CN217979695U

CN217979695U - Sludge dryer

Info

Publication number: CN217979695U
Application number: CN202221890355.9U
Authority: CN
Inventors: 王义磊; 李婉玲; 曹官伟
Original assignee: Weifang Xinyi Environmental Protection Co ltd
Current assignee: Weifang Xinyi Environmental Protection Co ltd
Priority date: 2022-07-22
Filing date: 2022-07-22
Publication date: 2022-12-06
Anticipated expiration: 2032-07-22

Abstract

The utility model discloses a sludge dryer, which belongs to the technical field of sludge dewatering and comprises a box body, wherein a chain plate conveyor is arranged in the box body, the chain plate conveyor is arranged up and down, an air injection device is arranged in the chain plate conveyor, the air injection device is provided with a plurality of spray pipes, nozzles are uniformly distributed and fixed on the spray pipes, one ends of the spray pipes are rotatably connected with an air bag, a fixed rod is fixed at the other end of each spray pipe, and one end of each fixed rod, which is far away from the corresponding spray pipe, is hinged on a second connecting rod; a rotating wheel is fixed on a chain wheel shaft at one end of the chain plate conveyor, the second connecting rod is hinged with the first connecting rod, and the first connecting rod is eccentrically hinged on the rotating wheel. The utility model provides a pair of sludge drying machine can make under the prerequisite that does not improve the flue gas temperature of stoving mud cake, and through increasing the velocity of flow of the flue gas of flowing through the mud cake and improving flue gas spun homogeneity for the evaporation of moisture in the mud cake improves sludge drying machine's dehydration rate.

Description

Sludge dryer

Technical Field

The utility model relates to a sludge drying machine belongs to sludge dewatering technical field.

Background

The sludge drying treatment equipment in China is rapidly advanced, the whole development is in a rapid growth period, and the sludge drying treatment equipment mainly shows that the sludge drying treatment capacity is rapidly expanded, the sludge drying treatment rate is stably improved, the sludge drying treatment capacity is rapidly increased and the like. The sludge drying treatment business in China has wide market space. The state encourages the policy of utilizing the reclaimed water and also provides wide market space for the sludge advanced treatment service. The severe situation of sludge drying treatment construction in China and the current situation of low sludge drying treatment rate in county cities and towns bring huge investment space for construction and operation investment of sludge drying treatment markets.

Sludge is dewatered by a sludge dewatering filter press to form a sludge cake with the water content of 70-75%, then the sludge cake is sent to a sludge dryer to be dried to obtain the sludge cake with the water content of 10-30%, and the dried sludge cake can be transported to be used as fertilizer, incineration power generation, building materials and the like.

Traditional sludge drying-machine is generally to sending into high temperature flue gas to drying-machine bottom of the case portion, is provided with multilayer drag chain conveyer in the box, and the drag chain is carried and is provided with the link joint of mesh form on, and the mud cake is carried on the link joint, and the mud cake heating on the link joint is carried to high temperature flue gas, makes mud volatilize.

The belt type sludge dewatering filter press in the prior art generally has the following technical problems that high-temperature flue gas fed into the bottom of a box body is limited, even the flow of the flue gas is large, when the speed of the flue gas flowing through a mud cake on a chain plate is generally less than 1m/s, the volatilization speed of water in sludge is slow. If the temperature of the flue gas is increased, the energy consumption is increased.

In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to in the background art, provide a sludge drying machine, can make under the prerequisite that does not improve the flue gas temperature of stoving mud cake, and through increasing the velocity of flow of the flue gas of mud cake of flowing through and improving flue gas spun homogeneity for the evaporation of moisture in the mud cake improves sludge drying machine's dehydration rate.

For solving the technical problem, the utility model discloses a following technical scheme:

the utility model provides a sludge drying machine, includes the box, has the drag chain conveyer in the box inside, and the drag chain conveyer is the setting of arranging from top to bottom, the both ends of two sprocket shafts of drag chain conveyer all are provided with the sprocket, and the sprocket passes through the chain meshing to be connected, and a plurality of link joint of having arranged between the chain are equipped with a plurality of air vents on this link joint.

And an air injection device is arranged in the chain plate conveyor and comprises a spray pipe, an air bag, a nozzle and a second connecting rod.

The spray pipe is characterized in that nozzles are uniformly distributed and fixed in the axis direction of the spray pipe, one end of the spray pipe is rotatably connected with the pipe wall of the air bag, and the axis of the spray pipe is perpendicular to the axis of the air bag.

