Environment-friendly grillage machine for sewage treatment

Abstract

The invention discloses an environment-friendly grillage machine for sewage treatment. The environment-friendly grillage machine comprises a grillage machine shell and a solid-liquid separation mechanism, the solid-liquid separation mechanism comprises a filter roller, a flexible filter layer and an extrusion roller; a row of filtering rollers are obliquely and rotatably arranged in the grillage machine shell, and a discharging opening is formed in the position, located at the discharging ends of the row of filtering rollers, of the side wall of the grillage machine shell. A flexible filter layer which performs intermittent transmission in the horizontal direction and of which the discharge end penetrates out of the side wall of the grillage machine shell is horizontally arranged in the grillage machine shell below the row of filter rollers through a belt transmission mechanism; and two rotatable extrusion rollers which can move towards the discharging end to extrude the upper side and the lower side of the stopped discharging end are respectively and horizontally arranged on the upper side and the lower side of the discharging end of the flexible filtering layer. And organic impurities cannot be separated from the impurities.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to a screen machine for environmentally friendly sewage treatment. Background Art

[0002] The screen machine is a solid-liquid separation equipment that can continuously remove impurities in the fluid. It is used in the fields of domestic sewage treatment. Among them, domestic sewage is the wastewater discharged from the daily life of residents, mainly from residential buildings and public buildings, such as residences, institutions, schools, hospitals, shops, public places and toilets of industrial enterprises. The pollutants contained in domestic sewage are mainly organic matter (such as protein, carbohydrates, fat, urea, ammonia nitrogen, etc.) and a large number of pathogenic microorganisms (such as parasite eggs and enteric infectious viruses, etc.). The organic matter present in domestic sewage is extremely unstable and easily decomposes to produce a foul odor. Bacteria and pathogens multiply in large numbers with organic matter in domestic sewage as nutrition, which can lead to the spread of infectious diseases. Therefore, domestic sewage must be treated before discharge.

[0003] However, during the use of the existing screen machine, residual organic impurities (including plant leaves or fruits) are likely to appear on the filter screen, which is difficult to clean and cannot separate the organic impurities from the impurities.

[0004] Therefore, it is an urgent problem to be solved by the present invention to provide an environmentally friendly sewage treatment screen machine that can automatically separate solid impurities and organic impurities through a solid-liquid separation mechanism during use, and to pressurize and dehydrate the flexible filter layer and the organic impurities on its surface during the separation process to reduce the adhesion of the organic impurities, so that during the operation of the flexible filter layer, the dehydrated impurities can fall off or drop from the filter layer, thereby realizing the automatic cleaning function. Summary of the invention

[0005] In view of the above technical problems, the purpose of the present invention is to overcome the problems in the prior art that residual organic impurities are easily left on the filter grid, which is difficult to clean and cannot separate the organic impurities from the impurities. Thus, a screen machine for environmentally friendly sewage treatment is provided, which can automatically separate solid impurities and organic impurities through a solid-liquid separation mechanism during use, and pressurize and dehydrate the flexible filter layer and the organic impurities on its surface during the separation process to reduce the adhesion of the organic impurities, so that during the operation of the flexible filter layer, the dehydrated impurities can fall off or drop from the filter layer, thereby realizing the function of automatic cleaning.

[0006] In order to achieve the above-mentioned object, the present invention provides a screen machine for environmentally friendly sewage treatment, the screen machine comprising: a screen machine housing and a solid-liquid separation mechanism;

[0007] The solid-liquid separation mechanism comprises: a filter roller, a flexible filter layer and a squeeze roller; wherein,

[0008] A row of filter rollers are arranged obliquely and rotatably inside the grille machine housing, and a discharge port is provided on the side wall of the grille machine housing at the discharge end of the row of filter rollers, and a flexible filter layer which performs intermittent transmission in the horizontal direction and whose discharge end passes through the side wall of the grille machine housing is horizontally arranged through a belt transmission mechanism inside the grille machine housing below the row of filter rollers, and two rotatable squeezing rollers which can move toward the discharge end to squeeze the upper and lower sides of the stopped discharge end are horizontally arranged on the upper and lower sides of the discharge end of the flexible filter layer.

