Feed crushing device of sludge drying rotary furnace

Abstract

The utility model relates to the field of sludge dewatering equipment, in particular to a feed crushing device of a sludge drying rotary furnace, which comprises a feed hopper, a feed hopper, a crushing device and a crushing device, the feed hopper is provided with an upper opening and a lower opening, and the section profile of the upper opening is larger than that of the lower opening; the crushing box is arranged on the upper side of the feeding hopper, and the lower end of the crushing box communicates with the upper opening; the crushing roller assembly comprises a crushing roller rotationally installed in the crushing box and a driving part capable of driving the crushing roller to rotate, the axis of the crushing roller is parallel to the first direction, and crushing cutters are arranged on the crushing roller in the axis direction of the crushing roller at intervals; the material distributing plate assembly comprises two opposite material distributing plates arranged on the upper side of the crushing roller, the material distributing plates extend in the first direction, the gap between the two material distributing plates is gradually reduced from top to bottom, and at least one material distributing plate is arranged to move in a reciprocating mode in the first direction. According to the rotary furnace, sludge entering the rotary furnace can be further crushed and scattered, and the existing problems are effectively solved.

Description

Technical Field

[0001] The utility model relates to the field of sludge dewatering equipment, in particular to a feeding and crushing device for a sludge drying rotary furnace. Background Art

[0002] Sludge drying is a common sludge treatment method, and rotary kilns are a common type of sludge drying equipment. Sludge entering the rotary kiln often passes through a filter press to reduce its moisture content to approximately 50% (this value may fluctuate depending on the filter pressing process, dosing, and other treatment methods). The sludge after filtration forms a cake-like mass. To improve sludge drying efficiency, the sludge must be crushed before entering the rotary kiln.

[0003] As for the way sludge enters the rotary kiln, it is currently mostly transported to the feed port of the rotary kiln through an auger or other means. The applicant has found that when the sludge is transported to the feed port of the rotary kiln through the auger, large pieces of sludge have been broken into small pieces of sludge. In order to further improve the degree of sludge crushing and prevent the feed port of the rotary kiln from being blocked, the applicant has proposed a sludge drying rotary kiln feed crushing device to crush and disperse the material before entering the rotary kiln. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a sludge drying rotary kiln feeding crushing device, which can further crush and disperse the sludge entering the rotary kiln, effectively solving the existing problems.

[0005] In order to solve the above problems, the utility model provides a sludge drying rotary kiln feeding and crushing device, comprising: a feeding funnel, the feeding funnel having an upper opening and a lower opening, the cross-sectional profile of the upper opening being larger than the cross-sectional profile of the lower opening, the size of the upper opening along a first direction being larger than the size of the upper opening along a second direction, the first direction and the second direction being both horizontal and perpendicular to each other; a crushing box, arranged on the upper side of the feeding funnel, and the lower end of the crushing box being connected to the upper opening; a crushing roller assembly, comprising a crushing roller rotatably installed in the crushing box, and a driving member capable of driving the crushing roller to rotate, the axis of the crushing roller being parallel to the first direction, and the crushing roller being provided with crushing knives at intervals along its axial direction; a dividing plate assembly, comprising two oppositely arranged dividing plates arranged on the upper side of the crushing roller, the dividing plates extending along the first direction, and the gap between the two dividing plates gradually shrinking from top to bottom, wherein at least one of the dividing plates is arranged to be reciprocating along the first direction.

[0006] Furthermore, the inner side surface of the dividing plate is inclined inward from top to bottom.

[0007] Furthermore, the inner surface of the dividing plate is provided with anti-slip protrusions extending vertically.

[0008] Furthermore, one of the dividing plates is formed as a movable dividing plate slidably arranged on the crushing box, and the other is formed as a fixed dividing plate fixedly installed on the crushing box.

[0009] Furthermore, the crushing device also includes a material guide plate arranged on the upper side of the movable material dividing plate, the upper end of the material guide plate is connected to the crushing box, and the lower end extends to the upper side of the movable material dividing plate.

[0010] Furthermore, the crushing box forms an installation space on a side of the material guide plate away from the fixed material dividing plate, the movable material dividing plate crushing box is provided with a slide rail in the installation space, and the movable material dividing plate is slidably arranged on the slide rail.