And a fixed rod is fixed at the other end of the spray pipe, and one end of the fixed rod, which is far away from the spray pipe, is hinged on the second connecting rod.

A rotating wheel is fixed on a chain wheel shaft at one end of the chain plate conveyor, the second connecting rod is hinged with the first connecting rod through a through hole at one end, and the first connecting rod is eccentrically hinged on the rotating wheel.

The spray pipes are arranged at equal intervals between the chain wheels at the two ends and the axes of the spray pipes are parallel to the chain wheel shafts.

The air bag is fixed on the inner side wall of the box body and is positioned on one side of the chain plate conveyor.

And a bearing seat is fixed on the inner wall of the box body, and the other end of the spray pipe is rotationally connected with the bearing seat.

The fixed rod and the nozzle are arranged on the spray pipe in the same direction, and the axes of the fixed rod and the nozzle are parallel.

The rotating wheel is positioned at the other side of the chain plate conveyor.

One end of the spray pipe is rotationally connected with the pipe wall of the air bag through a bearing, and a sealing ring is arranged on one side of the bearing.

The utility model adopts the above technical scheme after, compare with prior art, have following advantage:

1. the utility model has the advantages that the hot flue gas heated and pressurized is stored in the air bag, the flue gas is sprayed out from the nozzle at high speed through the spray pipe, the airflow sprayed out from the nozzle can reach more than 10m/s on the premise of providing enough gas storage capacity for the air bag, the wind speed of the airflow flowing through mud cakes is improved, and the dehydration speed of the mud cakes is greatly improved;

2. spray tube one end is connected with the gas bag rotation, and the epaxial runner of sprocket drives first connecting rod, and first connecting rod pulling second connecting rod is reciprocating motion, and the second connecting rod drives the spray tube at certain angle swing back and forth, realizes the even jetting and heating of the wider scope of mud cake on the chain board, and the flue gas distribution in the box is also more even, improves the mummification speed of mud cake.

The present invention will be described in detail with reference to the accompanying drawings and examples.

Drawings

Fig. 1 is a front sectional view of the present invention;

FIG. 2 isbase:Sub>A cross-sectional view taken along A-A of FIG. 1;

FIG. 3 is a schematic structural view of the air injection device of the present invention;

fig. 4 is an enlarged view at H in fig. 1.

In the figure, 1-box, 2-chain plate conveyor, 201-chain wheel, 202-chain, 203-chain wheel shaft, 204-chain plate, 3-air outlet, 4-feed inlet, 5-discharge outlet, 6-air injection device, 601-air bag, 602-spray pipe, 603-fixed rod, 604-second connecting rod, 605-spray nozzle, 606-through hole, 607-bearing, 608-sealing ring, 7-bearing seat, 8-first connecting rod and 9-rotating wheel.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in fig. 1-4 jointly, the utility model provides a sludge drying machine, including box 1, there are two drag chain conveyors 2 in box 1 inside, drag chain conveyor 2 arranges the setting from top to bottom, the both ends of two sprocket shafts 203 of drag chain conveyor 2 all are provided with sprocket 201, and sprocket 201 passes through chain 202 meshing connection, a plurality of link joint 204 of having arranged between the chain 202, is equipped with a plurality of air vents on this link joint 204, and the steam of link joint 204 bottom can pass the sludge heating on the little aperture pair link joint 204.

An air injection device 6 is arranged inside the chain scraper conveyor 2 and comprises an injection pipe 602, an air bag 601, a nozzle 605 and a second connecting rod 604.

The spray pipes 602 are arranged between the chain wheels 201, the axis of the spray pipes 602 is parallel to the axis of the chain wheels 201, the spray nozzles 605 are fixed at equal intervals in the axial direction of the spray pipes 602, one end of each spray pipe 602 is rotatably connected with the pipe wall of the air bag 601 through a bearing 607, and a sealing ring 608 is arranged on one side of each bearing 607.

The air bag 601 is fixed on the inner side wall of the box body 1 and located on one side of the chain scraper conveyor 2, and the axis of the spray pipe 602 is perpendicular to the axis of the air bag 601.

The other end of the spray pipe 602 is rotatably connected with a bearing seat 7, and the bearing seat 7 is fixed on the inner wall of the box body 1.

A fixed rod 603 is fixed to the nozzle 602 at a position close to the bearing seat 7, and the fixed rod 603 and the nozzle 605 are arranged on the nozzle 602 in the same direction.

The end of the fixed lever 603 remote from the nozzle 602 is hinged to a second link 604.

