CN205024075U - Calcium carbonate chemical sludge discharge apparatus that dewaters - Google Patents
Calcium carbonate chemical sludge discharge apparatus that dewaters Download PDFInfo
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- CN205024075U CN205024075U CN201520768412.XU CN201520768412U CN205024075U CN 205024075 U CN205024075 U CN 205024075U CN 201520768412 U CN201520768412 U CN 201520768412U CN 205024075 U CN205024075 U CN 205024075U
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Abstract
The utility model provides a calcium carbonate chemical sludge discharge apparatus that dewaters mainly comprises following part: 1 - sludge tihckener, 2 - thickened sludge delivery pump, 3 - thickened sludge pipeline, 4 - line mixer, three slot type PAM preparation facilitiess of 5 -, 6 - add medicine screw pump, the horizontal spiral of 7 - unload sedimentation centrifuge, the smooth feed cylinder of 8 -. 9 - mud feed bin includes the 10 - storehouse body, 11 - discharging valve, 12 - biax discharge auger, 13 - feed bin control system, the electronic knife gate of 14 -, the 15 - balladeur train of unloading. Adopt the utility model discloses the device carries out dehydration to calcium carbonate chemical sludge, and it is efficient to dewater, has saved dry mud and has carried to the power consumption cost and the transfer apparatus investment of feed bin in -process, and clean energy -conserving, operation environment is good, solved simultaneously that calcium carbonate chemical sludge bonds, hardens, arch camber bridging etc. Causes equipment to block up, and full flow automatic control has been realized, continuous operation to the smooth scheduling problem of unloading.
Description
Technical field
The utility model belongs to environment project, particularly a kind of calcium carbonate chemistry sludge dewatering dumping device.
Background technology
In Industrial processes, a lot of technique process all containing or use calcium carbonate in a large number; Therefore, calcium carbonate is extensively present in trade effluent, and this just causes producing a large amount of calcium carbonate chemistry mud in a lot of During Industrial Wastewater Treatment Process.Calcium carbonate chemistry sludge dewatering prior art mainly contains:
(1) conventional mechanical pressure dehydration technique: dewatering technology of mud is based on mechanical dehydration at present, comprises vacuum suction filter method, centrifuging and filter press technique.Main mechanical means has: drum type vacuum filter, filter press, belt type filter-pressing dehydration plant, screw press dehydration etc.What this type dewatering machine was sloughed is only free clearance water in mud, though through dehydration, sludge water content still has about 75% ~ 85%.
(2) Thermal dehydration technology: Thermal dehydration generally adopts steam, flue gas or other thermal source to dewater, and it is not the oven dry of general significance.Common equipment is paddle machine, sleeve machine or fluidized-bed etc., also has and improves thermo-efficiency with granulation or Sprayable.Heat or UTILIZATION OF VESIDUAL HEAT IN because Thermal dehydration must rely on thermal source, exist and use steam uneconomical, utilize boiler flue influential system to stablize, build independent thermal source cost greatly, utilize waste heat to change the problems such as original process facility.Moreover, want recycling after mummification, the former calorific value possessed of mud can not be destroyed because of dehydration.Therefore, say in a sense, heating power mummification is heat energy displacement, and " with hot heat exchange " there will be serious thermal equilibrium negative effect, consequently with put greatly little, lose more than gain.
(3) pressed powder modification+plate-and-frame filter press pressure filtering technique is added: add pressed powder and carry out sludge modification, make modified mud through plate-and-frame filter press press filtration by sludge dewatering to water ratio less than 60%, but the pressed powder amount of adding is larger, only increase solids content in mud, add ash content in mud, reduce organic content and calorific value etc. in mud.Its essence is and adopt a kind of " water adds face, and water is added in face " mode, do not reduce the moisture in mud.
(4) heating power and mechanical pressure Integral sludge dehydration technique: it adopts a kind of low-temperature heat source that mud is heated to 150 ~ 180 DEG C, then dewatered with screw press, as " FKC " machine that Japan releases.This equipment still needs dependence thermal source, and this special expeller complex structure, expensive, and the cost changing parts is very large; Meanwhile, its production efficiency is lower.Therefore, adopt in the industry few, be difficult to become a kind of type selecting " focus ".