[0011] Furthermore, the dividing plate assembly also includes a cylinder arranged in the installation space, and the cylinder is connected to the movable dividing plate.

[0012] Furthermore, the fixed dividing plate includes an upper plate section and a lower plate section, and the inclination angle of the upper plate section is smaller than the inclination angle of the lower plate section.

[0013] Furthermore, the upper edge of the movable dividing plate is higher than the upper edge of the lower plate section.

[0014] Furthermore, the distance between the lower edges of the two dividing plates is greater than or equal to 3 cm and less than or equal to 8 cm, and the vertical projection of the rotation axis of the crushing roller is located between the lower edges of the two dividing plates.

[0015] The beneficial effect of the utility model is that the sludge entering the rotary kiln can be further crushed and dispersed, thereby effectively solving the existing problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 This is a structural diagram of an embodiment of the present utility model.

[0018] Figure 2 for Figure 1 The illustrated embodiment is a schematic side sectional structural diagram at the position of the crushing roller's rotation axis.

[0019] Among them: 1. Feed funnel; 2. Crushing box; 3. Crushing roller; 4. Crushing knife; 5. Anti-slip protrusion; 6. Movable dividing plate; 7. Fixed dividing plate; 701. Upper plate section; 702. Lower plate section; 8. Guide plate; 9. Slide rail; 10. Cylinder. DETAILED DESCRIPTION

[0020] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0021] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0022] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] In this utility model, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integration; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or an interaction between two components. However, the phrase "direct connection" indicates that the two connected entities are not connected through an intermediate structure, but are connected to form a whole through a connecting structure. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0024] In the present invention, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may 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. In the description of this specification, the description with reference to 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 present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0025] In this utility model, if Figures 1 to 2As shown, a sludge drying rotary kiln feeding and crushing device is provided, a feeding funnel 1, the feeding funnel 1 has an upper opening and a lower opening, the cross-sectional profile of the upper opening is larger than the cross-sectional profile of the lower opening, the size of the upper opening along the first direction is larger than the size of the upper opening along the second direction, the first direction and the second direction are both horizontal and perpendicular to each other; a crushing box 2 is arranged on the upper side of the feeding funnel 1, and the lower end of the crushing box 2 is connected to the upper opening; a crushing roller assembly includes a crushing roller 3 rotatably installed in the crushing box 2, and a driving member capable of driving the crushing roller 3 to rotate, the axis of the crushing roller 3 is parallel to the first direction, and the crushing roller 3 is provided with crushing knives 4 at intervals along its axial direction; a dividing plate assembly includes two oppositely arranged dividing plates arranged on the upper side of the crushing roller 3, the dividing plates extend along the first direction, and the gap between the two dividing plates gradually decreases from top to bottom, wherein at least one of the dividing plates is arranged to be reciprocating along the first direction.

[0026] When the feeding and crushing device of the present invention is in use, the feeding funnel 1 is connected to the feeding port of the rotary kiln (the feeding port of the rotary kiln can be directly connected in the form of a feeding pipe; or it can be fed to the rotary kiln in the form of a conveying screw, in which case the lower opening is connected to the inlet of the conveying screw), and the discharge end of the sludge conveying component (such as a conveying screw) is set between the two dividing plates at the top of the crushing box 2. When the sludge is conveyed between the two dividing plates of the sludge conveying component box, some small-particle sludge falls directly from between the two dividing plates and is further crushed and dispersed by the rotating crushing knife 4 and then discharged to the feeding funnel 1, and some sludge (especially large-particle sludge) is stagnant between the two dividing plates. At this time, the relative movement of the two dividing plates produces a shift, so that the small-particle sludge stagnant between the two dividing plates falls after loosening, and the large-particle sludge stagnant between the two dividing plates is further crushed and falls after being shifted. During this process, the sludge stagnant between the two distributor plates is driven laterally in a first direction, so that the sludge is dispersed as it falls between the two distributor plates, allowing it to be dispersed and crushed within the crushing box 2. The crushing blades 4 can also drive the sludge to collide with the side walls of the crushing box 2 in a more dispersed manner when cutting the sludge, further improving the degree of sludge crushing and dispersion. Moreover, the increased dispersion of the sludge as it falls from the distributor plates allows the crushing roller 3 to load the sludge more evenly when driving the crushing blades 4 to crush the sludge, thereby reducing the load jamming of the crushing roller 3 caused by the concentrated fall of the sludge.