A rotating wheel 9 is fixed on the sprocket shaft 203 at one end of the chain conveyor 2, the rotating wheel 9 is positioned at the other side of the chain conveyor 2, the second connecting rod 604 is hinged with the first connecting rod 8 through a through hole 606 at one end, and the first connecting rod 8 is eccentrically hinged on the rotating wheel 9.

The utility model discloses a concrete theory of operation:

mud cakes dewatered by the sludge filter press fall onto a chain plate 204 of an upper-layer chain plate conveyor 2 from a feed inlet 4 at the upper end of a dryer box body 1 and are conveyed forwards under the driving of a chain wheel 201, hot flue gas for heating and pressurizing is stored in an air bag 601, the flue gas is sprayed out from a nozzle 605 at a high speed through a spray pipe 602, and on the premise of providing enough gas storage capacity for the air bag 601, the air flow sprayed out from the nozzle 605 can reach more than 10m/s, so that the air speed of the air flow flowing through the mud cakes is improved, and the dewatering speed of the mud cakes is greatly improved. Meanwhile, one end of the spray pipe 602 is rotatably connected with the air bag 601, the other end of the spray pipe is rotatably connected with the bearing seat 7, the rotating wheel 9 fixed on the chain wheel shaft 203 drives the first connecting rod 8, the first connecting rod 8 pulls the second connecting rod 604 to do reciprocating motion, the second connecting rod 604 drives the spray pipe 602 to swing back and forth at a certain angle, the mud cake on the chain plate 204 is uniformly sprayed and heated in a larger range, the smoke in the box body 1 is distributed more uniformly, the drying speed of the mud cake is improved, and moisture-containing hot air is discharged from the air outlet 3.

When the mud cake on the chain conveyor 2 on the upper layer is conveyed to the end part, the mud cake falls to the chain conveyor 2 on the lower layer, and finally the mud cake on the chain conveyor 2 on the lower layer is conveyed to the outlet 5.

The above description is illustrative of the best mode contemplated for carrying out the present invention and the details not specifically mentioned are within the common general knowledge of those skilled in the art. The protection scope of the present invention is subject to the content of the claims, and any equivalent transformation based on the technical teaching of the present invention is also within the protection scope of the present invention.

Claims

1. The utility model provides a sludge drying machine, includes box (1), has drag chain conveyor (2) in box (1) inside, and drag chain conveyor (2) are the setting of arranging from top to bottom, the both ends of two sprocket shafts (203) of drag chain conveyor (2) all are provided with sprocket (201), and sprocket (201) are connected through chain (202) meshing, and a plurality of link joint (204) of having arranged between chain (202) are equipped with a plurality of air vents on this link joint (204), its characterized in that:

an air injection device (6) is arranged inside the chain plate conveyor (2), and comprises an injection pipe (602), an air bag (601), a nozzle (605) and a second connecting rod (604);

nozzles (605) are uniformly distributed and fixed in the axial direction of the spray pipe (602), one end of the spray pipe (602) is rotatably connected with the pipe wall of the air bag (601), and the axial line of the spray pipe (602) is vertical to the axial line of the air bag (601);

a fixed rod (603) is fixed at the other end of the spray pipe (602), and one end, far away from the spray pipe (602), of the fixed rod (603) is hinged to a second connecting rod (604);

a rotating wheel (9) is fixed on a chain wheel shaft (203) at one end of the chain plate conveyor (2), the second connecting rod (604) is hinged with the first connecting rod (8) through a through hole (606) at one end, and the first connecting rod (8) is eccentrically hinged on the rotating wheel (9).

2. The sludge dryer as claimed in claim 1, wherein: the spray pipe (602) is provided with a plurality of spray pipes (602) which are arranged at equal intervals between the chain wheels (201) at the two ends and the axes of the spray pipes are parallel to the chain wheel shaft (203).

3. The sludge dryer according to claim 1, wherein: the air bag (601) is fixed on the inner side wall of the box body (1) and is positioned on one side of the chain plate conveyor (2).

4. The sludge dryer according to claim 1, wherein: the other end of the spray pipe (602) is rotatably connected with a bearing seat (7), and the bearing seat (7) is fixed on the inner wall of the box body (1).

5. The sludge dryer according to claim 1, wherein: the fixing rod (603) and the nozzle (605) are arranged on the spray pipe (602) in the same direction.

6. The sludge dryer according to claim 1, wherein: the rotating wheel (9) is positioned at the other side of the chain plate conveyor (2).

7. The sludge dryer according to claim 1, wherein: one end of the spray pipe (602) is rotatably connected with the pipe wall of the air bag (601) through a bearing (607), and a sealing ring (608) is arranged on one side of the bearing (607).