolt, to realize the closure of the opening of the bottom of filter shell 120. At the same time, first interface 140 is arranged at the bottom of interface seat 160, and second interface 150 is arranged at the side of interface seat 160.

[0085] Reset assembly 300 is arranged in the limiting space, and one end of reset assembly 300 abuts against the top end of limiting assembly 900, and the other end abuts against the top end of filter core 200, and reset assembly 300 is used for maintaining filter core 200 in compacted state; valve seat 500 is arranged in the opening, and valve seat 500 has first flow channel and second flow channel, and the second flow channel is arranged outside the first flow channel, and the two ends of the first flow channel and the second flow channel are respectively communicated with third cavity 210 and second cavity 130; the first end of backwash valve 600 is connected with reset assembly 300, and the second end of backwash valve 600 is arranged in the first flow channel, and backwash valve 600 is used for switching between first position and second position; in the first position, the first end of backwash valve 600 drives reset assembly 300 to move away from filter core 200, so that filter core 200 is adjusted from compacted state to relaxed state, and the second end of backwash valve 600 is blocked in the first flow channel; in the second position, filter core 200 is maintained in compacted state, and the second end of backwash valve 600 cancels the blockage of the first flow channel.

[0086] In the above structure, when the filter element 200 needs to be cleaned, clean water enters from the first interface 140, and under the action of water pressure, the backwashing valve 600 moves upward, that is, from the first position to the second position, at this time the backwashing valve 600 drives the reset assembly 300 away from the filter element 200, thereby providing space for the expansion of the filter element 200. In this process, the filter element 200 gradually adjusts from the compacted state to the expanded state. When the backwashing valve 600 moves to the second position, the filter element 200 is in the best expanded state. And the backwashing valve 600 blocks the first flow channel, at this time the clean water can only enter the inside of the third cavity 210 from the second flow channel.

[0087] With reference to Figure 1 In some embodiments of the present application, the limiting assembly 900 comprises a gland 910 and a plurality of limiting rods 920. The gland 910 is detachably arranged on the top of the shell assembly 100 and is used to seal the top of the shell assembly 100. The plurality of limiting rods 920 penetrate through the gland 910 and the top of the shell assembly 100. The plurality of limiting rods 920 are arranged in a closed manner and are spaced apart. The middle of the plurality of limiting rods 920 forms a limiting space. The bottom of the plurality of limiting rods 920 is detachably connected with the partition seat 700.

[0088] Specifically, the gland 910 is a plate-shaped structure and is adapted to the shape of the bottom opening of the filter shell 120, so as to block the bottom opening. The gland 910 is detachably arranged on the bottom of the filter shell 120 by bolts. The limiting rods 920 penetrate through the gland 910 and extend downward, so as to be connected with the partition seat 700. The limiting space surrounded by the plurality of limiting rods 920 is adapted to the shape of the filter element 200. When the filter element 200 is in a cylindrical structure, the plurality of limiting rods 920 are arranged in a circumferential array. The diameter of the limiting space is adapted to the outer diameter of the filter element 200, so as to avoid the filter element 200 from shaking left and right in the limiting space. The bottom of the limiting rod 920 is inserted into or threadedly connected with the partition seat 700, so as to realize the sealing of the bottom of the filter shell 120.

[0089] With reference to Figure 3 And Figure 4 In some embodiments of the present application, the partition seat 700 comprises a partition cylinder 710, a fixing ring 720 and a plurality of connecting pieces 730. The bottom end of the limiting rod 920 is connected to the fixing ring 720. The partition cylinder 710 is arranged at the bottom of the fixing ring 720. The bottom of the partition cylinder 710 is sealingly connected with the bottom of the shell assembly 100. The inside of the partition cylinder 710 forms the second cavity 130. The plurality of connecting pieces 730 are arranged at the outer periphery of the fixing ring 720 in a spaced apart manner. The side of the connecting piece 730 away from the fixing ring 720 is connected with the inner wall of the shell assembly 100.

