CN202379861U

CN202379861U - Sludge drier

Info

Publication number: CN202379861U
Application number: CN2011205506666U
Authority: CN
Inventors: 张新华; 张若煜
Original assignee: University of Shaoxing
Current assignee: University of Shaoxing
Priority date: 2011-12-26
Filing date: 2011-12-26
Publication date: 2012-08-15
Anticipated expiration: 2021-12-26

Abstract

The utility model discloses a sludge drier, which comprises a body with a feed inlet and a discharge outlet. Hollow shafts are mounted in the body. Wedged hollow blades are arranged on each hollow shaft. A rotary connector with a steam inlet and a condensate outlet is connected to one end of each hollow shaft. A gas inlet pipe is arranged on each hollow blade. A water outlet pipe is arranged between each hollow blade and the corresponding hollow shaft. Steam inlet pipes connected to the corresponding steam inlet are arranged in each hollow shaft. The gas inlet pipe disposed on each hollow blade is hermetically connected with the corresponding steam inlet pipe. The sludge drier is based on existing equipment, steam is still fed in from the rotary connector, the steam inlet pipes are disposed in the body, the gas inlet pipes on the hollow blades are in hermetical butt joint with the steam inlet pipes, and accordingly delivery of steam into each hollow blade is guaranteed, and condensate generated in heat exchange flows into the hollow shafts from the water outlet pipes and flows out through the condensate outlets. The sludge drier has the advantages that heat transferring efficiency is improved greatly in steam-water separation by the sludge drier, and the treatment process of steam condensate is simplified.

Description

A kind of sludge drier

Technical field

The utility model relates to the drying sludge field, especially a kind of sludge drier.

Background technology

Along with Chinese society economy and development of city, the generation of municipal effluent constantly increases.In recent years, country all actively supported on policy and financial resources, had built large quantities of municipal sewage plants, and to keep water surrounding, the anti-pollution of harnessing the river promotes the Sustainable development of national economy and ecotope, and the municipal effluent problem progressively is eased.Yet city sewage and sludge is handled and to be still a global technical barrier, mishandlingly will cause serious secondary pollution, and the innocuity treatment problem of mud is increasingly serious.

At present, the method that sewage work adopts usually is a sludge dewatering outward transport landfill disposal, and such processing mode not only pollutes but also take a large amount of soils to environment.Simultaneously, contain elements such as a large amount of organic substances such as nitrogen, phosphorus, potassium in the mud,, can improve the recycle of organic substance if can also be used as agrochemical through effective processing.How the mud of these complicated compositions being done harmless treatment, is to solve China's industrialization development and improve the ecological environment unavoidable important topic.

Dense arrangement wedge type hollow paddle on the tubular shaft of existing sludge drier, with steam as thermal barrier.Steam is sent into by swivel joint, directly through vapor pressure (0.3-0.4MPa) steam is sent into each blade, when beginning to design; In order to increase the heat exchange area of blade, the quantity of lengthening stir shaft length and blade, but in actual the use owing to shaft length is long; It is little that waste heat steams pressure; Steam can't be passed to the bottom and each blade of axle, thereby causes heat exchanger effectiveness low, and drying effect is poor; And the water of condensation that after heat exchange, generates, with steam at same housing, produce certain pressure difference, cause steam to be passed to more and do not have among the blade, thereby greatly reduce thermal conversion efficiency, increased steam consumption.

Summary of the invention

The utility model in use exists the interior waste heat steaming of tubular shaft pressure little for solving prior art, and steam can't be passed to the bottom and each blade of axle, thereby causes heat exchanger effectiveness low; Drying effect is poor, and the water of condensation that after heat exchange, generates, with steam at same housing; Produce certain pressure difference, cause steam to be passed to more and do not have among the blade, thereby greatly reduce thermal conversion efficiency; Increased the problem of steam consumption, a kind of sludge drier that reduces steam consumption is provided.