(5) frame filter press filter-press dehydration technology: so-called " novel " plate-and-frame filter press at present, only add one deck diaphragm of rubber, only 0.6 ~ 0.8Mpa pressurized air or water may be passed into instantaneously in barrier film, mud is exerted pressure dehydration instantaneously, makes moisture percentage in sewage sludge likely be reduced to 70% ~ 75%.
Owing to easily boning between calcium carbonate chemistry mud granule, easily cause ditch to stay, block and harden, above processing mode is not all desirable processing mode, and in discharge process, there is mud bonding equally to harden the blockage problem caused, treating processes can not be carried out continuously.
Therefore, study a kind of low cost, workable, energy-conserving and environment-protective, the calcium carbonate sludge dewatering discharging integrated apparatus that can run continuously, to solve the problems produced in calcium carbonate sludge dehydration process, tool is of great significance.
Utility model content
The purpose of this utility model is to provide a kind of calcium carbonate chemistry sludge dewatering of integration three-dimensional dumping device, the impact on surrounding enviroment in traditional calcium carbonate chemistry sludge dehydration process can be overcome, save dewatered sludge and be delivered to electric cost in feed bin process and facility investment, the negative impact that overcome sludge blockage, harden etc. brings treating processes.
The technical solution of the utility model:
Calcium carbonate chemistry sludge dewatering dumping device, comprises sludge thickener, thickened sludge transferpump, thickened sludge transport pipe, line mixer, three slot type PAM preparation facilitiess, dosing spiral pump, horizontal spiral discharge sedimentation centrifuge, lubricating substance cylinder, sludge storage bin.Sludge storage bin comprises warehouse, discharge gate, twin shaft discharge auger, storage bin control system, electric knives gate valve, discharging balladeur train.
Sludge out pipe is connected to bottom the sludge thickener being positioned at sludge dewatering machine room north side, sludge out pipe end is connected to the sludge delivery pump ingress of sludge dewatering machine room one deck, the outlet of thickened sludge transferpump connects thickened sludge transport pipe, and thickened sludge transport pipe end is connected to the horizontal spiral discharge sedimentation centrifuge being positioned at three layers, sludge dewatering machine room.Thickened sludge transport pipe is equipped with line mixer in the horizontal segment of two layers.Three slot type PAM preparation facilitiess are arranged on sludge dewatering machine room one deck, its medicine outlet is connected to drug discharging tube, drug discharging tube end is connected to the entrance of dosing spiral pump, and the outlet of dosing spiral pump connects drug delivery pipe, and drug delivery pipe end is received and is positioned in the line mixer import of two layers.Immediately below the mud mouth of horizontal spiral discharge sedimentation centrifuge, floor has hole, and lubricating substance cylinder thus hole passes through.The upper end of lubricating substance cylinder is connected to the mud mouth of horizontal spiral discharge sedimentation centrifuge, and lower end is connected to the opening for feed of sludge storage bin.The warehouse of sludge storage bin is installed on two floor faces immediately below horizontal spiral discharge sedimentation centrifuge.
Warehouse inner bottom part has installed discharging balladeur train, and discharging balladeur train is wedge shape, and the to-and-fro movement on warehouse base plate plane of discharging balladeur train is hardened to prevent mud.Warehouse base plate below discharging balladeur train has two discharge ports, below discharge port, be provided with discharge gate, twin shaft discharge auger is housed immediately below discharge gate.By the rotation of discharge auger, the sludge crushing of bulk is become fritter, and along with the rotary transfer of spiral is to feed opening.Feed opening and double-shaft spiral unloading machine export joint and are provided with electric knives gate valve, and storage bin control system is arranged near sludge dewatering machine room two layers of warehouse.
The beneficial effect of utility model: dewatered sludge discharging adopts three-dimensional layout, and anti-compaction is adopted to sludge storage bin inside, anti-clogging plug designs, overcome produce in traditional calcium carbonate chemistry sludge dehydration process waste water, foul smell is on the impact of surrounding enviroment, save dewatered sludge and be delivered to electric cost in feed bin process and facility investment, the negative impact that overcome sludge blockage, harden etc. is brought treating processes compared with conventional processes.