[0090] Specifically, the partitioning cylinder 710 is in a cylindrical structure, the fixing ring 720 is in a circular ring structure, and the fixing ring 720 is fixedly installed at the top of the partitioning cylinder 710. The bottom of the fixing ring 720 is provided with a plurality of limiting holes for connecting with the bottom of the limiting rod 920, so as to fix the bottom of the limiting rod 920. The connecting piece 730 is in a plate structure, the outer side of which is conveniently arc-shaped and matched with the arc shape of the inner wall of the first cavity 110, so that the connecting piece 730 can be more closely connected with the inner wall of the first cavity 110.

[0091] With reference to Figures 5 to 7 In some embodiments of the present application, the reset assembly 300 comprises an upper cover 310, an elastic member 320 and a lower cover 330, the upper cover 310 is arranged at the top of the limiting assembly 900, the elastic member 320 is movably arranged inside the upper cover 310, and one end of the lower cover 330 is in abutment with the filter element 200 and the other end is in abutment with the elastic member 320. The backwashing valve 600 penetrates the lower cover 330 and is detachably connected with the lower cover 330 through the snap spring 340.

[0092] Specifically, the upper cover 310 is in an inverted U-shaped structure. The elastic member 320 can be in a structure of two semicylinders or in a cylindrical structure with a through hole in the middle. The size of the elastic member 320 is required to be such that it can be located inside the groove of the upper cover 310. The lower cover 330 is also in a cylindrical structure and is provided with an outer protrusion at the bottom, and the diameter of the outer protrusion is greater than that of the opening at the bottom of the upper cover 310, so that the lower cover 330 can be prevented from entering the inside of the upper cover 310 and the elastic member 320 can be limited in the inside of the upper cover 310. When the filter element 200 needs to be cleaned, under the impact of clean water, the backwashing valve 600 moves upward, thereby driving the lower cover 330 to move upward and pressing the elastic member 320, so as to provide space for the expansion of the filter element 200. Under the action of its own elasticity, the filter element 200 is adjusted to an expanded state. When filtering, since the liquid moves from top to bottom, the backwashing valve 600 moves downward, thereby canceling the force of the backwashing valve 600 on the lower cover 330. Under the action of the elastic member 320, the lower cover 330 is pressed downward, thereby pressing the filter element 200 and adjusting the filter element 200 to a compacted state.

[0093] It should be noted that in the above structure, the elasticity of the elastic member 320 is greater than the elasticity of the filter element 200. In other embodiments, the utility model also has a driving assembly 400, the driving assembly 400 includes a cylinder bracket 410, the cylinder bracket 410 is detachably arranged at the bottom of the gland 910, and the cylinder 420 is arranged on the cylinder bracket 410. The cylinder bracket 410 can move linearly, and the output shaft of the cylinder bracket 410 is connected with the backwashing valve 600, so that the backwashing valve 600 can be driven to move up and down, that is, the backwashing valve 600 can be switched between the first position and the second position. In this way, the backwashing valve 600 can be adjusted at any time. In addition, the driving assembly 400 is also provided with a control system 430, the control system 430 includes a controller 431, the controller 431 is connected with the driving shaft of the cylinder 420, so that the stroke of the cylinder 420 can be recorded. The control system 430 also includes a gas guide pipe 432, the gas guide pipe 432 is communicated with the cylinder 420 and is used for controlling the movement of the cylinder 420. The gas guide pipe 432 is provided with a five-way three-way electromagnetic valve 433 and a gas source three-way joint 434, wherein the five-way three-way electromagnetic valve 433 is used for controlling the flow direction of the gas flow in the gas guide pipe 432, and the gas source three-way joint 434 is used for gas pressure, so as to drive the work of the cylinder 420. The control system 430 also includes a differential pressure transmitter 437, which is used for detecting the pressure difference between the first interface 140 and the second interface 150. The differential pressure transmitter 437 is connected with the interiors of the first interface 140 and the second interface 150 through two channels, and a first gas valve 435 is arranged on each of the two channels. A second gas valve 436 is also arranged between the two channels. The differential pressure transmitter 437 is signal connected with the five-way three-way electromagnetic valve 433, so that the work of the cylinder 420 can be controlled according to the pressure difference.

