CN202148240U - Inlet mud box with baffle structure - Google Patents

Abstract

The utility model discloses an advance mud case of utensil baffling structure, the power distribution box comprises a box body, the box is equipped with into mud mouth and discharge gate, be provided with the baffling structure in the box, the discharge gate has the slope carriage apron, the baffling structure includes a plurality of baffling baffle, a plurality of baffling baffle set up on the inner wall that is the relative position of box, the baffling baffle that sets up on double-phase internal wall is crisscross distribution, increases the resistance through the baffling baffle, makes the flocculation effect improve greatly to effectively reduced the mud impact force, reduced water velocity, effectively utilized filter screen length. The utility model discloses in still disclose one kind and change the swift current board of slope into the mud case that advances of drainage structure. Remove water in advance through drainage structure to make the gravity dehydration section extension in the box, alleviate follow-up treatment capacity, reduced mud cake moisture content, meanwhile, also reduced the rate of recovery of solid.

Description

Inlet mud box with baffle structure

technical field

The utility model relates to a component used in mud purification equipment, in particular to a component in sludge dewatering equipment.

Background technique

At present, the mud inlet devices of the existing belt-type thickening and dewatering integrated machines in the market are all simple box structures, as shown in Figure 1, including a box body 1 mud inlet 2 and a discharge port 4 with an inclined slide plate 3, An emptying port 5 is provided at the bottom of the box. Usually, the sludge and liquid medicine are mixed evenly by the mixing device and then enter the box body 2 through the mud inlet 1 through the flange connection, and then flow into the thickener through the inclined slide plate 3 of the mud inlet box. The mud feeding device of the prior art has a large flow rate of sludge entering the box body 2, and the diameter of the mud feeding pipe is relatively small, so that the flow velocity of the flocculated sludge after entering the box body is very large, and the sludge is The residence time in the box is very short, and it even rushes directly to the filter belt at the front end of the thickener without staying, causing the flocs to diverge and the filter belt cannot be fully utilized, which is equivalent to shortening the length of sludge gravity dehydration, resulting in a direct impact on sewage. The mud dehydration effect makes the mud cake have a high moisture content, which cannot meet the increasing environmental protection requirements.

With the continuous strengthening of people's awareness of environmental protection and the continuous improvement of domestic and foreign environmental protection policies and regulations, the requirements for sewage treatment are getting higher and higher, especially for the moisture content of mud cake. This puts forward new and higher requirements for the belt filter press, which occupies the largest market share in the field of sludge dewatering. At the same time, due to energy shortage and limited land resources, it is necessary to use the limited space to maximize the functions. The moisture content of the mud cake is an important indicator to measure the quality of the dehydrator. At present, various manufacturers in the domestic and foreign markets are also reducing the moisture content of the mud cake through structural improvement.

Utility model content

Aiming at the above prior art, the utility model provides a mud inlet box with a baffle structure, which can effectively reduce the moisture content of the mud cake.

In order to solve the above-mentioned technical problems, a technical solution realized by the mud inlet box with baffle structure of the utility model is: it includes a box body, the box body is provided with a mud inlet port and a material outlet port, and a folding port is arranged in the box body. flow structure, the outlet has an inclined slide plate, and the baffle structure includes a plurality of baffles, the plurality of baffles are arranged on the inner wall of the box body at the opposite position, and the The baffles on the two opposite inner walls are distributed in a staggered manner.

Another technical proposal of the mud inlet box with baffle structure of the utility model is: it includes a box body, the box body is provided with a mud inlet port and a material outlet port, and a baffle structure is arranged in the box body. Wherein, the baffle structure may also include: a baffle plate arranged on the wall of the box body, the position of the baffle plate is close to the mud inlet and is substantially perpendicular to the mud inlet, the One end of the baffle plate is connected to the top wall near the mud inlet on the box body, and there is a gap between the other end and the bottom wall of the box body, and the gap is 40-80mm; the baffle plate A water filtering structure is provided between the outlet and the discharge port.

Wherein, the water filtration structure includes a filter belt, a filtrate pan and a drain; the filter belt is parallel to the bottom wall near the outlet on the box body, and the filtrate pan is located at the bottom of the filter belt. Below, the drain port is located at the bottom of the filtrate pan and leads to the outside of the box.

Compared with the prior art, the beneficial effects of the utility model are:

Due to the addition of baffles in the mud inlet box of the utility model, compared with the mud inlet box in the prior art, in the process of dehydrating the sludge, the time for the sludge to stay in the box is lengthened and the The flocculation effect is conducive to the further release of free water, which not only reduces the moisture content of the mud cake, but also reduces the solid recovery rate (solid recovery rate is also an important indicator to measure the quality of the dehydrator).

In addition, after the baffle is added, the impact force of the sludge flowing into the filter screen of the thickener from the discharge port is reduced, so that the sludge flows to the filter screen along the inclined slide plate, which can effectively use the length of the filter screen . On this basis, the water content of the sludge from the thickener can be further reduced by adding a filter belt, thereby reducing the water content of the mud cake that is finally shipped to the factory.

The mud inlet box of the utility model can be widely applied to the mud inlet position of any type of dewatering machine with any bandwidth, and its application prospect is very broad, which can meet the requirement of increasing solid content rate of mud cake.

Description of drawings

Fig. 1 is the schematic diagram of the structure of inlet mud box in the prior art;

Fig. 2 is a schematic structural diagram of an embodiment of the utility model inlet mud box;

Fig. 3 is a schematic structural diagram of another embodiment of the mud inlet box of the present invention.

In the picture:

1——box body 2——mud inlet 3——inclined slide plate

4——Discharge port 5——Empty port 6——Baffle plate

7——Filter belt 8——Filtrate tray 9——Drain outlet

Detailed ways

The utility model will be further described in detail below in conjunction with specific embodiments.