Accompanying drawing explanation
Fig. 1 is the three-dimensional discharge process schema of calcium carbonate chemistry sludge dewatering.
Fig. 2 is calcium carbonate chemistry sludge dewatering dumping device two layer plane layout drawing.
Fig. 3 is device 1-1 sectional view in Fig. 2.
Fig. 4 is calcium carbonate chemistry sludge dewatering dumping device three layer plane layout drawing.
Fig. 5 is sludge storage bin vertical view.
Fig. 6 is the A-A sectional view of Fig. 5.
Fig. 7 is the vertical planning drawing of twin shaft discharge auger.
Fig. 8 is the overlooking surface figure of twin shaft discharge auger.
Fig. 9 is the vertical view of electric knives gate valve.
Figure 10 is the vertical planning drawing of electric knives gate valve.
In figure: 1-sludge thickener; 2-thickened sludge transferpump; 3-thickened sludge transport pipe; 4-line mixer; 5-tri-slot type PAM preparation facilities; 6-dosing spiral pump; 7-horizontal spiral discharge sedimentation centrifuge; 8-lubricating substance cylinder; 9-sludge storage bin; 10-warehouse; 11-discharge gate; 12-twin shaft discharge auger; 13-storage bin control system; 14-electric knives gate valve; 15-discharging balladeur train.
Embodiment
Below in conjunction with the embodiment of accompanying drawing, embodiment of the present utility model is further described.
As shown in drawings: sludge thickener (1) bottom being positioned at sludge dewatering machine room north side is connected to sludge out pipe, and sludge out pipe end is connected to sludge delivery pump (2) ingress of sludge dewatering machine room one deck.Thickened sludge transferpump (2) outlet connects thickened sludge transport pipe (3), and thickened sludge transport pipe (3) end is connected to the horizontal spiral discharge sedimentation centrifuge (7) being positioned at three layers, sludge dewatering machine room.Thickened sludge transport pipe (3) is equipped with line mixer (4) in the horizontal segment of two layers.Three slot type PAM preparation facilitiess (5) are arranged on sludge dewatering machine room one deck, and its medicine outlet is connected to drug discharging tube, and drug discharging tube end is connected to the entrance of dosing spiral pump (6).Dosing spiral pump (6) outlet connect drug delivery pipe, this pipe end receive be positioned at two layers line mixer (4) import on.Immediately below the mud mouth of horizontal spiral discharge sedimentation centrifuge (7), floor has the hole of 800mm × 500mm, lubricating substance cylinder (8) thus hole passes through, its upper end is connected to the mud mouth of horizontal spiral discharge sedimentation centrifuge (7), and lower end is connected to the opening for feed of sludge storage bin (9).The warehouse (10) of sludge storage bin (9) is installed on two floor faces immediately below horizontal spiral discharge sedimentation centrifuge (7).
Warehouse (10) inner bottom part has installed discharging balladeur train (15), in wedge shape, in warehouse (9) bottom to-and-fro movement, prevent mud from hardening, warehouse (9) base plate of discharging balladeur train (15) below has the discharge port that two are of a size of 600mm × 1000mm, below discharge port, is provided with discharge gate (11), twin shaft discharge auger (12) is housed immediately below discharge gate (11), by the rotation of discharge auger, the sludge crushing of bulk is become fritter, and along with the rotary transfer of spiral is to feed opening.Feed opening and twin shaft discharge auger (12) export joint and are provided with electric knives gate valve (14), and storage bin control system (13) is arranged near sludge dewatering machine room two layers of warehouse (10).
Sludge dewatering workflow is as follows:
Horizontal spiral discharge sedimentation centrifuge (7) is delivered to through concentrated mud by sludge delivery pump (2) in sludge thickener (1), and in pipeline, flocculation agent is added in the process of conveying, by line mixer (4), medicament is fully mixed with sludge liquid, after flocculating further in the duct with the mixed mud of medicament, be transported to the horizontal spiral discharge sedimentation centrifuge (7) be arranged in directly over sludge storage bin and dewater.Regulate the treatment capacity of horizontal spiral discharge sedimentation centrifuge (7) and the chemical feeding quantity of dosing spiral pump (6) by variable frequency control, whole-process automatic control is realized by on-the-spot PLC control cabinet.This process whole process is carried out in integrated closed system, and make the smell of mud, body refuse, muddy water is hedged off from the outer world comes completely, overcomes traditional calcium carbonate chemistry sludge treatment technique to the disadvantageous effect of surrounding enviroment; And save dewatered sludge in traditional calcium carbonate chemistry sludge treatment technique and be delivered to electric cost in sludge storage bin (9) process and facility investment.