[0094] With reference to Figure 8 And Figure 9 In some embodiments of the utility model, the valve seat 500 includes a valve sleeve 510, a valve outer sleeve 520 and a plurality of vanes 530, the first flow channel is located in the interior of the valve sleeve 510; the valve outer sleeve 520 is arranged on the outer periphery of the valve sleeve 510 and is provided with a gap between the valve sleeve 510; the plurality of vanes 530 are arranged in a spiral shape and are spaced apart between the valve sleeve 510 and the valve outer sleeve 520, and the second flow channel is formed between the adjacent two vanes 530.

[0095] When the filter element 200 needs to be cleaned, the first flow channel is in a closed state at this time, and the clean water can only enter from the second flow channel, and the second flow channel is formed between the plurality of vanes 530, and the plurality of vanes 530 are arranged in a spiral shape and are spaced apart between the valve sleeve 510 and the valve outer sleeve 520. Therefore, when the clean water passes through the second flow channel, the vortex is formed in the interior of the third cavity 210, and a greater scouring force can be formed, so that the filter element 200 can be washed more thoroughly.

[0096] With reference toFigure 10 And Figure 11 In some embodiments of the utility model, backwash valve 600 includes valve body 610, limiting portion 620 and multiple rib plates 630, blind plate 640, multiple water passing holes 650 and adjusting rod 660. Among them, valve body 610 is movably arranged in the inside of valve sleeve 510, and is located above first interface 140;Limiting portion 620 is arranged in the middle of valve body 610, and is spaced apart from valve body 610;Multiple rib plates 630 are arranged between valve body 610 and limiting portion 620, and water passing gap is arranged between multiple rib plates 630;Blind plate 640 is arranged at the bottom of valve body 610, and in the first position, blind plate 640 is blocked at the bottom of valve sleeve 510;Multiple water passing holes 650 are spaced apart in the side wall of valve body 610;The first end of adjusting rod 660 is connected with limiting portion 620, and the second end of adjusting rod 660 is connected with lower cover 330.

[0097] Specifically, valve body 610 is cylindrical structure, and the size of valve body 610 is matched with the size of valve sleeve 510, so that valve body 610 can slide in valve sleeve 510 and block valve body 610. Limiting portion 620 is fixedly arranged at the top of valve body 610, and the inside of limiting portion 620 is provided with internal thread, and the bottom of adjusting rod 660 is provided with external thread, and the two are screwed. By so arranging, the relative position of valve body 610 in valve sleeve 510 can be adjusted, so that valve body 610 can meet the requirements. When cleaning filter element 200, blind plate 640 blocks valve sleeve 510. When filtering, blind plate 640 is located below valve sleeve 510, and liquid can pass through rib plate 630 and then flow out from water passing hole 650. The advantage of such arrangement is that the utility model can meet the requirements of backwashing filter element 200 while ensuring the flow rate during filtering.

[0098] Referring to Figure 3 In some embodiments of the utility model, the utility model further includes back flushing assembly 800, back flushing assembly 800 is provided with multiple spray heads 830, multiple spray heads 830 are connected in series through gas delivery ring 820, gas delivery ring 820 is connected with air inlet pipe 810, air inlet pipe 810 is connected with air blowing system;Multiple spray heads 830 are used to form vortex at the top of baffle cylinder 710. Specifically, the included angle between spray head 830 and the circumference of baffle cylinder 710 is 45 degrees, and the radial included angle with baffle cylinder 710 is 30 degrees. By so arranging, vortex can be better formed, and when cleaning filter element 200, the scouring force can be increased.

[0099] Referring to Figure 12 And Figure 13In some embodiments of the utility model, the middle part of cover body 161 is equipped with convex part 162, the inside of convex part 162 is equipped with sealing ring 163, cover body 161 still has multiple limiting holes 164 and fixed hole 165. The middle part of convex part 162 is equipped with through hole, the through of adjusting rod 660 is convenient, the sealing of the sealing ring 163 is increased between adjusting rod 660 and convex part 162. Limiting hole 164 is convenient for the penetration of limiting rod 920, fixed hole 165 is the threaded hole, the penetration of bolt is convenient, thereby it is fixed at the top of filter shell 120.