[0009] Preferably, a No. 1 collecting box with its opening facing upward is fixedly disposed horizontally on the side wall of the screen machine housing below the discharge port, and a No. 2 collecting box with its opening facing upward is fixedly disposed horizontally on the side wall of the screen machine housing below the discharge end of the flexible filter layer.

[0010] Preferably, a stand is vertically fixed on one side of the upper open end of the No. 2 collection box, and the belt transmission mechanism is installed between the interior of the grille machine housing located below a row of the filter rollers and the stand, and the belt transmission mechanism includes: a belt and a belt roller; wherein,

[0011] The two belt rollers are respectively arranged horizontally and rotatably inside the grille machine housing and on the stand, and the two belt rollers are connected by two parallel belts, and a flexible filter layer is fixedly connected between the two belts.

[0012] Preferably, the grid machine further comprises a transmission mechanism for driving the two squeezing rollers to approach the discharge end of the flexible filter layer to squeeze it, and the transmission mechanism comprises: a first transmission wheel, a second transmission wheel and a transmission belt; wherein,

[0013] The vertical frame located at the upper and lower ends of the belt roller is provided with two longitudinal windows at intervals, and two No. 1 sliders for assembling two squeezing rollers that can lean against the corresponding belt rollers are respectively provided in the two longitudinal windows, and a No. 1 transmission wheel is horizontally and rotatably provided on each of the No. 1 sliders, and a support frame is vertically fixed on the upper end of the No. 2 collection box located next to the vertical frame, and a transverse window is provided inside the support frame, and a No. 2 slider is horizontally and movably provided in the transverse window, and a No. 2 transmission wheel is horizontally and rotatably provided on the No. 2 slider, and the two No. 1 transmission wheels and the No. 2 transmission wheels are connected together by the transmission belt.

[0014] Preferably, the grill machine further comprises a power mechanism for driving the belt mechanism to intermittently operate, the power mechanism comprising: a driven gear, a double-sided rack plate and an incomplete gear; wherein,

[0015] A driven gear is coaxially fixedly arranged on the end of the belt roller mounted on the vertical frame through the one-way bearing, an incomplete gear is horizontally and rotatably arranged on the vertical frame below the driven gear, and a double-sided rack plate that can pass through the horizontal window and is respectively meshed with the driven gear and the incomplete gear is horizontally fixedly arranged on the end of the second slider between the driven gear and the incomplete gear, and a motor for driving the incomplete gear to rotate is horizontally fixedly arranged on the vertical frame, and the motor is coaxially connected to the central rotating shaft of the incomplete gear through a coupling.

[0016] Preferably, a guide rod No. 1 is vertically fixed in each of the longitudinal windows, a longitudinal guide hole is vertically penetrated on each of the No. 1 sliders for the No. 1 guide rod to pass through, and the No. 1 slider is liftably assembled on the No. 1 guide rod through the longitudinal guide hole, a No. 1 spring is sleeved on each of the No. 1 guide rods, and the two ends of each of the No. 1 springs are respectively fixed on the No. 1 slider and the longitudinal window.

[0017] Preferably, a No. 2 guide rod is horizontally fixedly arranged in the transverse window, and a transverse guide hole is horizontally penetrated through the No. 2 slider for the No. 2 guide rod to pass through, and the No. 2 slider is movably assembled on the No. 2 guide rod through the transverse guide hole, and a No. 2 spring is sleeved on the No. 2 guide rod, and the two ends of the No. 2 spring are respectively fixed on the No. 2 slider and the transverse window.

