Filter pressing device for gravel sand making

Abstract

The utility model discloses a filter pressing device for gravel sand making, which comprises a rack, a first conveying belt, a scraper, a compression roller component and a cleaning wheel, the first conveying belt is used for conveying water-containing fine sand and is arranged on the rack, and a driving wheel is arranged at the output end of the first conveying belt; the scraper is close to the upper surface of the output end of the first conveying belt, is arranged on the rack and is used for scraping the fine sand output by the first conveying belt; the compression roller assembly is close to the upper surface of the output end of the first conveying belt, is arranged on the rack and is used for filter-pressing moisture in the fine sand; the sweeping wheel is close to the lower surface of the output end of the first conveying belt, is arranged on the rack, is connected with a driving wheel of the first conveying belt through a belt, and is used for sweeping out fine sand on the lower surface of the first conveying belt; according to the filter pressing device for gravel sand making, sweeping is conducted through the sweeping wheel driven by the driving wheel of the first conveying belt, the structure is simple, and the dewatering and filter pressing functions of gravel sand making can be efficiently achieved.

Description

Technical Field

[0001] The utility model relates to the field of filter press equipment, and more specifically, to a filter press device for gravel sand making. Background Art

[0002] In the gravel sand making process, the finally produced fine sand contains a large amount of moisture, and the fine sand needs to be dehydrated; in the existing fine sand dehydration and filter press device of the process, a conveyor belt is used to convey the moisture-containing fine sand, and another set of rollers is used to squeeze the conveyor belt to filter out the moisture; through multiple squeezes and filtrations by the rollers on the production line, a cake-shaped fine sand mass with a lower water content is obtained, and then the sand mass on the surface of the conveyor belt is scraped off by a scraper.

[0003] The above-mentioned gravel sand making filter press device can better achieve the dehydration of fine sand. However, in order to realize the function of squeezing and dehydrating fine sand, most of the surface of its conveyor belt adopts a filter cloth structure, and a large margin needs to be left for the cutting depth of the scraper to avoid damaging the filter cloth. Therefore, a large amount of fine sand still remains on the surface of the filter cloth of the conveyor belt after being scraped by the scraper, reducing the filter press efficiency of gravel sand making. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the shortcomings of the background art and provide a filter press device for gravel sand making.

[0005] The embodiments of the utility model are realized by the following technical solutions:

[0006] A filter press device for gravel sand making, comprising:

[0007] A frame;

[0008] A first conveyor belt for conveying moisture-containing fine sand, the first conveyor belt is arranged on the frame, and a driving wheel is arranged at the output end of the first conveyor belt;

[0009] A scraper, which is arranged on the frame close to the upper surface of the output end of the first conveyor belt for scraping the fine sand output by the first conveyor belt;

[0010] A press roller assembly, which is arranged on the frame close to the upper surface of the output end of the first conveyor belt for filtering the moisture in the fine sand;

[0011] A cleaning wheel, which is arranged on the frame close to the lower surface of the output end of the first conveyor belt and is connected to the driving wheel of the first conveyor belt by a belt for sweeping out the fine sand on the lower surface of the first conveyor belt.

[0012] Further, it further includes a second conveyor belt inclinedly disposed below the cleaning wheel. A runner at the higher end of the second conveyor belt is connected to the cleaning wheel by a belt to convey the fine sand cleaned out by the cleaning wheel.

[0013] Further, the second conveyor belt includes a frame with runners rotatably installed at both ends, and a filter cloth sleeved on the frame and the runners at both ends. Support frames extending downward are provided on both sides of the frame;

[0014] The higher end of the second conveyor belt is hinged to the frame. A set of sliders that can slide up and down are also provided on the frame below the second conveyor belt. Extension arms that support below the support frames are provided on the sliders. A set of connecting rods are hinged at the upper ends of the sliders, and the upper ends of the connecting rods are hinged to the outer peripheral side part of the center of the runner at the higher end of the second conveyor belt.

