Sewage sludge dewatering and drying device

Abstract

The utility model belongs to the field of sludge treatment, and particularly relates to a sewage sludge dewatering and drying device which comprises a dewatering tower, and a feeding end seat and a discharging end seat are respectively arranged at the upper part and the lower part of the dewatering tower; the dewatering mechanism comprises a slope plate arranged in an inner cavity of the dewatering tower, the edge of the slope plate is provided with a protruding protection plate, the middle of the slope plate is provided with a water leakage plate provided with water leakage holes, the lower portion of the slope plate is connected to the output end of a vibration table, and water leaked from the water leakage plate is transmitted outwards through a drainage end base; the dewatering mechanism is arranged in the dewatering tower in a laminated mode, sludge is dewatered layer by layer under the action of vibration and gravity of the vibration table, occupied space of the dewatering process is reduced, and energy loss of sludge conveying is reduced. The movable opening plate is arranged at the position of the drying box, the protruding part of the notch of the opening plate is in direct contact with the dewatered sludge, the sludge is prevented from entering the drying box in a hardened state, and the sludge drying effect can be improved by opening the sludge.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of sludge treatment, concretely relates to a dewatering and drying device for sewage sludge. BACKGROUND

[0002] The dewatering and drying device for sewage sludge is a device for reducing the water content of sludge, facilitating transportation, stacking, utilization or further treatment. Its main function is to remove most of the water in the sludge through physical methods, usually including dewatering (mechanical dewatering) and drying (natural evaporation), and the dewatering and drying device for sewage sludge is widely used in industrial production, domestic sewage and municipal sewage treatment plants for dewatering treatment of sludge, reducing its volume and weight, and facilitating subsequent treatment and utilization.

[0003] Because the sludge contains a large amount of water, direct drying requires a large amount of time and energy, and needs to be dewatered before sludge drying. The existing dewatering device and drying device occupy a large space, which has disadvantages. UTILITY MODEL CONTENT

[0004] (I) Utility model purpose

[0005] To solve the technical problems in the background art, the utility model provides a dewatering and drying device for sewage sludge, which has the characteristics of continuous dewatering and drying and small space occupation.

[0006] (II) Technical scheme

[0007] To solve the above technical problems, the utility model provides a dewatering and drying device for sewage sludge, which comprises a dewatering tower, an inlet end seat and an outlet end seat are arranged at the upper and lower parts of the dewatering tower respectively;

[0008] The dewatering mechanism comprises a slope plate arranged in the inner cavity of the dewatering tower, the edge of the slope plate is provided with a raised guard plate, and the middle part is provided with a water leakage plate with water leakage holes, the lower part of the slope plate is connected to the output end of the vibration table, and the water leaked from the water leakage plate is transmitted to the outside through the drainage end seat;

[0009] The transmission mechanism comprises a transmission table arranged behind the dewatering tower, the transmission table is provided with a conveyor belt, and the upper part is provided with a drying box;

[0010] The drying mechanism comprises a heating end seat spacedly arranged on the drying box, and the end face of the heating end seat facing the conveyor belt is formed with a heater;

[0011] The opening mechanism comprises a sealing plate arranged at the front end of the drying box, the sealing plate is symmetrically provided with a cylinder, the output end of the cylinder is provided with a movable piston rod, and the other end of the piston rod is connected to an opening plate with a notch at the bottom.

[0012] Preferably, a transmission gap is left between the inner wall of the dehydration tower and the slope plate, and the end of the slope plate is provided with a downward inclined guide plate.

[0013] Preferably, the slope plate is provided with three groups, and the three groups of slope plates form an "S-shaped" sludge transmission channel.

[0014] Preferably, the water leakage holes are arranged on the water leakage plates of the three groups of slope plates, and the number of water leakage holes increases layer by layer.

[0015] Preferably, the front end of the drying box is closed by a sealing plate, and the end is shaped with a baffle close to the conveying belt.

[0016] Preferably, the bottom of the opening plate is provided with a notch, and the protruding part of the notch directly contacts the dehydrated sludge.

[0017] The above technical scheme of the utility model has the following beneficial technical effects:

[0018] 1. The dehydration mechanism is stacked in the dehydration tower, and under the vibration of the vibration table and the action of gravity, the sludge is dehydrated layer by layer, the space occupation of the dehydration process is reduced, and the energy loss of the sludge transmission is reduced.

[0019] 2. The movable opening plate is arranged at the drying box, the protruding part of the notch directly contacts the dehydrated sludge, prevents the sludge from being in a hardened state and entering the drying box, and the opening of the sludge can improve the drying effect of the sludge. DRAWINGS

[0020] Fig. 1 The structure of the utility model is shown in the figure;

[0021] Fig. 2 The internal structure of the dehydration tower of the utility model is shown in the figure;

[0022] Fig. 3 The internal structure of the drying box of the utility model is shown in the figure.