[0027] Regarding the structure of the drive member that drives the crushing roller 3, in a preferred embodiment, a servo motor can be selected to directly drive the crushing roller 3. In the illustrated embodiment, the structure of the drive member is not depicted, but this does not affect the ability of those skilled in the art to complete the transmission connection between the drive member and the crushing roller 3 during implementation.

[0028] In the illustrated embodiment, with respect to the structure of the present invention, to be more specific, the inner side surface of the dividing plate is inclined inward from top to bottom.

[0029] In the illustrated embodiment, a further optimization of the structure of the present invention is that the inner surface of the distributor plate is provided with vertically extending anti-slip protrusions 5. As shown in the figure, the anti-slip protrusions 5 facilitate relative displacement of sludge particles between the distributor plates when the two distributor plates move relative to each other, thereby facilitating further crushing of large-sized sludge particles stagnant between the two distributor plates.

[0030] In the illustrated embodiment, for the structure of the present invention, to be more specific, one of the dividing plates forms a movable dividing plate 6 slidably arranged on the crushing box 2, and the other forms a fixed dividing plate 7 fixedly installed on the crushing box 2.

[0031] In the illustrated embodiment, for the structure of the present invention, to be more specific, the crushing device also includes a guide plate 8 arranged on the upper side of the movable dividing plate 6, the upper end of the guide plate 8 is connected to the crushing box 2, and the lower end extends to the upper side of the movable dividing plate 6.

[0032] As shown in the figure, the upper end of the guide plate 8 is connected to the top of the crushing box 2, so as to prevent sludge from entering the side of the movable dividing plate 6 away from the fixed dividing plate 7 from the upper side of the movable dividing plate 6.

[0033] In the illustrated embodiment, for the structure of the present invention, to be more specific, the crushing box 2 is provided with an installation space on the side of the guide plate 8 away from the fixed dividing plate 7, and the movable dividing plate 6 crushing box 2 is provided with a slide rail 9 in the installation space, and the movable dividing plate 6 is slidably set on the slide rail 9.

[0034] As shown in the figure, an installation space can be separated in the crushing box 2 by the guide plate 8, so as to facilitate the installation of the slide rail 9 and the driving component that drives the movable dividing plate 6.

[0035] In the illustrated embodiment, with respect to the structure of the present invention, to be more specific, the dividing plate assembly further includes a cylinder 10 disposed in the installation space, and the cylinder 10 is connected to the movable dividing plate 6 .

[0036] As shown in the figure, a mounting frame is provided in the mounting space, and the cylinder 10 is fixed on the mounting frame.

[0037] The driving component for driving the movable dividing plate 6 is not limited to the form of the cylinder 10. In optional embodiments, other forms can also be used, such as using a crank slider mechanism to drive the movable dividing plate 6 to move back and forth, or using a gear rack mechanism to drive the movable dividing plate 6 to move back and forth.

[0038] In the illustrated embodiment, the structure of the present invention is further optimized in that the fixed dividing plate 7 includes an upper plate section 701 and a lower plate section 702 , and the inclination angle of the upper plate section 701 is smaller than the inclination angle of the lower plate section 702 .

[0039] As shown in the figure, the upper edge of the upper section extends to the top edge of the crushing box 2. This allows the sludge to be fed from the fixed distributor plate 7 when it enters between the two distributor plates. The upper plate section 701, with its smaller inclination angle, can serve as the main component for supporting the sludge, reducing the load on the movable distributor plate 6. Furthermore, the sludge can be dispersed and moved in the first direction when it slides down from the upper section. The lower plate section 702 has a larger inclination angle, which facilitates the rapid passage of sludge between the lower plate sections 702, further reducing the load on the movable distributor plate 6.

[0040] In the illustrated embodiment, a further optimization of the structure of the present invention is that the upper edge of the movable distributor plate 6 is higher than the upper edge of the lower plate section 702. As shown in the figure, this allows the movable distributor plate 6 to move laterally while reciprocating, thereby further promoting sludge dispersion.