[0018] Preferably, a water inlet connected to the interior is vertically fixed on the top of the grille housing, and a water outlet connected to the interior is horizontally fixed on the side wall of the grille housing below the flexible filter layer, and a switch valve is fixed on the water outlet.

[0019] According to the above technical solution, the beneficial effects of the screen machine for environmentally friendly sewage treatment provided by the present invention when used are as follows:

[0020] (1) The sewage to be treated enters the screen housing from the top thereof. After entering the screen housing, the sewage passes through a row of inclined and rotatable filter rollers. Large particles of fixed impurities are discharged from the discharge port of the screen housing through the inclined row of filter rollers, while other impurities fall from the gaps between the filter rollers onto the flexible filter layer (other impurities include organic impurities such as leaves and peels. The water on the surface of these impurities will easily adhere to the filter screen, thereby blocking the mesh of the filter screen and reducing the water seepage effect of the filter device). Other impurities that fall onto the flexible filter layer are transported horizontally by the belt transmission mechanism. When the impurities are transported from the inside of the grille machine housing to the outside thereof and to the discharge end of the flexible filter layer, the transport of the flexible filter layer is stopped, and the two squeezing rollers located above and below it are driven to move toward the flexible filter layer and squeeze it, so as to squeeze the water in the flexible filter layer and the impurities adhering to the flexible filter layer and squeeze the water out, and the adhesion capacity of the impurities with squeezed water and the squeezed flexible filter layer will also be reduced, so that the dehydrated impurities will easily fall off the flexible filter layer, thereby realizing the separation of impurities and avoiding the impurities adhering to the flexible filter layer and affecting its water seepage effect.

[0021] (2) After the flexible filter layer is squeezed by the two squeezing rollers, the two squeezing rollers are driven away from the flexible filter layer so that the impurities after squeezing and dehydration are moved along with the flexible filter layer. During the process of the impurities moving horizontally from top to bottom with the flexible filter layer, the impurities will have poor adhesion to the flexible filter layer after being squeezed and dehydrated, and will automatically drip from the surface of the flexible filter layer under the action of their own gravity, thereby realizing the separation function of the impurities and the flexible filter layer.

[0022] In summary, the present invention can automatically separate solid impurities and organic impurities through the solid-liquid separation mechanism, and during the separation process, the flexible filter layer and the organic impurities on its surface are pressurized and dehydrated to reduce the adhesion of the organic impurities, so that during the operation of the flexible filter layer, the dehydrated impurities can fall off or drop from the filter layer, thereby realizing the function of automatic cleaning.

[0023] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation mode; and the parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 It is a structural schematic diagram of a screen machine for environmentally friendly sewage treatment provided in a preferred embodiment of the present invention;

[0026] Figure 2 It is a schematic diagram of the internal structure of a screen machine for environmentally friendly sewage treatment provided in a preferred embodiment of the present invention;

[0027] Figure 3 It is a schematic diagram of the assembly of the squeezing roller of the screen machine for environmentally friendly sewage treatment provided in a preferred embodiment of the present invention;

[0028] Figure 4 yes Figure 3 Schematic diagram of the enlarged structure of local A in the middle.

[0029] Description of Reference Numerals

[0030] 1. Screen machine housing; 2. No. 1 collecting box; 3. No. 2 collecting box; 4. Filter roller; 5. Flexible filter layer; 6. Squeeze roller; 7. Transmission mechanism; 701. No. 1 transmission wheel; 702. No. 2 transmission wheel; 703. Transmission belt; 8. Stand; 9. Support frame; 10. Water inlet end; 11. Water outlet end; 12. Power mechanism; 1201. Driven gear; 1202. Double-sided rack plate; 1203. Incomplete gear; 13. No. 1 slider; 14. No. 1 guide rod; 15. No. 1 spring; 16. No. 2 slider; 17. No. 2 guide rod; 18. No. 2 spring; 19. One-way bearing; 20. Motor. DETAILED DESCRIPTION