[0015] Further, a rubber cushion block for contacting the extension arm is provided at the bottom end of the support frame.

[0016] Further, a sliding sleeve with a through groove on the side is installed on the frame. The slider is slidably disposed within the sliding sleeve, and the extension arm passes through the through groove of the sliding sleeve to extend below the second conveyor belt.

[0017] Further, the diameter of the driving wheel on the first conveyor belt is larger than the diameter of the cleaning wheel, and the diameter of the cleaning wheel is larger than the diameter of the runner on the second conveyor belt.

[0018] Further, it further includes a diagonal support arm provided on the frame. A scraper for scraping the fine sand at the output end of the first conveyor belt is installed on the diagonal support arm.

[0019] Further, a set of horizontal axes are provided at the upper end of the diagonal support arm. The scraper is hinged to the horizontal axes; in the length direction of the scraper, the scraper includes a short arm section on one side of the horizontal axes and a long arm section on the other side of the horizontal axes. Among them, the free end of the long arm section is used for scraping the fine sand;

[0020] A set of support seats located below the scraper are also provided on the diagonal support arm. Two sets of ejector rods are threadedly connected to the support seats, and the short arm section and the long arm section are each supported by a set of the ejector rods.

[0021] The technical solution of the embodiment of the present utility model has at least the following advantages and beneficial effects:

[0022] In the pressure filtration device for gravel sand making of the present utility model, the output end of the first conveyor belt is extruded by a pressure roller assembly to filter out the moisture in the fine sand, and the fine sand is scraped off by a scraper. For the fine sand that is not scraped off on the lower end surface of the output end of the first conveyor belt, it is cleaned by a cleaning wheel driven by the driving wheel of the first conveyor belt. The structure is simple, and the dehydration and pressure filtration function of gravel sand making can be efficiently realized. Brief Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of the pressure filtration device for gravel sand making of the present utility model;

[0024] Figure 2 is Figure 1 an enlarged view of part A of;

[0025] Reference numerals: 1 - frame, 2 - pressure roller assembly, 3 - first conveyor belt, 30 - driving wheel, 4 - scraper, 40 - long arm section, 41 - short arm section, 5 - cleaning wheel, 6 - second conveyor belt, 60 - frame, 61 - filter cloth, 62 - runner, 63 - support frame, 630 - cushion block, 7 - slider, 71 - extension arm, 72 - connecting rod, 8 - inclined support arm, 80 - horizontal axis, 82 - sliding sleeve, 9 - support seat, 90 - ejector rod. Detailed Description of the Preferred Embodiments

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0027] Referring to Figure 1 and Figure 2 , the present utility model discloses a pressure filtration device for gravel sand making, including a frame 1, a pressure roller assembly 2, a first conveyor belt 3, a scraper 4, a cleaning wheel 5, a second conveyor belt 6, a slider 7, an inclined support arm 8, and a support seat 9.

[0028] Among them, referring to Figure 1 , the first conveyor belt 3 is used to convey water-containing fine sand. The first conveyor belt 3 is inclinedly arranged on the frame 1, and the higher end of the first conveyor belt 3 is the output end. A driving wheel 30 is provided at the higher end of the first conveyor belt 3.

[0029] The pressure roller assembly 2 is arranged on the frame 1 above the first conveyor belt 3, and the extrusion surface of the pressure roller assembly 2 is close to the upper surface of the output end of the first conveyor belt 3 for pressure filtering the moisture in the fine sand.

[0030] The scraper 4 is inclinedly fixed on the frame 1 through the inclined support arm 8. Referring toFigure 1 Among them, the right end of the scraper 4 is close to the upper surface of the output end of the first conveyor belt 3, used to scrape the fine sand output by the first conveyor belt 3, and discharge it along the inclined upper surface of the scraper 4.

[0031] The cleaning wheel 5 is arranged on the frame 1 close to the lower surface of the output end of the first conveyor belt 3. The cleaning wheel 5 is connected to the driving wheel 30 of the first conveyor belt 3 by a belt, used to sweep out the fine sand on the lower surface of the first conveyor belt 3. The surface of the cleaning wheel 5 is a soft brush structure, which is not easy to damage the filter cloth on the surface of the first conveyor belt 3.

