CN211688799U - Sludge drying treatment equipment - Google Patents

Abstract

A sludge drying treatment equipment includes a dewatering mechanism, a water collecting tank and a drying mechanism. There are a plurality of water filtering holes, one end is provided with a feeding port on the peripheral surface, and the other end is open. One end of the rotating shaft close to the opening is provided with a blocking piece, and an interval is set between the blocking piece and the dewatering outer cylinder, an annular moving piece is slidably sleeved in the interval, and an elastic piece is arranged between the annular moving piece and the blocking piece; Below the dewatering outer cylinder; the length direction of the drying mechanism is respectively provided with an inlet and an outlet, an oblique baffle is arranged between the dehydration mechanism and the drying mechanism, one end of the oblique baffle is located below the mud outlet, and the other end extends into the inlet of the drying mechanism. By setting the dewatering mechanism, the equipment minimizes the water content of the sludge and improves the drying efficiency.

Description

Sludge drying treatment equipment

technical field

The utility model relates to sludge treatment technology, in particular to a sludge drying treatment equipment.

Background technique

At present, my country's industrialization process is fast, the pace of rural urbanization is accelerating, the urban population growth rate is fast, and the production of various pollutants such as sewage is increasing, and the various types of garbage, sludge, sewage, etc. to be treated are also increasing. If it is not treated in time, it will cause pollution to the environment and greatly affect people's lives. There are also various types of sludge drying devices on the market, but most of them are directly dried under the condition of large water content, which requires a lot of money. Larger energy can be used to dry the sludge, the drying efficiency is low, and energy is wasted.

Utility model content

The main purpose of the utility model is to provide a sludge drying treatment equipment to solve the problem of low drying efficiency caused by direct drying without sufficient dehydration in the prior art.

The technical solution to the problem is achieved as follows:

A sludge drying treatment equipment includes a dewatering mechanism, a water collecting tank and a drying mechanism, and the dewatering mechanism includes a dewatering outer cylinder, a rotating shaft, a spiral blade, a baffle, an annular moving piece and an elastic member, wherein the peripheral surface of the dewatering outer cylinder is A plurality of water filtering holes are evenly distributed, one end of the dewatering outer cylinder is closed, and the peripheral surface of this end is provided with a feeding port, the other end of the dewatering outer cylinder is open, and the opening is a mud outlet. In the outer cylinder, a spiral blade is spirally arranged on the peripheral surface of the rotating shaft. One end of the rotating shaft close to the feeding port is driven by a motor, and the other end is provided with a baffle. A ring-shaped moving piece is slidably sleeved on the inner side, and an elastic piece is arranged between the ring-shaped moving piece and the blocking piece; the water collecting tank is arranged below the dewatering outer cylinder, and the side wall of the water collecting tank is provided with a water outlet; the drying mechanism, along its length An inlet and an outlet are respectively provided in the directions, and an oblique baffle is arranged between the dehydration mechanism and the drying mechanism. One end of the oblique baffle is located below the mud outlet, and the other end extends into the inlet of the drying mechanism.

Among them, the pitch of the helical blade gradually decreases along the direction from the feeding port to the mud outlet.

Among them, the diameter of the water filter hole gradually decreases along the direction from the feeding port to the mud outlet.

Among them, the drainage hole is tapered, and its diameter gradually increases from the inside to the outside.

Among them, the dewatering outer cylinder is conical, and its diameter gradually decreases along the direction from the feeding port to the mud outlet, and correspondingly, the diameter of the spiral blade gradually decreases along the direction from the feeding port to the mud outlet.

Among them, the drying mechanism includes a thermal insulation shell, the top of which is provided with an exhaust port, and the two ends along its length direction are respectively provided with an inlet and an outlet; one end of the belt conveying mechanism is located at the entrance and the other end is located at the exit. One end of the belt conveyor is located above the other end of the belt conveying mechanism, a plurality of first heating rods are arranged between the upper and lower belts, and a plurality of second heating rods are arranged above the upper belt.

Among them, there is also a toothed roller above the upper belt. The peripheral surface of the toothed roller is provided with a plurality of teeth for moving the mud. The toothed roller and the second heating rod are arranged staggered in the horizontal direction.