As shown in Figure 2, a specific embodiment of the mud inlet box with baffle structure of the present invention is that the mud inlet box includes a box body 1, and the box body 1 is provided with a mud inlet port 2 and has an inclined slide The discharge port 4 of the plate 3, the box body 1 is provided with a baffle structure, the mud inlet 2 of the mud inlet box is at the bottom of the box body, the baffle structure includes a plurality of baffle plates 6, the A plurality of baffles 6 are arranged on opposite inner walls of the box body 1 , and the baffles 6 arranged on two opposite inner walls are arranged in a staggered manner. In this embodiment, the distribution of the flow state in the box 1 is improved by adding baffles in the box 1 . After the mixed flow enters the box 1, the water flow hits the baffle 6, and its turbulent kinetic energy decreases, that is, the water velocity decreases, which increases its residence time in the box 1 and makes the material flocculate better. At the same time, the impact force of the sludge is also reduced. Reduce together, so that the sludge can slide into the filter belt of the thickener along the inclined slide plate 3 provided at the discharge port 4 of the mud inlet box, so that the effective utilization rate of the filter screen is improved.

As shown in Figure 3, a specific embodiment of the mud inlet box with baffle structure of the present invention is that the mud inlet box includes a box body 1, and the box body 1 is provided with a mud inlet port 2 and a discharge port 4 The mud inlet 2 of the mud inlet box is on the upper part of the box body 1, and the baffle structure includes a baffle baffle 6 arranged on the wall of the box body 1, and the position of the baffle baffle 6 is close to the inlet The mud port 2 is substantially perpendicular to the mud inlet 2, one end of the deflector 6 is connected to the top wall near the mud inlet 2 on the box body 1, and the other end is connected to the bottom wall of the box body. There is a gap between them, and the gap is 40-80 mm. In this baffle structure: a water filter structure is provided between the baffle plate 6 and the discharge port 4, and the water filter structure includes a filter belt 7, a filtrate pan 8 and a water outlet 9; the filter The belt 7 is parallel to the bottom wall near the discharge port 4 on the casing 1, the filtrate pan 8 is located below the filter belt 7, and the drain 9 is located at the bottom of the filtrate pan 8. The bottom and leads to the outside of the box body 1. This embodiment is suitable for sludge with a high moisture content, not only is provided with a mainstream baffle 6, but also the original inclined slide plate 3 at the outlet of the box body is replaced with a replaceable filter belt 7, as shown in Figure 3 , and connected to the filtrate disc 8 under the filter belt 7, a large amount of free water is released through the filter belt 7, making the sludge thicker, reducing the water content, and achieving the purpose of concentration. The filtrate passes through the filtrate disc 8 before entering the main machine The outlet 9 at the bottom discharges the casing.

There is no blocking device in the box of the existing equipment, and the sliding plate is a solid structure, so that the fast-flowing sewage enters the box and directly rushes to the filter screen of the concentrator, the flocs diverge, and the utilization rate of the filter screen in the length direction is low, resulting in The final mud cake has a higher moisture content. The structures in the two embodiments of the mud inlet box of the utility model can reduce the water content of the sludge without increasing the external dimensions of the existing box body. The resistance is increased by the baffle plate, which greatly improves the flocculation effect, effectively reduces the impact force of sludge, reduces the water flow speed, and effectively utilizes the length of the filter screen. The water is withdrawn in advance through the filter structure, so that the gravity dehydration section in the box is lengthened, the amount of subsequent treatment is reduced, the moisture content of the mud cake is reduced, and at the same time, the recovery rate of solids is also reduced. Utilize the mud inlet box of the utility model to transform a series of belt-type concentration and dehydration integrated machines such as DNTY2500, DNTY3000, and DNY2000. After trial use in Wuxi Taihu Sewage Plant, the No. 2 Sewage Treatment Plant in Jinzhong City, Shanxi Province and Suqian Sewage Treatment Plant in Jiangsu Province, Greatly improved the overall dehydration effect of the equipment.

Although the utility model has been described above in conjunction with the drawings, the utility model is not limited to the above-mentioned specific embodiments, and the above-mentioned specific embodiments are only illustrative, rather than restrictive. Under the enlightenment of the utility model, many deformations can be made without departing from the purpose of the utility model, and these all belong to the protection of the utility model.

Claims (4)

1. the mud box that advances with baffling structure comprises casing (1), and said casing (1) is provided with mud inlet (2) and discharge port (4), it is characterized in that, said casing is provided with the baffling structure in (1).

2. the mud box that advances with baffling structure according to claim 1; It is characterized in that: said discharge port (4) has inclination slide carriage (3); Said baffling structure comprises a plurality of baffles (6); Said a plurality of baffle (6) is arranged on the inwall that is relative position of said casing (1), and the baffle (6) that is arranged on two opposed inner walls is interspersed.

3. the mud box that advances with baffling structure according to claim 1; It is characterized in that: said baffling structure comprises that one is arranged on the baffle (6) on said casing (1) wall; The position of said baffle (6) is near mud inlet (2) and vertical basically with mud inlet (2); Near the roof that is positioned on one end of said baffle (6) and the said casing (1) mud inlet (2) is connected, and has the gap between the diapire of its other end and casing, and said gap is 40～80mm; Be provided with filter structure between said baffle (6) and the said discharge port (4).

4. the mud box that advances with baffling structure according to claim 3 is characterized in that: said filter structure comprises strainer (7), filtrating dish (8) and water port (9); Be positioned near the said discharge port (4) diapire on said strainer (7) and the said casing (1) and think parallelly, said filtrating dish (8) is positioned at the below of said strainer (7), and said water port (9) is located at the bottom of said filtrating dish (8) and leads to the outside of casing (1).

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