[0041] In the illustrated embodiment, the structure of the present invention is further optimized in that the distance between the lower edges of the two dividing plates is greater than or equal to 3 cm and less than or equal to 8 cm, and the vertical projection of the rotation axis of the crushing roller 3 is located between the lower edges of the two dividing plates.

[0042] As shown in the figure, through such an arrangement, the sludge falling from the two dividing plates can be collided and crushed by the blades in a roughly vertical position, which can help the blades drive the sludge toward the side wall of the crushing box 2 on the left side as shown in the figure, so that the sludge can be further collided, crushed and loosened, and the sludge can also be conveniently discharged downward from the left side of the crushing roller 3.

[0043] The various embodiments in this specification are described in a progressive manner. Similar parts between the various embodiments can be referred to in conjunction with each other. Each embodiment focuses on the differences between the other embodiments. In particular, the system embodiments are generally similar to the method embodiments, so the description is relatively simple. For relevant parts, refer to the description of the method embodiments.

[0044] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

Claims

1. A sludge drying rotary kiln feeding and crushing device, characterized in that: include: A feeding funnel, the feeding funnel having an upper opening and a lower opening, the cross-sectional profile of the upper opening being larger than the cross-sectional profile of the lower opening, the dimension of the upper opening along a first direction being larger than the dimension of the upper opening along a second direction, the first direction and the second direction being both horizontal and perpendicular to each other; a crushing box, disposed on the upper side of the feed hopper, with the lower end of the crushing box communicating with the upper opening; a crushing roller assembly comprising a crushing roller rotatably mounted in the crushing box and a driving member capable of driving the crushing roller to rotate, wherein the axis of the crushing roller is parallel to the first direction, and the crushing roller is provided with crushing knives at intervals along the axis of the crushing roller; The dividing plate assembly includes two oppositely arranged dividing plates arranged on the upper side of the crushing roller, the dividing plates extend along the first direction, and the gap between the two dividing plates gradually decreases from top to bottom, wherein at least one of the dividing plates is configured to move back and forth along the first direction.

2. The sludge drying rotary kiln feeding and crushing device according to claim 1, characterized in that: The inner side surface of the dividing plate is inclined inward from top to bottom.

3. The sludge drying rotary kiln feeding and crushing device according to claim 1, characterized in that: The inner surface of the dividing plate is provided with anti-slip protrusions extending vertically.

4. The sludge drying rotary kiln feeding and crushing device according to claim 1, characterized in that: One of the dividing plates is formed as a movable dividing plate slidably arranged on the crushing box, and the other is formed as a fixed dividing plate fixedly installed on the crushing box.

5. The sludge drying rotary kiln feeding and crushing device according to claim 4, characterized in that: The crushing device further includes a material guide plate arranged on the upper side of the movable material dividing plate, wherein the upper end of the material guide plate is connected to the crushing box, and the lower end of the material guide plate extends to the upper side of the movable material dividing plate.

6. The sludge drying rotary kiln feeding and crushing device according to claim 5, characterized in that: The crushing box is provided with an installation space on a side of the material guide plate away from the fixed material dividing plate. The movable material dividing plate crushing box is provided with a slide rail in the installation space, and the movable material dividing plate is slidably arranged on the slide rail.

7. The sludge drying rotary kiln feeding and crushing device according to claim 6, characterized in that: The dividing plate assembly further includes a cylinder disposed in the installation space, and the cylinder is connected to the movable dividing plate.

8. The sludge drying rotary kiln feeding and crushing device according to claim 4, characterized in that: The fixed dividing plate includes an upper plate section and a lower plate section, and the inclination angle of the upper plate section is smaller than the inclination angle of the lower plate section.

9. The sludge drying rotary kiln feeding and crushing device according to claim 8, characterized in that: The upper edge of the movable dividing plate is higher than the upper edge of the lower plate section.

10. The sludge drying rotary kiln feeding and crushing device according to claim 6, characterized in that: The distance between the lower edges of the two dividing plates is greater than or equal to 3 cm and less than or equal to 8 cm, and the vertical projection of the rotation axis of the crushing roller is located between the lower edges of the two dividing plates.

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