Wherein, the shape of the teeth is arc, and the inner arc surface of the arc faces the rotation direction of the roller.

Among them, the bottom of the water collecting tank is a funnel-shaped structure.

The beneficial effects of the present utility model are:

By setting the dewatering mechanism, the water content of the sludge is minimized, the drying efficiency is improved, and the energy is saved;

Through the change of the pitch and diameter of the spiral blade, the change of the diameter and shape of the water filter hole, and the change of the shape of the dewatering barrel, the extrusion force is gradually increased, thereby improving the extrusion efficiency.

Description of drawings

The present utility model will be described in further detail below with reference to the accompanying drawings and specific embodiments.

Figure 1: a schematic diagram of the overall structure of the first embodiment;

Fig. 2: another structural schematic diagram of the teeth in the first embodiment;

Figure 3: schematic diagram of the distribution form of the drainage holes in Example 1 (the diameter gradually becomes smaller along the direction from the feeding port to the mud outlet);

Fig. 4: schematic diagram of the dehydration mechanism in the second embodiment (the dehydration outer cylinder is conical and the drainage hole is conical);

Fig. 5: Schematic diagram of cylindrical water filter hole in Example 2 (enlarged view at B in Fig. 1 );

Figure 6: schematic diagram of the conical water filter hole in the second embodiment (enlarged view at C in Figure 3);

Description of reference numerals

1 Dehydration mechanism

11 Dehydration outer cylinder

111 water filter hole

112 Feeding port

113 Mud outlet

12 reels

13 Spiral blades

14 Baffles

15 Ring moving plate

16 Elastic

17 Motor

2 Sump

21 Drain

3 Drying mechanism

30 Insulation shell

31 entrance

32 exit

33 Belt conveyor mechanism

331 Upper belt

332 Lower belt

34 First heating rod

35 Second heating rod

36 gear roller

361 Tooth

37 Exhaust port

4 Oblique baffles

A Rotation direction.

Detailed ways

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. In the following description, many specific details are set forth in order to fully understand the present utility model, but the present utility model can also be implemented in other ways different from those described herein, and those skilled in the art can do so without departing from the connotation of the present utility model. Therefore, the present invention is not limited by the specific embodiments disclosed below.

As shown in FIG. 1 , Embodiment 1 of the present invention: a sludge drying treatment equipment, including a dewatering mechanism 1 , a water collecting tank 2 and a drying mechanism 3 . The dehydration mechanism 1 includes a dehydration outer cylinder 11, a rotating shaft 12, a spiral blade 13, a baffle 14, an annular moving piece 15 and an elastic member 16, wherein a plurality of water filtering holes 111 are evenly distributed on the peripheral surface of the dehydration outer cylinder 11, and the dehydration outer cylinder One end of 11 is closed, and the peripheral surface of this end is provided with a feeding port 112, the other end of the dewatering outer cylinder 11 is open, and the opening is a mud outlet 113. A spiral blade 13 is spirally arranged on the peripheral surface of 12 , one end of the rotating shaft 12 close to the feeding port 112 is driven by the motor 17 , and the other end is provided with a baffle 14 , and there is a space between the baffle 14 and one end of the dewatering outer cylinder 11 . , an annular moving piece 15 is slidably sleeved within the interval, and an elastic member 16 is arranged between the annular moving piece 15 and the blocking piece 14 . The water collecting tank 2 is arranged below the dewatering outer cylinder 11 , and a drain port 21 is provided on the side wall of the water collecting tank 2 . The drying mechanism 3 is respectively provided with an inlet 31 and an outlet 32 along its length direction, an inclined baffle 4 is arranged between the dehydration mechanism 1 and the drying mechanism 3, one end of the inclined baffle 4 is located below the mud outlet 113, and the other end extends into the drying mechanism 3 Entrance 31.

