CN2369801Y

CN2369801Y - Improved slide riser gate valve for molten steel casting ladle

Info

Publication number: CN2369801Y
Application number: CN 99226606
Authority: CN
Inventors: 杨玉富
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-05-13
Filing date: 1999-05-13
Publication date: 2000-03-22
Anticipated expiration: 2009-05-13

Abstract

The utility model discloses an improved slide riser gate valve for a molten steel casting ladle, which is characterized in that a door hinge and an elbow rod shaft pin seat respectively have a single ear; the door hinge is arranged on the bottom surface of a spring bracket; an elbow rod shaft pin is a long pin. The elbow rod shaft pin of the utility model only can be inserted from one direction and can not fall off, the loading and unloading working operation is simplified, and the occurrence of the automatic open accident of a door frame of the gate valve is avoided; an anti-swashing plate is additionally arranged at the lower part of the upper end of a pushing device, and the service life of the gate valve is extended; the connecting structure of the upper and lower gate bricks and upper and lower sliding plates is changed into plane connection from male and female tenon connection, which causes the upper and the lower sliding plates to be uniform and to mutually change to use.

Description

A kind of molten steel casting ladle slide gate nozzle gate valve of improvement

The utility model relates to a kind of gate valve of liquid metal casting ladle, specifically mainly is the toggle link pivot pin and the upper and lower slide plate of hinge and locking device in the steel ladle slide gate nozzle gate valve are improved.

In the prior art as ZL95244344.9, ZL97241986.1 (Fig. 1, shown in 2), the hinge in the slide gate nozzle gate valve that this class molten steel casting ladle is used and the toggle shaft key seat 9 of locking device are one, be the ears matrix, the toggle link pivot pin 12 of hinge 11 and toggle link 14 is one, respectively from last, lower elbow lever pivot pin seat advances pin toward the center, and be close to that to decide screw 21 fixing, not only loading and unloading inconvenience, and the lower elbow lever pivot pin 12 of close bottom easily comes off, doorframe once took place from the serious accident of opening, it is fragile that holding device does not have the splashproof measure, in the making of employing refractory material, lower skateboard is also not exclusively unified.

The purpose of this utility model is to provide a kind of molten steel casting ladle slide gate nozzle gate valve of improvement, and it can prevent that the toggle link pivot pin from coming off, the accident of avoiding the gate valve doorframe to open automatically.

The technical solution of the utility model is achieved in that a kind of molten steel casting ladle slide gate nozzle gate valve of improvement, it mainly comprises and is installed in upper and lower brick cup, the upper nozzle brick on the terminal pad at the bottom of the molten steel casting ladle, be contained in the installing plate under the terminal pad at the bottom of the molten steel casting ladle, place upper slide and heat-resisting magnet steel in the installing plate, place lower skateboard and heat-resisting magnet steel in the slider bar, be contained in the lower nozzle brick below the lower skateboard; Support the doorframe of slider bar, lower skateboard and thermal insulation board and the holding device that matches with it; This doorframe is by hinge on hinge and the installing plate and the toggle shaft key seat on the installing plate, connect and support by the toggle link pivot pin by toggle link, be provided with concavo-convex locating slot at upper and lower slide plate and installing plate, slider bar, it is characterized in that: hinge and toggle shaft key seat are monaural, hinge is contained in the bottom surface of spring carrier, and the toggle link pivot pin is to have strong market potential.

Hinge in the utility model and toggle shaft key seat change existing ears matrix into the monaural type, hinge is moved to the bottom surface of spring carrier by the doorframe side, the toggle link pivot pin changes one into by two short pins of every side and has strong market potential, and approximate L type or the T type of being of this section of having strong market potential, can only insert from a direction from top to bottom and can not come off, not only simplified handling procedure, and the generation of having avoided the gate valve doorframe to open accident automatically, a splash-back is also set up in this external holding device end below, prolonged the service life of gate valve greatly, and on, lower nozzle brick and last, the syndeton of lower skateboard changes the plane into by tongue and groove and connects, and makes, lower skateboard is unified, can be general mutually.