[0032] The second conveyor belt 6 is inclined and arranged below the cleaning wheel 5, and the rotating wheel 62 at the higher end of the second conveyor belt 6 is connected to the cleaning wheel 5 by a belt. The fine sand swept out by the cleaning wheel 5 falls onto the lower second conveyor belt 6 and is output through the second conveyor belt 6.

[0033] Refer to Figure 2 In one embodiment, the second conveyor belt 6 includes a frame 60. A set of rotating wheels 62 are provided at both ends of the frame 60. A filter cloth 61 is sleeved on the surface of the frame 60 and the two sets of rotating wheels 62. Through the rotation of the rotating wheel 62, the filter cloth 61 can be driven to rotate in a cycle for conveying.

[0034] Refer to Figure 2 Among them, support frames 63 extending downward are arranged on both sides of the frame 60. The support frames 63 do not interfere with the rotation of the filter cloth 61, and the second conveyor belt 6 can be supported by the support frames 63; the rotating wheel 62 at the higher end of the second conveyor belt 6 is hinged to the frame 1, so that the lower end of the second conveyor belt 6 is a free end that can be suspended.

[0035] A set of sliders 7 are also slidably arranged up and down on the frame 1 below the second conveyor belt 6. Specifically, a sliding sleeve 82 with a through groove on the side is installed on the frame 1. The slider 7 is slidably arranged in the sliding sleeve 82. An extension arm 71 for supporting the second conveyor belt 6 is provided on the side wall of the slider 7, and the extension arm 71 penetrates through the through groove of the sliding sleeve 82 to extend below the second conveyor belt 6.

[0036] Specifically, the extension arm 71 supports the lower end of the support frame 63, and a rubber cushion block 630 for contacting the extension arm 71 is arranged at the bottom end of the support frame 63.

[0037] Refer to Figure 2 One end of a set of connecting rods 72 is hinged to the upper end of the slider 7, and the upper end of the connecting rod 72 is hinged to the outer peripheral side of the center of the rotating wheel 62 at the higher end of the second conveyor belt 6. That is, the rotating wheel 62, the connecting rod 72 and the slider 7 form a connecting rod-slider mechanism. Under the rotation of the rotating shaft 62, the reciprocating up and down movement of the slider 7 is driven, and the reciprocating up and down movement of the extension arm 71 can be used to vibrate the second conveyor belt 6, which is beneficial to the discharge of fine sand.

[0038] In one embodiment, with reference to Figure 2 , the diameter of the driving wheel 30 on the first conveyor belt 3 is larger than that of the cleaning wheel 5, and the diameter of the cleaning wheel 5 is larger than that of the runner 62 on the second conveyor belt 6, so that the rotational speed of the runner 62 at the higher end on the second conveyor belt 6 is much greater than that of the driving wheel 30 finally, and the high-frequency up-and-down movement of the slider 7 is utilized.

[0039] With reference to Figure 2 , in one embodiment, the frame 1 is provided with an inclined support arm 8, and a set of horizontal axes 80 are arranged at the upper end of the inclined support arm 8; the scraper 4 is hinged to the horizontal axis 80; in the length direction of the scraper 4, the scraper 4 includes a short arm section 41 located on the left side of the horizontal axis 80 and a long arm section 40 located on the right side of the horizontal axis 80, wherein the free end of the long arm section 40 is used for scraping fine sand.

[0040] In order to facilitate the adjustment of the cutting depth of the scraper 4, a set of support seats 9 located below the scraper 4 are further arranged on the inclined support arm 8, and two sets of ejector rods 90 are threadedly connected to the support seats 9. The short arm section 41 and the long arm section 40 are each supported by a set of ejector rods 90. First, loosen the ejector rod 90 below the long arm section 40, so that the scraper 4 rotates clockwise due to the greater gravity of the long arm section 40, and the cutting depth of the scraper 4 becomes deeper. After the adjustment is completed, screw up the ejector rod 90 below the short arm section 41 to tighten the scraper 4, and vice versa.