The technical scheme that the utility model solves existing issue is: a kind of sludge drier; Comprise the body that has opening for feed, discharge port, tubular shaft is installed in the body, be arranged with the wedge shape hollow blade on the tubular shaft; Described tubular shaft axle head is connected with the swivel joint of carrying vapour import and condensation-water drain; Described hollow blade is provided with inlet pipe, is provided with rising pipe between hollow blade and the tubular shaft, as the improvement of the utility model; Be provided with the steam inlet duct that connects steam inlet in the described tubular shaft, inlet pipe and steam inlet duct set on the described hollow blade are tightly connected.

As the further improvement of the utility model, be provided with the U trap that connects condensation-water drain in the described tubular shaft.

The utility model compared with prior art; Based on existing installation, steam is still sent into by swivel joint, and steam inlet duct is set in the body; Inlet pipe and steam inlet pipe on the hollow blade are used sealed butt joint; Thereby guarantee that each hollow blade all delivers to steam, the water of condensation that produces after the heat exchange flows into open tube through rising pipe, derives through condensation-water drain again.Its beneficial effect is that this structure is separated carbonated drink, and that has improved heat greatly leads transfer efficiency and the treating processes of having simplified steam condensate.The vapor volume of dry one ton of mud reduces to below 0.85 ton by original 1.2 tons; The length of axle and the quantity of blade also can be done corresponding minimizing, and this is simple in structure, reliable, has both reached energy-conservation purpose, can reduce equipment cost again.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is the amplification profile synoptic diagram of the utility model tubular shaft.

Fig. 3 is the cross sectional representation of the tubular shaft of Fig. 2.

Embodiment

Referring to Fig. 1-3; This case study on implementation comprises and has opening for feed 11, discharge port 12 bodies 1, and four tubular shafts 2 are installed in the body 1, and wherein two is one group; Dense arrangement has wedge shape hollow blade 21 on the tubular shaft 2; Tubular shaft 2 axle heads are connected with the swivel joint 3 of carrying vapour import 22 and condensation-water drain 23, and hollow blade 21 is provided with

inlet pipe

13, and 23 of hollow blade 21 and tubular shaft 2 are provided with rising pipe 3; Be provided with the steam inlet duct 4 of a connection steam inlet 22 in the tubular shaft 2, inlet pipe 13 set on the hollow blade 21 is tightly connected with steam inlet duct 4.

Mud gets off from a last operation and carries out drying from opening for feed 11 interior entering in the body 1, under the promotion of hollow blade 21, discharges from discharge port 12, gets into subsequent processing.Steam enters into steam inlet duct 4 through the steam inlet 22 of swivel joint 3, and then in vapour pipe 4, gets into corresponding hollow blade 21 through corresponding inlet pipe 13, carries out heat exchange through hollow blade 21, gets into the mud in the body 1 with heat drying.Water of condensation after the heat exchange flows in the tubular shaft 2 through rising pipe 14, makes carbonated drink separation, does not influence vapor temperature and pressure in the hollow blade 21, practices thrift steam.

Be provided with the U trap 5 that connects condensation-water drain 21 in the optimization tubular shaft 2 as the utility model, the water of condensation in the tubular shaft 2 can be derived from condensation-water drain 21 through U trap 5.

Claims

1. sludge drier; Comprise the body that has opening for feed, discharge port; Tubular shaft is installed in the body, is arranged with the wedge shape hollow blade on the tubular shaft, described tubular shaft axle head is connected with the swivel joint of carrying vapour import and condensation-water drain; Described hollow blade is provided with inlet pipe; Be provided with rising pipe between hollow blade and the tubular shaft, it is characterized in that: be provided with the steam inlet duct that connects steam inlet in the described tubular shaft, inlet pipe and steam inlet duct set on the described hollow blade are tightly connected.

2. sludge drier as claimed in claim 1 is characterized in that: be provided with the U trap that connects condensation-water drain in the described tubular shaft.