EP0150819A2 - Dispositif et procédé pour le nettoyage à haute pression des fours à coke - Google Patents

Dispositif et procédé pour le nettoyage à haute pression des fours à coke Download PDF

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Publication number
EP0150819A2
EP0150819A2 EP85100730A EP85100730A EP0150819A2 EP 0150819 A2 EP0150819 A2 EP 0150819A2 EP 85100730 A EP85100730 A EP 85100730A EP 85100730 A EP85100730 A EP 85100730A EP 0150819 A2 EP0150819 A2 EP 0150819A2
Authority
EP
European Patent Office
Prior art keywords
pressure
pump
hydraulically driven
piston
piston pump
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP85100730A
Other languages
German (de)
English (en)
Other versions
EP0150819A3 (en
EP0150819B1 (fr
Inventor
Norbert Walther
Kurt Dr. Lorenz
August Lucas
Engelbert Bruns
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Still Otto GmbH
Original Assignee
Still Otto GmbH
Carl Still GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19843439457 external-priority patent/DE3439457A1/de
Priority claimed from DE19843439458 external-priority patent/DE3439458A1/de
Application filed by Still Otto GmbH, Carl Still GmbH and Co KG filed Critical Still Otto GmbH
Publication of EP0150819A2 publication Critical patent/EP0150819A2/fr
Publication of EP0150819A3 publication Critical patent/EP0150819A3/de
Application granted granted Critical
Publication of EP0150819B1 publication Critical patent/EP0150819B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B43/00—Preventing or removing incrustations
    • C10B43/02—Removing incrustations
    • C10B43/08—Removing incrustations with liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/14—Pistons, piston-rods or piston-rod connections
    • F04B53/143—Sealing provided on the piston
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
    • F04B9/109—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers
    • F04B9/111—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers with two mechanically connected pumping members
    • F04B9/115—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers with two mechanically connected pumping members reciprocating movement of the pumping members being obtained by two single-acting liquid motors, each acting in one direction