[0031] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0032] like Figure 1-4 As shown, the present invention provides a screen machine for environmentally friendly sewage treatment, the screen machine comprising: a screen machine housing 1 and a solid-liquid separation mechanism;

[0033] The solid-liquid separation mechanism comprises: a filter roller 4, a flexible filter layer 5 and a squeeze roller 6; wherein,

[0034] A row of filter rollers 4 are obliquely and rotatably arranged inside the grille machine housing 1, and a discharge port is opened on the side wall of the grille machine housing 1 located at the discharge end of the row of filter rollers 4, and a flexible filter layer 5 that performs intermittent transmission in the horizontal direction and the discharge end passes through the side wall of the grille machine housing 1 is horizontally arranged through a belt transmission mechanism inside the grille machine housing 1 located below the row of filter rollers 4, and two rotatable squeezing rollers 6 that can move toward the discharge end to squeeze the upper and lower sides of the stopped discharge end are horizontally arranged on the upper and lower sides of the discharge end of the flexible filter layer 5.

[0035] In the above solution, the flexible filter layer 5 can be made of cloth or sponge material.

[0036] When in use, the sewage to be treated enters the grille housing 1 from the top thereof. After the sewage enters the grille housing 1, it passes through the inclined and rotatable row of filter rollers 4. Large particles of fixed impurities are discharged from the discharge port of the grille housing 1 through the inclined row of filter rollers 4, while other impurities fall into the flexible filter layer 5 from the gaps between the filter rollers 4 (other impurities include organic impurities such as leaves and peels. The water on the surface of these impurities will easily adhere to the filter screen, thereby blocking the mesh of the filter screen and reducing the water seepage effect of the filter device). Figure 1 and Figure 2 As shown, when other impurities dropped on the flexible filter layer 5 are transported from the inside of the grille machine housing 1 to the outside thereof and to the discharge end of the flexible filter layer 5 by the belt transmission mechanism running in the horizontal direction, the flexible filter layer 5 is stopped from being transported, and the two squeezing rollers 6 located above and below it are driven to move toward the flexible filter layer 5 and squeeze it, so as to squeeze the water in the flexible filter layer 5 and the impurities adhering to the flexible filter layer 5, and squeeze out the water, and the adhesion ability of the impurities with squeezed water and the squeezed flexible filter layer 5 will also be reduced, so that the impurities after dehydration will easily fall off the flexible filter layer 5, thereby realizing the separation of impurities and avoiding the impurities adhering to the flexible filter layer 5 and affecting its water seepage effect. Therefore, when the flexible filter layer 5 is squeezed by the two squeezing rollers 6, the two squeezing rollers 6 are driven away from the flexible filter layer 5 so that the impurities after squeezing and dehydration can move along with the flexible filter layer 5. In the process of the impurities moving horizontally from top to bottom in the opposite direction along with the flexible filter layer 5, the impurities will have poor adhesion to the flexible filter layer 5 after being squeezed and dehydrated, and can automatically drip from the surface of the flexible filter layer 5 under the action of their own gravity, so as to realize the separation function of the impurities and the flexible filter layer 5.

[0037] In a preferred embodiment of the present invention, a No. 1 collecting box 2 with an opening facing upward is horizontally fixedly arranged on the side wall of the screen machine housing 1 below the discharge port, and a No. 2 collecting box 3 with an opening facing upward is horizontally fixedly arranged on the side wall of the screen machine housing 1 below the discharge end of the flexible filter layer 5.

[0038] In the above scheme, the impurities at the separation point of the grid machine are collected by the No. 1 collecting box 2 and the No. 2 collecting box 3 respectively, thereby realizing the function of impurity separation.