Before use, flocculate the sludge first. You can add a flocculant or use electrolysis to make the sludge flocculate to achieve the effect of preliminary cement separation. When using, pump the sludge in this state into the feeding port 112 to make The sludge enters the inside of the dewatering outer cylinder 11. Under the drive of the motor 18, the rotating shaft 12 drives the spiral blade 13 to rotate, and the sludge in the dewatering outer cylinder 11 is pushed toward the mud outlet 113 through the spiral blade 13. The water is continuously squeezed out from the water filter hole 111, and finally the sludge with a small water content falls from the mud outlet 113 to the inclined baffle 4, and slides into the inlet 31 of the drying mechanism 3 from the inclined baffle 4 for heating and drying. , in order to achieve the effect of sludge drying. Among them, when the mud is not discharged, one end face of the annular moving piece 15 is attached to the one end face of the adjacent dewatering outer cylinder 11. When the sludge is pushed to the mud outlet 113 and needs to be discharged, the annular moving piece 15 An outward thrust, the thrust causes the annular movable 15 to displace in the direction of the blocking piece 14, and the elastic member 16 is compressed at this time. Under the action of the restoring force, the annular moving plate 15 is displaced in the direction of the mud outlet 113, that is, the annular moving plate 15 adjusts its position in the horizontal direction from left to right according to the size of the mud discharge, so as to ensure the smooth progress of the mud discharge. Wherein, in this embodiment, the above-mentioned elastic member 16 can be selected as a spring. In addition, the bottom of the water collecting tank 2 can be set as a funnel-shaped structure, because a small amount of flocculent sludge with smaller particles may be entrained in the water discharged from the water filter hole 111, and the bottom of the funnel-shaped water collecting tank 111 has the effect of secondary sedimentation. When the sediment reaches a certain amount, it can be discharged by means of a centrifugal pump or the like, and the clean water without sediment located in the upper layer of the water collecting tank 111 reaches a certain amount and is discharged from the water outlet 21 .

Since the water in the sludge is continuously squeezed out and flows into the water collecting tank 2, the side of the mud outlet 113 of the dewatering outer cylinder 11 is bound to need a larger extrusion force to fully squeeze out the remaining water, so the screw blades 13 can The specific setting is as follows: the pitch of the helical blade 13 gradually decreases along the direction from the feeding port 112 to the mud outlet 113, as shown in FIG. 1, so that the extrusion force of the water in the sludge can be gradually increased to improve the extrusion efficiency. .

Wherein, as shown in FIG. 1 , the drying mechanism 3 can be any mechanism capable of drying sludge in the prior art, and the specific structure can be the following:

The drying mechanism 3 includes a thermal insulation casing 30 , a belt conveying mechanism 33 , a first heating rod 34 and a second heating rod 35 . The top of the thermal insulation shell 30 is provided with an exhaust port 37, and two ends along the length direction thereof are provided with an inlet 31 and an outlet 32 respectively. One end of the belt conveying mechanism 33 is located at the entrance 31, the other end is located at the exit 32, one end of the oblique baffle 4 is located above the other end of the belt conveying mechanism, and a plurality of first heating rods are arranged between the upper and lower belts 331, 332 34. A plurality of second heating rods 35 are arranged above the upper belt 331 to generate heat to heat and dry the sludge containing a small amount of moisture on the belt conveying mechanism 33 .

After the sludge slides in from the inclined baffle 4 and during the drying process, it may dry and form into a block. Direct drying is not conducive to the volatilization of its internal moisture. It is necessary to evacuate the blocky sludge during drying to improve drying. The drying efficiency can be set as follows: the upper belt 331 is also provided with a toothed roller 36, and the peripheral surface of the toothed roller 36 is provided with a plurality of teeth 361 for moving the mud, and the toothed roller 36 is connected to the The second heating rods 35 are arranged staggered in the horizontal direction, and the sludge is kept evacuated continuously under the constant shifting of the shifting teeth 361, which can speed up the drying process, as shown in FIG. 1 .

In addition, as shown in FIG. 2 , the shape of the above-mentioned shifting teeth 361 can be arc-shaped, and the inner arc surface of the arc is facing the rotation direction A of the shifting gear roller. The arc-shaped shifting teeth 361 can not only shift the sludge, but also The sludge is raised to a certain extent, which further strengthens the effect of sludge evacuation, thus further accelerating the drying process.