Definitions

  • the invention relates to a hydraulically driven high-pressure piston pump for conveying z. B. hot or cold media with solid particles, such as. B. a coal mash, or z. B. for cleaning sealing surfaces of z. B. Doors and / or door frames from Verkokun g s ovens.
  • a hydraulically driven high-pressure piston pump for conveying z. B. hot or cold media with solid particles, such as. B. a coal mash, or z. B. for cleaning sealing surfaces of z. B. Doors and / or door frames from Verkokun g s ovens.
  • a method for cleaning the doors and / or door frames of horizontal chamber coking ovens in which the deposits on the sealing surfaces are removed by high-pressure liquid jets.
  • the device described therein contains a large number of high-pressure nozzles arranged on the entire circumference of the doors or door frames, which are connected to a high-pressure pump via a collecting line. These high-pressure nozzles are permanently installed on the cleaning device and are all acted on simultaneously. All high-pressure liquid nozzles are arranged within a large hood for extracting the liquid dirt mist. This means that the height of the hood corresponds at least to the height of the door or the door frame. The amount of water required for this facility to clean the entire circumference of the door at the same time is considerable. The same applies to the suction performance of these very large hoods. This document does not say anything about the type of pump for the high-pressure cleaning water.
  • the object of the invention is now to propose a suitable high-pressure piston pump in which these sealing problems do not exist and the use of flushing oil is significantly reduced or can be eliminated and which can be used in a wide variety of fields, in particular coking technology.
  • the hydraulic high-pressure piston pump according to the invention essentially consists of a pump cylinder, a double piston and inlet and outlet valves.
  • the cylinder is divided into two delivery rooms and two hydraulic rooms. This ensures that no reciprocating parts are in direct contact with the atmosphere.
  • the plain bearings are located in the hydraulic chamber and the entire pump cylinder is divided in half.
  • the required hydraulic pressure is generated by a conventional hydraulic pump. If you compare the double piston with an otherwise usual piston with crank drive, the double piston has practically no idle stroke. This means that with a much smaller unit and a relatively low piston speed, larger delivery rates can be achieved than with piston pumps with crank drive or with differential plunger pumps.
  • the invention proposes in particular that the double piston is braked magnetically or mechanically in good time on the end walls of the pump cylinder.
  • the supply of hydraulic fluid with hydraulic fluid is controlled automatically via the inlet and outlet valves.
  • the high-pressure piston pump can be used in accordance with claims 5 and 6, in particular on operating machines on horizontal chamber coking furnace batteries which can be moved in parallel along the furnace battery and which have high-pressure nozzles for cleaning fluid for cleaning the sealing surfaces on coke oven doors and frames.
  • a high pressure pump is known, which consists of two hydraulically operated differential plunger pumps, which are connected in parallel and set to alternate operation. Apart from the fact that two pumps are required, there is also the problem of piston seals to the atmosphere described in the pumps provided there.
  • the high-pressure piston pump proposed according to the invention finds a particularly advantageous field of application, since it requires considerably less space for installation on the operating machines. This is a great advantage especially for retrofitting existing machines.
  • the combination according to the invention of the hydraulically driven high-pressure double-piston pump with the high-pressure liquid nozzles and the suction hood directly surrounding them enables the cleaning water to be sprayed onto the sealing surfaces under extremely high pressure and the liquid mist and the solid particles separated from the cleaning surfaces to be sucked off again directly.
  • the particular advantage of this device is that only a relatively small amount of liquid mist and solid particles have to be extracted in a very small space.
  • the sealing surface of the suction hood against the door is very small and the proportion of false air entering from outside can be kept very low.
  • the cutting edge of the coke oven to arrange a pair of high-pressure nozzles that always work from top to bottom.
  • the fact that only one pair of nozzles is applied in each case means that the amount of high-pressure water to be supplied per unit of time can again be considerably reduced compared to the previous devices.
  • the suction can be controlled by means of corresponding shut-off devices in such a way that only the suction hood on which the nozzles are acted on is extracted.
  • the suction hood can be connected via flexible lines to the connections permanently mounted on the operating machine.
  • the duct is preferably lined with Teflon so that no solids are deposited or caked on. Any water residues and solids that escape despite the intensive suction at the edge of the suction hood are appropriately collected according to claim 13 in a drip pan below the door cleaning and are directed into a waste water container. Since the suction hood runs along the circumference of the door along the cleaning surfaces during operation a complete seal against the door is not always possible. To avoid emissions, the invention therefore provides that according to claim 10 between the door and the fixed devices, such as the cleaning chamber and / or the suction channel, elastic seals are arranged, which abut the door body or the door plug.
  • the required hydraulic fluid pressure is generated by a conventional hydraulic pump.
  • a clean hydraulic fluid free of solids can be produced with a conventional hydraulic pump because the piston seals are less stressed.
  • the pump cylinder (1) is limited by the end walls (13 a) and 13 b), in which the inlet and outlet valves (8 a., 8 b, 9 a, 9 b) for the pumped medium are located.
  • the two hydraulic spaces (7 a) and (7 b) are interrupted by the partition (2).
  • the two pistons (5 a) and (5 b) are connected to each other via a piston rod (3), which is guided in slide bearings (4) both in the partition (2) and in additional bearing supports (14).
  • the bearing brackets (14) are arranged at a certain distance parallel to the partition (2) and have passage openings (15) for the hydraulic fluid.
  • inlet and outlet openings (10 a, 10 b, 11 a, 1 1 b) for the hydraulic fluid in the cylindrical jacket of the pump cylinder.
  • the pistons (5a) and (5 b) have piston rig seals (12 a) and (12 b) on their circumference for sealing the hydraulic spaces (7 a, 7 b) with respect to the outer delivery spaces (6 a, 6 b).
  • adjustable bores (16) are arranged in the pistons (5 a) and (5 b), which allow the hydraulic fluid as a rinsing fluid to escape at the circumference of the pistons in radially outward openings.
  • the high-pressure water cleaning system shown schematically in FIG. 2 serves to clean the sealing edge on coke oven doors and the gap between the stone plug holder and the sealing edge.
  • these sealing surfaces to be cleaned on the coke oven door are indicated by the rectangular frame (35) (37) are moved along the sealing surfaces by means of suitable carrier slides and they are connected to the pressure side of the high-pressure piston pump via the flexible water supply lines (38) and (39) (1) connected.
  • the sealing surfaces (35) are cleaned alternately, the carrier slides with high-pressure nozzles (36) and (37) initially z. B. in the direction of the arrow, clockwise, around the half frame (35) and thereby the nozzle (36) is acted upon. The direction of rotation is then reversed and the nozzle (37) is acted upon from top to bottom.
  • the two high-pressure nozzles are acted upon alternately with the aid of the changeover valve (33).
  • the inlets and outlets to the suction and pressure side of the high-pressure piston pump are switched.
  • the inflow and outflow of the hydraulic fluid to the high-pressure piston pump is effected using the changeover valve (19).
  • the pump operates as follows: To move the piston rod (3) to the left, hydraulic fluid with a pressure of 100 to 160 bar is fed from the pressure accumulator (20) via the supply lines (26) and (25) into the hydraulic chamber (17 b) pumped. At the same time, the hydraulic fluid runs out of the hydraulic chamber (17 a) via the lines (24) and (27) back into the hydraulic fluid reservoir (23).
  • the delivery space (18 a) increases and water is drawn in from the water tank (34) via the lines (43) and (48), at the same time the delivery space (18 b) decreases and the water is led at a pressure of approximately 300 to 500 bar via lines (46), (41) and (40) to a high-pressure nozzle (36) or (37). For this area of application, these are shown in FIG shown drilling holes (16) closed. The lines (45) and (47) are blocked off.
  • Lines (46) and (48) are shut off while lines (45) and (47) are opened.
  • the high-pressure water reaches the nozzles via lines (47),. (42) and (40) and the water is drawn in via lines (44) and (45).
  • a suction channel (49) surrounding the sealing surfaces (35) to be cleaned is shown in FIG. 2, through which the liquid, mist and dirt particles are suctioned off.
  • the suction mixture enters the water and solids separator (51), the separated solids settling on the bottom and the water via the line (56), the shut-off valve (57), the pump (58) and the Line (59) to the waste water tank (60) is promoted.
  • any water residues and solids that are not collected by the suction hood surrounding the high-pressure nozzles and are discharged via the suction channel (49) are collected in a drip pan located below the entire door cleaning system and also enter via the shut-off valve (63) and the line (62) the waste water tank (60). While the water and solids separator (51) and the associated pumps and blowers are expediently arranged on the respective service trolley, the waste water container (60) can also be located at a suitable point, for. B. on the battery heads.
  • FIG. 3 shows two sets of high-pressure water cleaning devices which can be moved on the rectangular circumference of a coking oven door.
  • the pressurized water is conducted to the high-pressure nozzles (36), which are each surrounded by a suction hood (73), via the supply lines (38) and the elastic pressurized water hoses (86) which are arranged on the service trolley.
  • FIG. 3 there is a hood at the upper end, the other at the lower end of the coking oven door.
  • Both suction hoods (73), together with the high-pressure nozzles (36) arranged therein, are simultaneously moved in the direction of the arrow along the sealing surface (35) to be cleaned, only the downward-moving high-pressure nozzles (36) and the associated suction hood (73) being in operation. After moving half the circumference of the coke oven door, the direction of movement is reversed and the other half of the door frame is cleaned.
  • the suction hood (73) is connected to the suction channel (49) via a connecting piece (74).
  • This nozzle (74) is guided in the longitudinal gap of the suction channel (49) during the movement of the suction hood (73), the rubber sealing lips (82), which seal the gap of the suction channel (49), being pressed apart by the nozzle (74) .
  • the suction hood (73) with the nozzles (36) arranged therein is attached to a carrier carriage (76) which can be moved in the guide rails (77) of the guide and lifting platform (79) by means of circulating transport chains (78).
  • the side of the suction channel facing away from the guide and lifting platform (79) is sealed off from the door body (70) by means of the elastic seal (85), an additional cleaning chamber (74) being formed in which any water residues and solids that may still escape can fall down into the drip pan.
  • the suction channel (49) has throttle valves (88) and (89) at the lower end and is connected to a water and solids separator via the suction lines (87) and (50).