[0039] In addition, filter plates are fixedly installed horizontally inside the No. 1 collection box 2 and the No. 2 collection box 3, and water pipes connected to the inside of the No. 1 collection box 2 and the No. 2 collection box 3 are fixedly installed at the bottom ends thereof, and the free ends of each of the water pipes are connected to the inside of the grille machine housing 1 located below the flexible filter layer 5. The purpose of the filter plates is to control the water of the separated impurities, so as to control the water contained on the surface of the impurities and to control the controlled water to enter the grille machine housing 1 through the water pipe and be discharged together with the filtered water.

[0040] In a preferred embodiment of the present invention, a stand 8 is vertically fixed on one side of the upper open end of the No. 2 collection box 3, and the belt transmission mechanism is installed between the interior of the grid machine housing 1 located below a row of the filter rollers 4 and the stand 8, and the belt transmission mechanism includes: a belt and a belt roller; wherein,

[0041] The two belt rollers are respectively horizontally and rotatably arranged inside the grille machine housing 1 and on the stand 8, and the two belt rollers are connected by two parallel belts, and a flexible filter layer 5 is fixedly connected between the two belts.

[0042] In the above scheme, when in use, the two belt rollers are driven to rotate intermittently to drive the two belts on the two belt rollers and the flexible filter layer 5 fixed on the two belts to run intermittently. When the flexible filter layer 5 stops running, the two squeezing rollers 6 can be coordinated to move the two squeezing rollers 6 toward the flexible filter layer 5 in the vertical direction to squeeze the flexible filter layer 5, thereby squeezing and dehydrating the flexible filter layer 5 located directly under the two squeezing rollers 6 and the impurities adhering to the flexible filter layer 5.

[0043] In a preferred embodiment of the present invention, the grid machine further comprises a transmission mechanism 7 for driving the two squeezing rollers 6 toward the discharge end of the flexible filter layer 5 to squeeze it, and the transmission mechanism 7 comprises: a first transmission wheel 701, a second transmission wheel 702 and a transmission belt 703; wherein,

[0044] The stand 8 located at the upper and lower ends of the belt roller is provided with two longitudinal windows at intervals, and two No. 1 sliders 13 for assembling the two squeezing rollers 6 that can be abutted against the corresponding belt rollers are respectively provided in the two longitudinal windows, and a No. 1 transmission wheel 701 is horizontally and rotatably provided on each of the No. 1 sliders 13, and a support frame 9 is vertically fixedly provided on the upper end of the No. 2 collection box 3 located next to the stand 8, and a transverse window is provided inside the support frame 9, and a No. 2 slider 16 is horizontally and movably provided in the transverse window, and a No. 2 transmission wheel 702 is horizontally and rotatably provided on the No. 2 slider 16, and the two No. 1 transmission wheels 701 and the No. 2 transmission wheel 702 are connected together by the transmission belt 703.

[0045] In the above scheme, when used, Figure 2-4 As shown, when the second slider 16 is driven to move away from the flexible filter layer 5 in the horizontal direction, the second transmission wheel 702 on the second slider 16, under the action of the transmission belt, pulls the two first transmission wheels 701 on the two first sliders 13 to approach the flexible filter layer 5 in the vertical direction and squeeze it.

[0046] In a preferred embodiment of the present invention, a No. 1 guide rod 14 is vertically fixed in each of the longitudinal windows, a longitudinal guide hole is vertically penetrated on each of the No. 1 sliders 13 for the No. 1 guide rod 14 to pass through, and the No. 1 slider 13 can be lifted and lowered on the No. 1 guide rod 14 through the longitudinal guide hole, and a No. 1 spring 15 is sleeved on each of the No. 1 guide rods 14, and the two ends of each of the No. 1 springs 15 are respectively fixed on the No. 1 slider 13 and the longitudinal window.

[0047] In the above scheme, the No. 1 guide rod 14 and the longitudinal guide hole of the No. 1 slider 13 are used in conjunction to play a guiding role, so that the No. 1 slider 13 can be lifted and lowered linearly in the longitudinal direction, and the No. 1 spring 15 plays a resetting role.