[0100] Referring to Figure 14 And Figure 15 The utility model also provides a filter system, including water inlet main pipe way 170, drainage main pipe way 180 and water production main pipe way 190, water inlet main pipe way 170, drainage main pipe way 180 and water production main pipe way 190 are parallelly arranged;Water inlet main pipe way 170 is equipped with first water valve 171;Drainage main pipe way 180 is equipped with second water valve 181;Water production main pipe way 190 is equipped with third water valve 191, multiple steelmaking continuous casting machine front filter of any one embodiment above, multiple steelmaking continuous casting machine front filters are arranged in parallel, and steelmaking continuous casting machine front filter is communicated with water inlet main pipe way 170 and drainage main pipe way 180 through second interface 150, and steelmaking continuous casting machine front filter is communicated with water production main pipe way 190 through first interface 140.

[0101] When needing to filter, close first water valve 171 and third water valve 191, and close first water valve 171. The water to be filtered enters the inside of second interface 150 from water inlet main pipe way 170, and then enters the inside of third cavity 210. After filtering, filtered water is discharged from first interface 140 to the inside of water production main pipe way 190 for collection. When needing to clean filter core 200, first water valve 171 can be closed, and second water valve 181 can be opened. At this time, clean water enters the inside of first interface 140 from water production main pipe way 190, and then is cleaned. After cleaning, the cleaning water is discharged from drainage main pipe way 180. In the utility model, multiple steelmaking continuous casting machine front filters are arranged, which can rotate to clean a certain one or several, and the remaining steelmaking continuous casting machine front filters can continue to work. In this way, the phenomenon of production stoppage does not occur, thereby greatly improving work efficiency.

[0102] It should be finally pointed out that: the above examples are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been explained in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A steelmaking continuous caster front filter, characterized in that, The utility model relates to a filter device, including: A shell assembly (100) has a first cavity (110) and a second cavity (130) inside, the shell assembly (100) is equipped with first interface (140) and second interface (150), first interface (140) communicates with second cavity (130), second interface (150) communicates with first cavity (110); A filter core (200) has a third cavity (210) inside, the filter core (200) is arranged in the inside of first cavity (110), the sidewall of filter core (200) is equipped with a plurality of filter grooves (220), one side of third cavity (210) communicates with first interface (140) through filter groove (220), the other side of third cavity (210) communicates with second interface (150); Wherein, the filter core (200) is used for switching between the relaxed state and the compaction state, in the relaxed state, the contact area of filter groove (220) and first cavity (110) is first area, in the compaction state, the contact area of filter groove (220) and first cavity (110) is second area, and the first area is greater than the second area.

2. The steelmaking continuous casting machine front filter according to claim 1, wherein: The filter core (200) comprises a spiral structure, and the spiral structure has a plurality of circle layers connected in sequence; In the relaxed state, adjacent two circle layers have a gap, and in the compaction state, adjacent two circle layers are in contact. At least part of the surface of the circle layer has a plurality of filter grooves (220).

3. A steelmaking continuous caster front filter according to claim 1, characterized in that, Further comprising: A limiting assembly (900) is arranged in the inside of the first cavity (110), the limiting assembly (900) has a limiting space in the inside, the filter core (200) is located in the limiting space, and the bottom of the limiting assembly (900) is provided with an opening; A partition seat (700) is arranged in the inside of the first cavity (110) and connected with the bottom of the limiting assembly (900), the partition seat (700) is used for fixing the limiting assembly (900), and the second cavity (130) is located in the inside of the partition seat (700); A reset assembly (300) is arranged in the limiting space, one end of the reset assembly (300) is in abutment with the top end of the limiting assembly (900), the other end is in abutment with the top end of the filter core (200), and the reset assembly (300) is used for maintaining the filter core (200) in the compaction state; A valve seat (500) is arranged in the opening, the valve seat (500) has a first flow channel and a second flow channel, the second flow channel is arranged outside the first flow channel, and the two ends of the first flow channel and the second flow channel are respectively communicated with the third cavity (210) and the second cavity (130). A backwash valve (600) is connected to the reset assembly (300) at a first end, and is provided in the first flow channel at a second end. The backwash valve (600) is used to switch between a first position and a second position. In the first position, the filter element (200) is in the relaxed state, and the second end of the backwash valve (600) is blocked in the first flow channel. In the second position, the filter element (200) is maintained in the compacted state, and the second end of the backwash valve (600) unblocks the first flow channel.