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Details Of Reciprocating Pumps (AREA)
EP85100730A 1984-01-28 1985-01-25 Dispositif et procédé pour le nettoyage à haute pression des fours à coke Expired EP0150819B1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE3402920 1984-01-28
DE3402920 1984-01-28
DE19843439457 DE3439457A1 (de) 1984-10-27 1984-10-27 Hochdruckwasserreinigung
DE3439458 1984-10-27
DE19843439458 DE3439458A1 (de) 1984-01-28 1984-10-27 Hydraulisch angetriebene hochdruck-kolbenpumpe
DE3439457 1984-10-27

Publications (3)

Publication Number Publication Date
EP0150819A2 true EP0150819A2 (fr) 1985-08-07
EP0150819A3 EP0150819A3 (en) 1985-11-27
EP0150819B1 EP0150819B1 (fr) 1989-06-14

Family

ID=27191653

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85100730A Expired EP0150819B1 (fr) 1984-01-28 1985-01-25 Dispositif et procédé pour le nettoyage à haute pression des fours à coke

Country Status (2)

Country Link
US (1) US4690160A (fr)
EP (1) EP0150819B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102032239A (zh) * 2010-12-06 2011-04-27 韶关液压件厂有限公司 一种液压缸用长行程传感器保护管防弯装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2219122B1 (es) * 2001-07-27 2005-09-16 Bolsaplast, S.A. Bomba para sistemas desalinizadores de agua marina por osmosis inversa.
US10568811B2 (en) 2016-02-22 2020-02-25 R.P. Scherer Technologies, Llc Multiple-fluid injection pump
GB201605195D0 (en) * 2016-03-29 2016-05-11 Yta B V Pump system
US20180347553A1 (en) * 2017-06-05 2018-12-06 Stpape Co., Ltd. Double-acting pneumatic pump
CN113967558B (zh) * 2021-11-29 2022-06-14 南京赛洛德科技发展有限公司 一种适用于高速加工工件的油雾润滑喷头