[0048] During use, when the No. 2 slider 16 is driven to move away from the flexible filter layer 5 in the horizontal direction, the No. 2 transmission wheel 702 on the No. 2 slider 16, under the action of the transmission belt, will pull the two No. 1 transmission wheels 701 on the two No. 1 sliders 13 respectively in the vertical direction toward the flexible filter layer 5 and squeeze it. At the same time, the two No. 1 springs 15 are in a stretched state. When the No. 2 slider 16 approaches the flexible filter layer 5, the two No. 1 sliders 13, under the action of the No. 1 springs 15, drive the squeezing rollers 6 in the vertical direction away from the flexible filter layer 5 and return to their initial positions.

[0049] In a preferred embodiment of the present invention, a No. 2 guide rod 17 is horizontally fixedly arranged in the transverse window, and the No. 2 slider 16 is horizontally penetrated with a transverse guide hole for the No. 2 guide rod 17 to pass through, and the No. 2 slider 16 is movably assembled on the No. 2 guide rod 17 through the transverse guide hole, and a No. 2 spring 18 is sleeved on the No. 2 guide rod 17, and the two ends of the No. 2 spring 18 are respectively fixed on the No. 2 slider 16 and the transverse window.

[0050] In the above scheme, the transverse guide hole of the second slider 16 and the second guide rod 17 cooperate to play a guiding role, so as to ensure that the second slider 16 can move horizontally and linearly back and forth on the second guide rod 17. In addition, the second spring 18 plays a resetting role.

[0051] During use, when the No. 2 slider 16 is driven to move away from the flexible filter layer 5 in the horizontal direction, the No. 2 slider 16 compresses the No. 2 spring 18 during the movement so that it is in a compressed state. At the same time, the No. 2 transmission wheel 702 on the No. 2 slider 16 will pull the two No. 1 transmission wheels 701 on the two No. 1 sliders 13 respectively in the vertical direction toward the flexible filter layer 5 and squeeze it under the action of the transmission belt, and the two No. 1 springs 15 are in a stretched state. When the force driving the No. 2 slider 16 disappears, the No. 2 slider 16 moves toward the flexible filter layer 5 under the action of the No. 2 spring 18. In the process of the No. 2 slider 16 moving toward the flexible filter layer 5, the two No. 1 sliders 13 respectively drive the squeezing rollers 6 in the vertical direction away from the flexible filter layer 5 and restore them to their initial positions under the action of the No. 1 spring 15.

[0052] In a preferred embodiment of the present invention, the grill machine further comprises a power mechanism 12 for driving the belt mechanism to intermittently operate, the power mechanism 12 comprising: a driven gear 1201, a double-sided rack plate 1202 and an incomplete gear 1203; wherein,

[0053] A driven gear 1201 is coaxially fixedly arranged on the end of the belt roller mounted on the stand 8 through the one-way bearing 19, an incomplete gear 1203 is horizontally and rotatably arranged on the stand 8 below the driven gear 1201, and a double-sided rack plate 1202 that can pass through the horizontal window and is respectively meshed with the driven gear 1201 and the incomplete gear 1203 is horizontally fixedly arranged on the end of the second slider 16 between the driven gear 1201 and the incomplete gear 1203, and a motor 20 for driving the incomplete gear 1203 to rotate is horizontally fixedly arranged on the stand 8, and the motor 20 is coaxially connected to the central rotating shaft of the incomplete gear 1203 through a coupling.

[0054] In the above scheme, since the driven gear 1201 is assembled on the belt roller through the one-way bearing 19, when the motor 20 drives the incomplete gear 1203 to rotate counterclockwise, when the rack on the incomplete gear 1203 meshes with the double-sided rack plate 1202 and drives the double-sided rack plate 1202 and the second slider 16 to horizontally approach the grille machine housing 1 and stretch the second spring 18 to make it compressed, at the same time, the two first sliders 13 are on the first spring 1 5, they are respectively away from the flexible filter layer 5, and in the process of the No. 1 spring 15 gradually recovering to the natural state from the stretched state (at this time, the driven gear 1201 is fixedly connected to the end of the belt roller through the one-way bearing 19), the double-sided rack plate 1202 can drive the driven gear 1201 meshing with it to rotate clockwise during the process of moving toward the grille machine housing 1, thereby driving the two belts and the flexible filter layers 5 fixed on the two belts to run from left to right in the horizontal direction.