In this embodiment, in order to further increase the extrusion force of the water in the sludge and improve the extrusion efficiency, the diameter of the drainage hole 111 (in this case, the cylindrical hole) is changed. Specifically, the diameter of the drainage hole 111 is along the The direction from the feeding port 112 to the mud outlet 113 gradually becomes smaller, as shown in Figure 3

Example 2: The difference between Example 1 and Example 2 is that the structures of the drainage holes and the dewatering outer cylinder are different. In order to further increase the extrusion force of the water in the sludge and improve the extrusion efficiency, the drainage holes are also changed. The shape of 111, the conventional structure is a cylindrical hole (in the first embodiment, it is a cylindrical hole), as shown in FIG. , its diameter gradually increases from the inside to the outside, so the structure can make it easier for the water to squeeze out.

In addition, in order to increase the extrusion force of the water in the sludge and improve the extrusion efficiency, the shape of the dewatering outer cylinder 11 can also be changed, as shown in FIG. The direction from the port 112 to the mud outlet 113 gradually becomes smaller, and accordingly, the diameter of the spiral blade 13 inside thereof gradually becomes smaller along the direction from the feeding port 112 to the mud outlet 113 .

The above descriptions are only preferred embodiments of the present invention, and obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Claims (9)

1. a sludge drying treatment equipment, is characterized in that, comprises dewatering mechanism, sump and drying mechanism, The dehydration mechanism includes a dehydration outer cylinder, a rotating shaft, a spiral blade, a baffle, an annular moving piece and an elastic member, wherein a plurality of water filtering holes are evenly distributed on the peripheral surface of the dehydration outer cylinder, one end of the dehydration outer cylinder is closed, and the peripheral surface of the end is closed. There is a feeding port on the surface, the other end of the dewatering outer cylinder is open, and the opening is a mud outlet. One end of the feeding port is driven by a motor, and the other end is provided with a blocking piece. There is a gap between the blocking piece and one end of the dewatering outer cylinder. A ring-shaped moving piece is slidably sleeved in the gap, and the annular moving piece and the blocking piece are arranged between them. elastic parts; The water collecting tank is arranged below the dehydration outer cylinder, and the side wall of the water collecting tank is provided with a drainage outlet; The drying mechanism is provided with an inlet and an outlet along its length, and an inclined baffle is arranged between the dewatering mechanism and the drying mechanism. 2 . The sludge drying treatment equipment according to claim 1 , wherein the pitch of the helical blades gradually decreases along the direction from the feeding port to the mud outlet. 3 . 3 . The sludge drying treatment equipment according to claim 1 , wherein the diameter of the water filter hole gradually decreases along the direction from the feeding port to the mud outlet. 4 . 4 . The sludge drying treatment equipment according to claim 1 , wherein the water filtering hole is conical, and its diameter gradually increases from the inside to the outside. 5 . 5 . The sludge drying treatment equipment according to claim 1 , wherein the dewatering outer cylinder is conical, and its diameter gradually becomes smaller along the direction from the feeding port to the mud outlet, and accordingly the diameter of the helical blade is along the feeding direction. 6 . The direction from the mouth to the mud outlet gradually becomes smaller. 6. The sludge drying treatment equipment according to claim 1, wherein the drying mechanism comprises: The thermal insulation shell is provided with an exhaust port at the top, and an inlet and an outlet are respectively provided at both ends along its length direction; One end of the belt conveying mechanism is located at the entrance, the other end is located at the exit, one end of the inclined baffle is located above the other end of the belt conveying mechanism, a plurality of first heating rods are arranged between the upper and lower belts, and a plurality of first heating rods are arranged above the upper belt. There are multiple second heating rods. 7 . The sludge drying treatment equipment according to claim 6 , wherein a toothed roller is further provided above the upper belt, and the peripheral surface of the toothed roller is provided with a plurality of dials for moving the sludge. 8 . The teeth, the toothed roller and the second heating rod are staggered in the horizontal direction. 8 . The sludge drying treatment equipment according to claim 7 , wherein the shape of the teeth is arc, and the inner arc surface of the arc faces the rotation direction of the teeth roller. 9 . 9 . The sludge drying treatment equipment according to claim 1 , wherein the bottom of the water collecting tank is a funnel-shaped structure. 10 .

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