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3162133A (en) * 1962-02-26 1964-12-22 James E Smith Hydraulic power converter
US3256827A (en) * 1964-12-21 1966-06-21 James E Smith Hydraulic power converter
DE2143595A1 (de) * 1971-08-31 1973-03-15 Hartung Kuhn & Co Maschf Verfahren und einrichtung zum reinigen von verkokungsofentueren und -tuerrahmen
DE2434195B1 (fr) * 1974-07-16 1975-05-28 Hartung, Kuhn & Co Maschinenfabrik Gmbh, 4000 Duesseldorf
GB1465251A (en) * 1975-04-19 1977-02-23 Ind High Pressure Systems Inc Apparatus for cleaning divergent adjoining surfaces of doors door jambs and the like
EP0015144A1 (fr) * 1979-02-22 1980-09-03 Weatherford/Dmc Piston et garniture pour pompe à boue
US4276123A (en) * 1980-09-22 1981-06-30 Koppers Company, Inc. Coke oven battery bench cleaning apparatus
FR2492470A1 (fr) * 1980-10-20 1982-04-23 Stanford Res Inst Int Dispositif de recuperation d'energie, appareil de pompage de fluide a moto-pompes et procede de recuperation de l'energie du type utilisant ce dispositif et cet appareil

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US2732846A (en) * 1956-01-31 berezny
US3604433A (en) * 1969-01-27 1971-09-14 California Car Wash Wheel washing apparatus
DE1923954A1 (de) * 1969-05-10 1970-11-19 Elmer Dipl Ing Adam Schmutzabstreifring fuer Zylinderinnenflaechen
US3659306A (en) * 1970-06-22 1972-05-02 Us Navy Wiper for machined surfaces
US3705437A (en) * 1970-08-17 1972-12-12 Cleaning Systems Ind Inc Combination high pressure washer and vacuum
US3990949A (en) * 1974-11-21 1976-11-09 Ovsyannikov Anatoly Filippovic Device for returning remainders from the platform to the interior of a coke oven
US3976401A (en) * 1975-01-02 1976-08-24 Mountain Donald C Pump for abrasive slurries and the like
NL7609329A (nl) * 1976-08-23 1978-02-27 Hoogovens Ijmuiden Bv Inrichting voor het reinigen van een kooksoven- deur.
US4097340A (en) * 1977-08-24 1978-06-27 Dr. C. Otto & Comp. G.M.B.H. Apparatus for cleaning coke oven doors
US4365383A (en) * 1979-06-25 1982-12-28 Elan Pressure Clean Limited Cleaning apparatus for components
JPS56115886A (en) * 1980-02-19 1981-09-11 Yoichi Nishioka Diaphragm pump
US4381180A (en) * 1981-07-13 1983-04-26 Sell John R Double diaphragm pump with controlling slide valve and adjustable stroke

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3162133A (en) * 1962-02-26 1964-12-22 James E Smith Hydraulic power converter
US3256827A (en) * 1964-12-21 1966-06-21 James E Smith Hydraulic power converter
DE2143595A1 (de) * 1971-08-31 1973-03-15 Hartung Kuhn & Co Maschf Verfahren und einrichtung zum reinigen von verkokungsofentueren und -tuerrahmen
DE2434195B1 (fr) * 1974-07-16 1975-05-28 Hartung, Kuhn & Co Maschinenfabrik Gmbh, 4000 Duesseldorf
GB1465251A (en) * 1975-04-19 1977-02-23 Ind High Pressure Systems Inc Apparatus for cleaning divergent adjoining surfaces of doors door jambs and the like
EP0015144A1 (fr) * 1979-02-22 1980-09-03 Weatherford/Dmc Piston et garniture pour pompe à boue
US4276123A (en) * 1980-09-22 1981-06-30 Koppers Company, Inc. Coke oven battery bench cleaning apparatus
FR2492470A1 (fr) * 1980-10-20 1982-04-23 Stanford Res Inst Int Dispositif de recuperation d'energie, appareil de pompage de fluide a moto-pompes et procede de recuperation de l'energie du type utilisant ce dispositif et cet appareil

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102032239A (zh) * 2010-12-06 2011-04-27 韶关液压件厂有限公司 一种液压缸用长行程传感器保护管防弯装置
CN102032239B (zh) * 2010-12-06 2013-04-03 韶关液压件厂有限公司 一种液压缸用长行程传感器保护管防弯装置

Also Published As

Publication number Publication date
US4690160A (en) 1987-09-01
EP0150819A3 (en) 1985-11-27
EP0150819B1 (fr) 1989-06-14

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