[0055] When the rack of the incomplete gear 1203 is out of meshing relationship with the double-sided rack plate 1202, under the action of the No. 2 spring 18, the double-sided rack plate 1202 and the No. 2 slider 16 move away from the flexible filter layer 5 in the horizontal direction, and at this time, the driven gear 1201 is connected to the end of the belt roller in rotation under the action of the one-way bearing 19. Therefore, when the double-sided rack plate 1202 moves away from the flexible filter layer 5, the driven gear 1201 rotates idly under the meshing relationship of the double-sided rack plate 1202, and the belt roller does not rotate accordingly, thereby realizing intermittent operation of the flexible filter layer 5 through the belt transmission mechanism to cooperate with the two squeezing rollers 6. In addition, when the No. 2 slider 16 drives the double-sided rack plate 1202 away from the flexible filter layer 5 under the reset action of the No. 2 spring 18, the two No. 1 sliders 13 are driven to approach the flexible filter layer 5 and squeeze it through the transmission mechanism 7.

[0056] In a preferred embodiment of the present invention, a water inlet 10 connected to the interior is vertically fixedly provided on the top of the grille machine housing 1, and a water outlet 11 connected to the interior is horizontally fixedly provided on the side wall of the grille machine housing 1 below the flexible filter layer 5, and a switch valve is fixedly provided on the water outlet 11.

[0057] In the above scheme, when in use, the sewage pipe is connected to the inlet end 10, so that the sewage enters the water inlet end 10 through the sewage pipe and enters the interior of the screen machine housing 1 from the top thereof, passes through the solid-liquid separation mechanism, and then the separated sewage is discharged through the water outlet end 11.

[0058] In summary, the screen machine for environmentally friendly sewage treatment provided by the present invention overcomes the problems in the prior art that residual organic impurities are easily left on the filter screen, are difficult to clean, and cannot separate the organic impurities from the impurities.

[0059] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0060] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0061] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A screen machine for environmentally friendly sewage treatment, characterized in that: The grid machine comprises: a grid machine housing (1) and a solid-liquid separation mechanism; The solid-liquid separation mechanism comprises: a filter roller (4), a flexible filter layer (5) and a squeeze roller (6); wherein: A row of filter rollers (4) are arranged inside the grille machine housing (1) in an inclined and rotatable manner, and a discharge port is provided on the side wall of the grille machine housing (1) at the discharge end of the row of filter rollers (4), and a flexible filter layer (5) which is intermittently driven in the horizontal direction and has a discharge end extending from the side wall of the grille machine housing (1) is horizontally arranged through a belt transmission mechanism inside the grille machine housing (1) below the row of filter rollers (4), and two rotatable squeezing rollers (6) which can move toward the discharge end to squeeze the upper and lower sides of the stopped discharge end are respectively arranged horizontally on the upper and lower sides of the discharge end of the flexible filter layer (5).

2. The screen machine for environmentally friendly sewage treatment according to claim 1, characterized in that: A first collecting box (2) with its opening facing upward is fixedly disposed horizontally on the side wall of the grille machine housing (1) below the discharge port, and a second collecting box (3) with its opening facing upward is fixedly disposed horizontally on the side wall of the grille machine housing (1) below the discharge end of the flexible filter layer (5).