Fig. 1 is the structural representation of prior art one gate valve

Fig. 2 is the structural representation of another gate valve of prior art

Fig. 3 is the main cutaway view of the utility model one embodiment

Fig. 4 faces upward cutaway view for the part of Fig. 3

Fig. 5 is the sectional view of Fig. 3

Fig. 6,8,10,12,14,16,18,20 is the main cutaway view of several embodiment of the utility model middle slide plate

Fig. 7,9,11,13,15,17,19,21 is respectively corresponding Fig. 6,8,10,12,14,16,18,20 vertical view

Figure 22,23 is the cutaway view of several embodiment of upper nozzle brick in the utility model

Figure 24,25,26,27 is the cutaway view of several embodiment of lower nozzle brick in the utility model

Figure 28,29 is two embodiment master's cutaway views of the lower nozzle brick protection iron-clad in the utility model

Figure 30,32,34,36 is several embodiment master's cutaway views of the slide plate protection iron-clad in the utility model

Figure 31,33,35,37 is respectively Figure 30,32,34,36 vertical view

The utility model will be further described below in conjunction with drawings and Examples.The utility model mainly comprise be installed at the bottom of the molten steel casting ladle on the terminal pad 7 on, following brick cup 1,2, upper nozzle brick 3, be contained in the installing plate 8 under the terminal pad 7 at the bottom of the molten steel casting ladle, for preventing that rubbing from having a tongue and groove 32 between installing plate 8 and terminal pad 7, be provided with Baltimore groove in the installing plate of present embodiment, convex slot is arranged in the terminal pad, general terminal pad 7 welds mutually with at the bottom of the molten metal container, installing plate 8 adopts bolt to be connected with terminal pad 7, be built-in with upper slide 4 and heat-resisting magnet steel 31 at installing plate 8, be built-in with lower skateboard 5 and heat-resisting magnet steel 31 in slider bar 13, be contained in the lower nozzle brick 6 below the lower skateboard 5; Support the doorframe 10 of slider bar 13, lower skateboard 5 and thermal insulation board 20 and the holding device that matches with it; This doorframe 10 is connected by toggle link pivot pin 27 with toggle shaft key seat 25 on the installing plate 8 by hinge 26, and by toggle link 14 supportings, by toggle link 14 spring in the spring box 16 17 and the spring carrier 15 that is connected in doorframe 10 both wings are held up, lower skateboard 5 and upper slide 4 are fitted tightly, at upper slide 4, lower skateboard 5, installing plate 8, be equipped with concavo-convex locating slot 30 in the slider bar 13, upper nozzle brick 3 is positioned down in the hole of brick cup 2 and installing plate 8, lower nozzle brick 6 is positioned in the hole of the tight sleeve 18 of holding device and top-fastener 19, upper slide 4, lower skateboard 5 is positioned installing plate 8 respectively, in the slider bar 13, general several concavo-convex locating slot location of adopting, to go up by 1-6 heat-resisting magnet steel 31, lower skateboard holds, between upper slide 4 and the upper nozzle brick 3 and between lower skateboard 5 and the lower nozzle brick 6 sealer 33 is arranged, such as refractory wass, slider bar 13 is in fully open position in Fig. 5, it can do straight reciprocating motion by drive rod 23 and the oil cylinder 24 that is installed on the cylinder support 22, carry out throttling, close fully or open again, it is different from prior art: hinge 26 and toggle shaft key seat 25 are monaural, hinge 26 is contained in the bottom surface of spring carrier 15, be hinge 26 and toggle link 14 shared monaural toggle shaft key seats 25, toggle link pivot pin 27 is to have strong market potential, in order to prevent that the deadweight of toggle link pivot pin from coming off, above the toggle link pivot pin, establish a baffle plate, adopt advance the pin direction all from top to bottom a direction insert, the section of toggle link pivot pin is similar to and is L type or T type in an embodiment, for avoiding gate valve motlten metal splash in casting cycle top-fastener 19 to be burnt out or cling jointly with lower nozzle brick 6, below holding device, also be provided with a splashproof steel plate 28, preferably adopt the heat-resistance stainless steel plate, be contained in the end of top-fastener 19 belows; On, lower skateboard 4,5 are equipped with and installing plate 8, the tongue and groove that slider bar 13 matches positions, present embodiment is last, the locating slot that is provided with on the lower skateboard is a groove 30, on, lower skateboard 4,5 place respectively in the metal iron-clad 29 or by ferrule 34 bandings, also can be stained with heat insulation buffer board 35 with non-sliding surface that installing plate contacts with slider bar, at metal iron-clad 29, heat insulation buffer board 35 and last, lower skateboard 4, be equipped with concavo-convex locating slot on 5 the non-sliding surface, the concavo-convex locating slot of present embodiment setting is the cylinder taper, on, the concavo-convex locating slot quantity of lower skateboard is 1-6, and present embodiment is selected 3 grooves for use; The emboss pit 30 that matches with the concavo-convex locating slot of upper and lower slide plate is set respectively in the chamber of installing plate 7 and slider bar 13, concavo-convex locating slot can be rounded, square, rectangle, garden hole shape, cylindrical, conical, truncated cone-shaped or other well-regulated shape, its optimum shape is the cylinder taper of steamed bun shape, the metal iron-clad adopts several millimeters steel plate to form through punch process in an embodiment, and carry out turning as required, make upper and lower slide plate be positioned error in installing plate, the slider bar chamber less than 1 millimeter; If ferrule, then be heated to hundreds of degree back hot jacket and form with several millimeters stirrups, upper and lower slide plate can be made polygon, circle, avette, oval, waist shape and similar rectangle and add trapezoidal octagonal, the upper and lower slide plate of present embodiment be shaped as octagonal.