[0023] Reference signs:

[0024] 1. Dehydration tower; 11, feed end seat; 12, discharge end seat; 21, slope plate; 22, guard plate; 23, water leakage plate; 24, vibration table; 25, drainage end seat; 31, transmission table; 32, conveying belt; 33, drying box; 41, heating end seat; 42, heater; 51, sealing plate; 52, air cylinder; 53, piston rod; 54, opening plate. CONCRETE IMPLEMENTATION

[0025] In order to make the purpose, technical scheme and advantages of the utility model more clearly understood, the utility model will be further described in detail below in conjunction with specific embodiments and with reference to the drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of the known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0026] As Figs. 1-3 shown, the utility model provides a kind of sewage sludge's dewatering and drying device, including dehydration tower 1, dehydration tower 1 is separately provided with feed end seat 11 and discharge end seat 12 in upper and lower parts;

[0027] Dewatering mechanism includes the slope plate 21 being arranged in the inner chamber of dehydration tower 1, the edge of slope plate 21 is provided with the raised baffle 22, and the middle part is equipped with the water leakage plate 23 being opened water leakage hole, the lower part of slope plate 21 is connected to the output end of vibration table 24, and the water that leaks through water leakage plate 23 is transmitted to outside by drainage end seat 25;

[0028] Transmission mechanism includes transmission table 31 being arranged in the rear of dehydration tower 1, and the transmission belt 32 is built-in in transmission table 31, and drying box 33 is installed on the upper part;

[0029] Drying mechanism includes heating end seat 41 being installed on drying box 33 at intervals, and the end face of heating end seat 41 towards transmission belt 32 is shaped with heater 42;

[0030] Opening mechanism includes the sealing plate 51 being installed in the front end of drying box 33, and the cylinder 52 is symmetrically installed on sealing plate 51, and the movable piston rod 53 is installed on the output end of cylinder 52, and the other end of piston rod 53 is connected to the opening plate 54 being opened notched in bottom.

[0031] It needs to be explained that transmission gap is left between slope plate 21 and the inner wall of dehydration tower 1, and sludge moves to gap place through inclined slope plate 21, and the end of slope plate 21 is provided with downwardly inclined guide plate, and guide plate can deliver sludge to the slope plate 21 below to carry out dehydration again.

[0032] It can be understood that three groups of slope plate 21 are arranged, and "S type" sludge transmission channel is formed between three groups of slope plate 21;Through the design of "S type" sludge transmission channel, the dehydration of sludge is carried out in layers from top to bottom, reduces the occupation of ground space, and reduces the energy consumption of sludge transmission by gravity.

[0033] In the embodiment, dewatering mechanism is arranged in layers in dehydration tower 1, and in working, sludge passes through the water leakage plate 23 of slope plate 21, and because the water leakage plate 23 installed on three groups of slope plate 21 is all opened water leakage hole, the number of water leakage holes increases layer by layer, and under the vibration of vibration table 24 and the action of gravity, sludge is dehydrated layer by layer to assist subsequent drying;

[0034] The movable opening plate 54 is arranged at the drying box 33, the piston rod 53 is driven by the air cylinder 52 to move in the sealing plate 51, the movable opening plate 54 is moved to the conveying belt 32, the bottom of the movable opening plate 54 is provided with a gap, the convex part of the gap directly contacts the dewatered sludge, the sludge in the agglomerated state is prevented from entering the drying box 33, and the sludge is opened, so that the drying effect of the sludge is improved.

[0035] In order to ensure the sealing of the front and rear ends of the drying box 33, further, the front end of the drying box 33 is sealed by the sealing plate 51, and the end is formed with a baffle close to the conveying belt 32.

[0036] It should be understood that the above specific embodiments of the present application are only used for illustrative or explanatory purposes of the principles of the present application, and do not constitute a limitation on the present application. Therefore, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present application shall be included in the protection scope of the present application. In addition, the appended claims of the present application are intended to cover all changes and modifications falling within the scope and boundary of the appended claims, or the equivalent forms of such scope and boundary.

Claims

1. A device for dewatering and drying sewage sludge, characterized in that Including dehydration tower (1), the upper and lower parts of dehydration tower (1) are respectively provided with feed end seat (11) and discharge end seat (12); The dehydration mechanism includes a slope plate (21) arranged in the inner cavity of the dehydration tower (1), the edge of the slope plate (21) is provided with a raised guard plate (22), and the middle part is provided with a water leakage plate (23) with water leakage holes, the lower part of the slope plate (21) is connected to the output end of the vibration table (24), and the water leaked by the water leakage plate (23) is transmitted to the outside through the drainage end seat (25); The transmission mechanism includes a transmission table (31) arranged behind the dehydration tower (1), the transmission table (31) is provided with a conveying belt (32), and the upper part is provided with a drying box (33); The drying mechanism includes a heating end seat (41) arranged on the drying box (33), and the end face of the heating end seat (41) is provided with a heater (42) facing the conveying belt (32); The opening mechanism includes a sealing plate (51) arranged at the front end of the drying box (33), the sealing plate (51) is symmetrically provided with a cylinder (52), the output end of the cylinder (52) is provided with a movable piston rod (53), the other end of the piston rod (53) is connected to an opening plate (54) with a notch at the bottom.

2. A device for dewatering and drying sewage sludge according to claim 1, characterized in that Transmission gap is left between the slope plate (21) and the inner wall of the dehydration tower (1), and the end of the slope plate (21) is provided with a downward inclined guide plate.

3. A device for dewatering and drying sewage sludge according to claim 1, characterized in that The slope plate (21) is provided with three groups, and the three groups of slope plates (21) form an "S-shaped" sludge transmission channel.

4. A device for dewatering and drying sewage sludge according to claim 3, characterized in that The water leakage plates (23) arranged on the three groups of slope plates (21) are all provided with water leakage holes, and the number of water leakage holes increases layer by layer.

5. A device for dewatering and drying sewage sludge according to claim 1, characterized in that The front end of the drying box (33) is closed by the sealing plate (51), and the end is formed with a baffle close to the conveying belt (32).

6. A device for dewatering and drying sewage sludge according to claim 1, characterized in that The bottom of the opening plate (54) is provided with a notch, and the protruding part of the notch directly contacts the dehydrated sludge.

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