3. The screen machine for environmentally friendly sewage treatment according to claim 2, characterized in that: A stand (8) is vertically fixedly arranged on one side of the upper open end of the No. 2 collection box (3), and the belt transmission mechanism is installed between the interior of the grille machine housing (1) located below a row of the filter rollers (4) and the stand (8), and the belt transmission mechanism comprises: a belt and a belt roller; wherein: The two belt rollers are respectively arranged horizontally and rotatably inside the grille machine housing (1) and on the stand (8), and the two belt rollers are connected by two parallel belts, and a flexible filter layer (5) is fixedly connected between the two belts.

4. The screen machine for environmentally friendly sewage treatment according to claim 3, characterized in that: The grid machine also includes a transmission mechanism (7) for driving the two squeezing rollers (6) toward the discharge end of the flexible filter layer (5) to squeeze it, and the transmission mechanism (7) includes: a first transmission wheel (701), a second transmission wheel (702) and a transmission belt (703); wherein: The stand (8) located at the upper and lower ends of the belt roller is provided with two longitudinal windows at intervals, and two first sliders (13) for assembling two squeezing rollers (6) on the corresponding belt roller are respectively provided in the two longitudinal windows in a liftable manner, each of the first sliders (13) is provided with a first transmission wheel (701) horizontally and rotatably, and a support frame (9) is vertically fixedly provided at the upper end of the second collection box (3) located beside the stand (8), a transverse window is provided inside the support frame (9), and a second slider (16) is horizontally and movably provided in the transverse window, and a second transmission wheel (702) is horizontally and rotatably provided on the second slider (16), and the two first transmission wheels (701) and the second transmission wheel (702) are connected together by the transmission belt (703).

5. The screen machine for environmentally friendly sewage treatment according to claim 4, characterized in that: The grill machine also includes a power mechanism (12) for driving the belt mechanism to intermittently operate, the power mechanism (12) including: a driven gear (1201), a double-sided rack plate (1202) and an incomplete gear (1203); wherein: A driven gear (1201) is coaxially fixedly arranged on the end of the belt roller mounted on the stand (8) via the one-way bearing (19); an incomplete gear (1203) is horizontally and rotatably arranged on the stand (8) below the driven gear (1201); a double-sided rack plate (1202) capable of passing through the horizontal window and meshingly connected with the driven gear (1201) and the incomplete gear (1203) is horizontally fixedly arranged on the end of the second slider (16) located between the driven gear (1201) and the incomplete gear (1203); and a motor (20) for driving the incomplete gear (1203) to rotate is horizontally fixedly arranged on the stand (8); the motor (20) is coaxially connected to the central rotating shaft of the incomplete gear (1203) via a coupling.

6. The screen machine for environmentally friendly sewage treatment according to claim 4, characterized in that: A guide rod (14) is vertically fixed in each of the longitudinal windows, a longitudinal guide hole is vertically penetrated through each of the slide blocks (13) for the guide rod (14) to pass through, and the slide block (13) is movably mounted on the guide rod (14) through the longitudinal guide hole, and a spring (15) is sleeved on each of the guide rods (14), and two ends of each of the springs (15) are respectively fixed on the slide block (13) and the longitudinal window.

7. The screen machine for environmentally friendly sewage treatment according to claim 4, characterized in that: A second guide rod (17) is horizontally fixedly arranged in the transverse window, and a transverse guide hole for the second guide rod (17) to pass through is horizontally opened in the second slider (16), and the second slider (16) is movably assembled on the second guide rod (17) through the transverse guide hole, and a second spring (18) is sleeved on the second guide rod (17), and two ends of the second spring (18) are respectively fixed on the second slider (16) and the transverse window.

8. The screen machine for environmentally friendly sewage treatment according to claim 1, characterized in that: A water inlet (10) connected to the interior is vertically fixedly provided on the top of the grille machine housing (1), and a water outlet (11) connected to the interior is horizontally fixedly provided on the side wall of the grille machine housing (1) below the flexible filter layer (5), and a switch valve is fixedly provided on the water outlet (11).

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