Claims

1, a kind of molten steel casting ladle slide gate nozzle gate valve of improvement, it mainly comprises and is installed in upper and lower brick cup, the upper nozzle brick on the terminal pad at the bottom of the steel p water casting ladle, be contained in the installing plate under the terminal pad at the bottom of the molten steel casting ladle, place upper slide and heat-resisting magnet steel in the installing plate, place lower skateboard and heat-resisting magnet steel in the slider bar, be contained in the lower nozzle brick below the lower skateboard; Support the doorframe of slider bar, lower skateboard and thermal insulation board and the holding device that matches with it; This doorframe is by the hinge of hinge and installing plate side and the toggle shaft key seat on the installing plate, connect and support by the toggle link pivot pin by toggle link, be equipped with concavo-convex locating slot at upper and lower slide plate and installing plate, slider bar, it is characterized in that: hinge and toggle shaft key seat are monaural, hinge is contained in the bottom surface of spring carrier, and the toggle link pivot pin is to have strong market potential.

2, by the molten steel casting ladle slide gate nozzle gate valve of the described a kind of improvement of claim 1, it is characterized in that: approximate L type or the T type of being of the section of toggle link pivot pin; Below holding device, also be provided with a splashproof steel plate.

3, press the molten steel casting ladle slide gate nozzle gate valve of claim 1 or 2 described a kind of improvement, it is characterized in that: the concavo-convex locating slot of upper and lower slide plate is 1-6, and concavo-convex locating slot can be rounded, square, rectangle, garden hole shape, cylindrical, conical, truncated cone-shaped or other well-regulated shape.

4, by the molten steel casting ladle slide gate nozzle gate valve of claim 1 or 2 described a kind of improvement, it is characterized in that: upper and lower slide plate can be made polygon, circle, avette, oval, waist shape and similar rectangle and add trapezoidal octagonal.

5, by the molten steel casting ladle slide gate nozzle gate valve of claim 1 or 2 described a kind of improvement, it is characterized in that: upper and lower nozzle brick and upper and lower slide plate contact-making surface are plane or boss type.

6, by the molten steel casting ladle slide gate nozzle gate valve of claim 1 or 2 described a kind of improvement, it is characterized in that: upper and lower slide plate places respectively in the metal iron-clad or by the ferrule banding.

7, press the molten steel casting ladle slide gate nozzle gate valve of claim 1 or 2 described a kind of improvement, it is characterized in that: be stained with heat insulation buffer board at upper and lower slide plate with the non-sliding surface that installing plate contacts with slider bar, on the non-sliding surface of metal iron-clad, heat insulation buffer board and upper and lower slide plate, be equipped with concavo-convex locating slot.