Dewatered sludge after dehydration directly relies on action of gravity to pass through lubricating substance cylinder (8) and falls into sludge storage bin (9) immediately below whizzer, the clear water produced in dehydration to the effluent weir of sludge thickener (1) by Cemented filling, is reentered Waste Water Treatment and carries out circular treatment.The mud falling into sludge storage bin (9) waits for outward transport in feed bin free setting.In calcium carbonate chemistry sludge settling process, sludge density can strengthen further, viscosity strengthens thereupon, is easy to harden, and the mud hardened easily causes feed bin discharge hole to block, depend gravity alone and cannot discharge sludge storage bin smoothly, therefore this programme devises discharging balladeur train (15) in sludge storage bin (9), in wedge shape, to-and-fro movement on warehouse base plate, do not stay dead angle, prevent mud to harden blocking discharge port.Sludge storage bin (9) base plate has two discharge ports, each discharge port is of a size of 600mm × 1000mm, twin shaft discharge auger (12) is set below opening, by the rotation of twin shaft discharge auger (12), the sludge crushing of bulk is become fritter, and along with the rotary transfer of spiral is to feed opening, falls on the mud car that is parked in immediately below sludge storage bin and transport outward.
Claims (2)
1. calcium carbonate chemistry sludge dewatering dumping device, it is characterized in that: bottom the sludge thickener being positioned at sludge dewatering machine room north side, be connected to sludge out pipe, sludge out pipe end is connected to the sludge delivery pump ingress of sludge dewatering machine room one deck, the outlet of thickened sludge transferpump connects thickened sludge transport pipe, and thickened sludge transport pipe end is connected to the horizontal spiral discharge sedimentation centrifuge being positioned at three layers, sludge dewatering machine room; Thickened sludge transport pipe is equipped with line mixer in the horizontal segment of two layers; Three slot type PAM preparation facilitiess are arranged on sludge dewatering machine room one deck, its medicine outlet is connected to drug discharging tube, drug discharging tube end is connected to the entrance of dosing spiral pump, and the outlet of dosing spiral pump connects drug delivery pipe, and drug delivery pipe end is received and is positioned in the line mixer import of two layers; Immediately below the mud mouth of horizontal spiral discharge sedimentation centrifuge, floor has hole, and lubricating substance cylinder thus hole passes through; The upper end of lubricating substance cylinder is connected to the mud mouth of horizontal spiral discharge sedimentation centrifuge, and lower end is connected to the opening for feed of sludge storage bin; The warehouse of sludge storage bin is installed on two floor faces immediately below horizontal spiral discharge sedimentation centrifuge.
2. calcium carbonate chemistry sludge dewatering dumping device according to claim 1, is characterized in that: described warehouse inner bottom part is provided with reciprocating discharging balladeur train on warehouse base plate plane, and discharging balladeur train is wedge shape; Warehouse base plate below discharging balladeur train has two discharge ports, below discharge port, be provided with discharge gate, twin shaft discharge auger is housed immediately below discharge gate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520768412.XU CN205024075U (en) | 2015-10-07 | 2015-10-07 | Calcium carbonate chemical sludge discharge apparatus that dewaters |
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| CN201520768412.XU CN205024075U (en) | 2015-10-07 | 2015-10-07 | Calcium carbonate chemical sludge discharge apparatus that dewaters |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105110600A (en) * | 2015-10-07 | 2015-12-02 | 中国轻工业长沙工程有限公司 | Calcium carbonate chemical sludge dehydration discharge device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105110600A (en) * | 2015-10-07 | 2015-12-02 | 中国轻工业长沙工程有限公司 | Calcium carbonate chemical sludge dehydration discharge device |
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