Energy-saving sludge drying rack

Abstract

The utility model discloses an energy-saving sludge drying frame which comprises a supporting frame body, a plurality of trays are arranged on the supporting frame body, a first tray is horizontally arranged in the middle of the supporting frame body, a plurality of second trays are arranged on the upper side of the middle of the supporting frame body at equal intervals, and the upward inclination angle of the second trays ranges from 10 degrees to 15 degrees. A plurality of third trays with the downward inclination angle ranging from 10 degrees to 15 degrees at equal intervals are arranged on the lower side of the middle position of the supporting frame body. The device has the advantages of uniform heating, energy conservation and environmental protection.

Description

Technical Field

[0001] The utility model relates to a sludge drying rack, in particular to the field of an energy-saving sludge drying rack. Background Art

[0002] At present, the way of sludge reduction treatment is that after simple pretreatment of harmful sludge, the sludge is placed on a drying rack, and the drying rack is placed in a sludge low-temperature drying device, and the hot air in the drying device is used to blow it dry. On an ordinary sludge drying rack, the upper tray and the lower tray are not easily blown by the wind, and the air flow speed near the bottom is slow, seriously affecting heat exchange, and the drying efficiency and drying effect cannot be guaranteed. Therefore, the overall drying time is relatively long, time-consuming and power-consuming, and the position needs to be changed during drying, which is time-consuming and laborious.

[0003] In a waste drying material device with a patent number of 201820248620.0 applied by the applicant, all trays are inclined upward by 30° compared with the horizontal plane. Although the drying effect is better than that of the material device with horizontally placed trays, the air flow speed near the bottom of the material device is still very slow, affecting heat exchange.

[0004] Therefore, the existing drying rack has problems of uneven heat reception of sludge during drying, time-consuming, power-consuming and laborious during use. Therefore, we urgently need an energy-saving sludge drying rack. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the deficiencies existing in the prior art and provide an energy-saving sludge drying rack. It has the advantages of uniform heat reception, energy conservation and environmental protection.

[0006] The technical solution adopted by the utility model to solve the above problems is: an energy-saving sludge drying rack, including a support frame body, a plurality of trays are arranged on the support frame body, a first tray placed horizontally is arranged at the middle position of the support frame body, a plurality of second trays inclined upward at an equal distance by an angle of 10°-15° are arranged above the middle position of the support frame body, and a plurality of third trays inclined downward at an equal distance by an angle of 10°-15° are arranged below the middle position of the support frame body.

[0007] In the aforementioned energy-saving sludge drying rack, the support frame body includes an intermediate support, and the intermediate support is horizontally arranged at the middle position between the left and right sides of the support frame body; a plurality of upper supports arranged at equal distances are arranged above the intermediate support, and the upper supports are inclined upward by an angle of 10°-15°; a plurality of lower supports arranged at equal distances are arranged below the intermediate support, and the lower supports are inclined downward by an angle of 10°-15°, and each support is used for placing the tray.

[0008] In the aforementioned energy-saving sludge drying rack, in order to enable each tray to receive uniform air flow, the height of the rear end of each upper support clip is the same as the height of the front end of the adjacent upper support clip; the height of the rear end of each lower support clip is the same as the height of the front end of the adjacent lower support clip.

[0009] In the aforementioned energy-saving sludge drying rack, a cross-shaped reinforcing rib is provided at the rear side of the support frame body, making the support frame body more firm without affecting gas flow.

[0010] In the aforementioned energy-saving sludge drying rack, the outer shapes of the first tray, the second tray, and the third tray are all rectangular, and a number of ventilation holes are evenly distributed on all trays, improving the drying efficiency and facilitating cleaning at the same time.

[0011] In the aforementioned energy-saving sludge drying rack, universal wheels are connected below the support frame body, facilitating the overall handling and movement.

[0012] Compared with the prior art, in the present utility model, the middle first tray is placed horizontally, the upper second tray is placed with an upward inclination of 10° to 15°, and the lower third tray is placed with a downward inclination of 10° to 15°. When the heating fan is fixed and the air flow direction is horizontal, the sludge on the trays can also be evenly heated, without affecting the heat exchange between the upper and lower parts. The drying time of the sludge on all trays is shortened, saving time and electricity, and being energy-saving and environmentally friendly.

[0013] Furthermore, by adopting the support clip arrangement, while playing a limiting role, each tray can move, facilitating the handling work of workers.

[0014] In summary, the present utility model has the advantages of simple structure, uniform heating, energy-saving and environmental protection. Brief Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a schematic structural diagram of the side of the present utility model;

[0017] Figure 3 is a schematic structural diagram of the support frame body of the present utility model;

[0018] Figure 4 is a schematic working structural diagram of the present utility model;

[0019] The reference signs in the drawings are: 1, support frame body; 11, middle support clip; 12, upper support clip; 13, lower support clip; 14, reinforcing rib; 21a, first tray; 21b, second tray; 21c, third tray; 211, ventilation hole; 3, universal wheel. Detailed Description of the Embodiment

[0020] The technical solution of the present invention will be further specifically described below through embodiments in conjunction with the accompanying drawings.