[0041] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A pressure filtration device for gravel sand making, characterized in that Comprising: A frame (1); A first conveyor belt (3) for conveying water-containing fine sand, the first conveyor belt (3) being disposed on the frame (1), and a driving wheel (30) being provided at the output end of the first conveyor belt (3); A scraper (4) disposed on the frame (1) close to the upper surface of the output end of the first conveyor belt (3) for scraping the fine sand output by the first conveyor belt (3); A pressure roller assembly (2) disposed on the frame (1) close to the upper surface of the output end of the first conveyor belt (3) for filtering the water in the fine sand; A cleaning wheel (5) disposed on the frame (1) close to the lower surface of the output end of the first conveyor belt (3) and connected to the driving wheel (30) of the first conveyor belt (3) by a belt for sweeping out the fine sand on the lower surface of the first conveyor belt (3).

2. The pressure filtration device for gravel sand making according to claim 1, characterized in that, Further included is a second conveyor belt (6) disposed obliquely below the cleaning wheel (5), a runner (62) at the higher end of the second conveyor belt (6) being connected to the cleaning wheel (5) by a belt for conveying the fine sand cleaned out by the cleaning wheel (5).

3. The pressure filtration device for gravel sand making according to claim 2, characterized in that, The second conveyor belt (6) includes a frame (60) rotatably mounted with the runners (62) at both ends, and a filter cloth (61) sleeved on the frame (60) and the runners (62) at both ends, and support frames (63) extending downward are provided on both sides of the frame (60); The higher end of the second conveyor belt (6) is hinged to the frame (1), and a set of sliders (7) are also slidably provided up and down on the frame (1) below the second conveyor belt (6), an extension arm (71) for supporting below the support frame (63) being provided on the slider (7), and a set of connecting rods (72) being hinged to the upper end of the slider (7), the upper end of the connecting rod (72) being hinged to a position on the outer circumference of the center of the runner (62) at the higher end of the second conveyor belt (6).

4. The pressure filtration device for gravel sand making according to claim 3, characterized in that, A rubber cushion block (630) for contacting the extension arm (71) is provided at the bottom end of the support frame (63).

5. The pressure filtration device for gravel sand making according to claim 3, wherein, A sliding sleeve (82) with a through groove on the side is mounted on the frame (1), the slider (7) is slidably provided in the sliding sleeve (82), and the extension arm (71) penetrates through the through groove of the sliding sleeve (82) to extend below the second conveyor belt (6).

6. The pressure filtration device for gravel sand making according to claim 2, 3 or 4, characterized in that, The diameter of the driving wheel (30) on the first conveyor belt (3) is larger than the diameter of the cleaning wheel (5), and the diameter of the cleaning wheel (5) is larger than the diameter of the runner (62) on the second conveyor belt (6).

7. The pressure filtration device for gravel sand making according to claim 1, 2 or 3, characterized in that, Further included is a diagonal support arm (8) disposed on the frame (1), and a scraper (4) for scraping the fine sand at the output end of the first conveyor belt (3) is mounted on the diagonal support arm (8).

8. The pressure filtration device for gravel sand making according to claim 7, characterized in that, A set of transverse axes (80) is provided at the upper end of the diagonal brace arm (8), and the scraper (4) is hinged to the transverse axes (80); in the length direction of the scraper (4), the scraper (4) includes a short arm section (41) located on one side of the transverse axes (80) and a long arm section (40) located on the other side of the transverse axes (80), wherein the free end of the long arm section (40) is used for scraping fine sand; A set of support seats (9) is further provided on the diagonal brace arm (8) and located below the scraper (4), and two sets of ejector rods (90) are threadedly connected to the support seats (9), and the short arm section (41) and the long arm section (40) are each supported by a set of the ejector rods (90).

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