4. A steelmaking continuous caster front filter according to claim 3, characterized in that, The limiting assembly (900) comprises: A gland (910) is detachably provided on the top of the housing assembly (100) to seal the top of the housing assembly (100); A plurality of limiting rods (920) penetrate the gland (910) and the top of the housing assembly (100). The plurality of limiting rods (920) are arranged in a closed manner. The middle of the plurality of limiting rods (920) forms the limiting space. The bottom of the plurality of limiting rods (920) is detachably connected to the limiting seat (700).

5. A steelmaking continuous caster front filter according to claim 4, characterized in that, The limiting seat (700) comprises: A fixed ring (720) is connected to the bottom of the limiting rod (920); A limiting cylinder (710) is provided at the bottom of the fixed ring (720). The bottom of the limiting cylinder (710) is sealingly connected to the bottom of the housing assembly (100). The inside of the limiting cylinder (710) forms the second cavity (130); A plurality of connecting pieces (730) are arranged at intervals on the outer periphery of the fixed ring (720). The side of the connecting piece (730) away from the fixed ring (720) is connected to the inner wall of the housing assembly (100).

6. A steelmaking continuous caster front filter according to claim 3, characterized in that, The reset assembly (300) comprises: An upper cover (310) is provided on the top of the limiting assembly (900); An elastic member (320) is movably provided in the upper cover (310); A lower cover (330) is abutted to one end of the filter element (200) and abutted to the other end of the elastic member (320). The backwash valve (600) is connected to the lower cover (330).

7. A steelmaking continuous caster front filter according to claim 6, characterized in that, The valve seat (500) comprises: A valve sleeve (510) is provided inside the first flow channel; A valve outer sleeve (520) is provided on the outer periphery of the valve sleeve (510) with a gap between the valve sleeve (510) and the valve outer sleeve (520); A plurality of vanes (530) are arranged in a spiral manner between the valve sleeve (510) and the valve outer sleeve (520). Adjacent two vanes (530) form the second flow channel.

8. A steelmaking continuous caster front filter according to claim 7, characterized in that, The backwash valve (600) comprises: A valve body (610) is movably provided inside the valve sleeve (510) and above the first interface (140); A limiting portion (620) is provided in the middle of the valve body (610) and is spaced apart from the valve body (610); A plurality of rib plates (630) are arranged between the valve body (610) and the limiting portion (620), and a plurality of water passing gaps are arranged between the plurality of rib plates (630); A blind plate (640) is arranged at the bottom of the valve body (610), and the blind plate (640) is sealed at the bottom of the valve sleeve (510) in the first position; A plurality of water passing holes (650) are arranged at the sidewall of the valve body (610) at intervals; An adjusting rod (660) is connected with the limiting portion (620) at the first end, and connected with the lower cover (330) at the second end.

9. A steelmaking continuous caster front filter according to claim 5, characterized in that, Further comprising a back flushing assembly (800) provided with a plurality of spray heads (830), a plurality of the spray heads (830) are connected in series through a gas delivery ring (820), the gas delivery ring (820) is connected with an air inlet pipe (810), the air inlet pipe (810) is connected with a blowing system, and the plurality of spray heads (830) are used to form vortex at the top of the baffle cylinder (710).

10. A filtration system characterized by, Comprise: A water inlet main pipe (170) provided with a first water valve (171); A water discharge main pipe (180) provided with a second water valve (181); A water production main pipe (190) provided with a third water valve (191), and the water inlet main pipe (170), the water discharge main pipe (180) and the water production main pipe (190) are arranged side by side; A plurality of steelmaking continuous casting machine front filters according to any one of claims 1-9 are arranged side by side, the steelmaking continuous casting machine front filters are communicated with the water inlet main pipe (170) and the water discharge main pipe (180) through the second interface (150), and the steelmaking continuous casting machine front filters are communicated with the water production main pipe (190) through the first interface (140).

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