[0021] Embodiment 1

[0022] An energy-saving sludge drying rack, as Figures 1 - 3 shown, is composed of a support frame body 1, a first tray 21a, a second tray 21b, a third tray 21c, and universal wheels 3.

[0023] Middle supports 11 are provided at the middle positions on the left and right sides of the support frame body 1, and the middle supports 11 are horizontally arranged; several upper supports 12 are arranged at equal intervals on the upper side of the middle supports 11, and the upward inclination angle of the upper supports 12 is 10° - 15°; several lower supports 13 are arranged at equal intervals on the lower side of the middle supports 11, and the downward inclination angle of the lower supports 13 is 10° - 15°.

[0024] The height of the rear end in each of the upper supports 12 is the same as the height of the front end of the adjacent upper support 12; the height of the rear end in each of the lower supports 13 is the same as the height of the front end of the adjacent lower support 13.

[0025] A cross-shaped reinforcing rib 14 is provided at the rear side of the support frame body 1, and the reinforcing rib 14 is a galvanized round steel with a diameter of twelve.

[0026] The first tray 21a is placed on the middle support 11, the second tray 21b is placed on each of the upper supports 12, the third tray 21c is placed on each of the lower supports 13. The outer shapes of the trays are all rectangular, and several ventilation holes 211 are evenly distributed on each tray. The diameter of the ventilation holes 211 is 4 mm, and the distance between each ventilation hole 211 is 8 mm. This can not only increase ventilation and improve the drying efficiency, but also prevent the sludge from falling through the ventilation holes.

[0027] Universal wheels 3 are connected below the support frame body 1, which facilitates the overall quick entry of the drying rack into the sludge low-temperature drying equipment.

[0028] During use, as Figure 4 shown, it is placed according to the air flow direction, and the best thermal circulation in the entire oven can be achieved.

[0029] Through fluent fluid thermal analysis and calculation, the wind speed and heat energy exchange conditions at the bottom and top of the drying rack of the present utility model are similar. Specifically, as shown in Table 1, the entire heat flux density range is between 5.03 - 6.96 W / ㎡. Compared with a waste drying material device with the original patent number 201820248620.0, the wind speed flow is accelerated, the sludge on each tray is heated more evenly, the drying time of the sludge on all trays is significantly shortened, saving time and electricity, and being energy-saving and environment-friendly.

[0030] Table 1 Unit: W / ㎡

[0031]

Claims

1. An energy-saving sludge drying rack, characterized in that: It includes a support frame body (1). At the middle position of the support frame body (1), there is a horizontally placed first tray (21a). At the upper side of the middle position of the support frame body (1), there are several second trays (21b) that are equally spaced and inclined upward at an angle of 10° to 15°. At the lower side of the middle position of the support frame body (1), there are several third trays (21c) that are equally spaced and inclined downward at an angle of 10° to 15°.

2. The energy-saving sludge drying rack according to claim 1, characterized in that: On the support frame body (1), there is an intermediate holder (11). The intermediate holder (11) is horizontally arranged at the middle positions on the left and right sides of the support frame body (1). At the upper side of the intermediate holder (11), there are several equally spaced upper holders (12). The upper holders (12) are inclined upward at an angle of 10° to 15°. At the lower side of the intermediate holder (11), there are several equally spaced lower holders (13). The lower holders (13) are inclined downward at an angle of 10° to 15°.

3. The energy-saving sludge drying rack according to claim 2, characterized in that: The height of the rear end in each of the upper holders (12) is the same as the height of the front end of the adjacent upper holder (12).

4. The energy-saving sludge drying rack according to claim 2, characterized in that: The height of the rear end in each of the lower holders (13) is the same as the height of the front end of the adjacent lower holder (13).

5. The energy-saving sludge drying rack according to claim 1, characterized in that: At the rear side of the support frame body (1), there is a cross-shaped reinforcing rib (14).

6. The energy-saving sludge drying rack according to claim 5, wherein: The diameter of the reinforcing rib (14) is 10 - 15 mm.

7. The energy-saving sludge drying rack according to claim 1, wherein: The first tray (21a), the second tray (21b), and the third tray (21c) are all rectangular trays. A number of ventilation holes (211) are evenly distributed on the rectangular trays.

8. The energy-saving sludge drying rack according to claim 7, characterized in that: The diameter of the ventilation holes (211) is 3 - 5 mm, and the distance between each ventilation hole (211) is 6 - 10 mm.

9. The energy-saving sludge drying rack according to claim 1, wherein: Below the support frame body (1), there are universal wheels (3) connected.

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