Sealing door structure for tunnel kiln

Abstract

The utility model relates to a sealing door structure for a tunnel kiln, which comprises a sealing groove arranged at a kiln opening, rails are arranged at the front end and the rear end of the sealing groove, the bottom surface of the sealing groove is lower than the mounting surfaces of the rails, a lifting sealing door is arranged above the sealing groove, and the width of the sealing groove is matched with that of the sealing door; wheels matched with the tracks are arranged at the bottom of the kiln car, track beams arranged in the length direction of the kiln car are arranged on the two sides of the bottom face of the kiln car respectively, the transition riding wheels are arranged on the side faces of the tracks at the front end and the rear end of the sealing groove respectively, and the transition riding wheels are matched with the track beams. The sealing performance of the sealing door is improved on the premise that entering and exiting of a kiln car in the kiln are not affected, the possibility that air enters the kiln is reduced, and therefore the quality stability of products is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to kiln equipment technical field, concretely is a sealing door structure for tunnel kiln. BACKGROUND

[0002] Tunnel kiln is the production equipment commonly used in industry, and protective gas needs to be introduced in the production process of some products to avoid product oxidation, and a sealed kiln door needs to be arranged to prevent air from entering the tunnel kiln, and the existing tunnel kiln bottom surface is provided with an outwardly extending track, and the track is used for passing kiln cars, and the track is higher than the ground, so that the kiln door is not tightly closed, air leakage is easy, air enters from the place, and product quality problems are caused. SUMMARY

[0003] The utility model discloses a sealing door structure for tunnel kiln.

[0004] The specific scheme of the utility model discloses a sealing door structure for tunnel kiln, including the sealing groove of setting at the kiln mouth, the front end and rear end of sealing groove are all equipped with the track, the bottom surface of sealing groove is lower than the track mounting surface, the sealing door of lifting movement is equipped above sealing groove, and the width of sealing groove is matched with the sealing door, still including the kiln car and the transition supporting wheel, the bottom of kiln car is equipped with the wheel that is matched with the track, and the both sides of kiln car bottom surface each are equipped with a track beam along the length direction of kiln car, the side of the front end and rear end track of sealing groove is equipped with transition supporting wheel, and transition supporting wheel is matched with track beam.

[0005] Further, the sealing door is provided with a lifting mechanism above it, and the lifting mechanism is used to drive the sealing door to lift.

[0006] Further, the depth of the sealing groove is 15-25 cm.

[0007] Further, the track beam is made of I-beam, and the middle of the transition supporting wheel is provided with a groove matched with the bottom surface of the track beam.

[0008] The utility model has the advantages that the sealing groove lower than the track mounting surface is arranged at the sealing door, the sealing groove and the track are disconnected at the sealing groove, the sealing door is inserted into the sealing groove when closing, and complete sealing of the tunnel kiln is realized, the transition supporting wheel is arranged, and the track beam is arranged on the bottom surface of the kiln car, the kiln car crosses the sealing groove, and the kiln car does not affect the entering and exiting of the kiln. BRIEF DESCRIPTION OF DRAWINGS

[0009] Fig. 1 It is the front view of the utility model;

[0010] Fig. 2 It is the structure schematic view of the kiln car of the utility model;

[0011] In the figure: 1, tunnel kiln; 2, sealing door; 3, sealing groove; 4, track; 5, transition roller; 6, kiln car; 7, track beam. DETAILED DESCRIPTION

[0012] Reference Figs. 1-2 The embodiment is a sealing door structure for a tunnel kiln 1, comprising a sealing groove 3 arranged at a kiln opening, the front end and the rear end of the sealing groove 3 are provided with tracks 4, the bottom surface of the sealing groove 3 is lower than the installation surface of the tracks 4, a sealing door 2 that can move up and down is arranged above the sealing groove 3, the width of the sealing groove 3 matches the sealing door 2; further comprising a kiln car 6 and a transition roller 5, the bottom of the kiln car 6 is provided with wheels that match the tracks 4, two track beams 7 that are arranged along the length direction of the kiln car 6 are arranged on the two sides of the bottom surface of the kiln car 6, the side surface of the front end and the rear end tracks 4 of the sealing groove 3 are provided with the transition rollers 5, and the transition rollers 5 match the track beams 7.

[0013] Further, a lifting mechanism is arranged above the sealing door 2, and the lifting mechanism is used to drive the sealing door 2 to move up and down.

[0014] Further, the depth of the sealing groove 3 is 15-25 cm.

[0015] Further, the track beam 7 is made of an I-shaped steel, and a groove is arranged in the middle of the transition roller 5, and the groove matches the bottom surface of the track beam 7.

[0016] The inlet of the tunnel kiln 1 is provided with an air exchange chamber, and the air exchange chamber is provided with two sealing doors 2 in front and behind, in working, the kiln car 6 carries materials to the first sealing door 2, the sealing door 2 is opened, the kiln car 6 enters the air exchange chamber, then the first sealing door 2 is closed, air exchange is carried out in the air exchange chamber, the air exchange chamber is filled with inert gas, then the second sealing door 2 is opened, the kiln car 6 enters the tunnel kiln 1, and finally the second sealing door 2 is closed.

[0017] When the kiln car 6 crosses the sealing groove 3 below the sealing door 2 each time, the track beam 7 on the bottom surface of the kiln car 6 first contacts the transition roller 5, when the kiln car 6 advances, the body is supported by the transition roller 5 to cross the sealing groove 3, after the front wheel of the kiln car 6 crosses the sealing groove 3, the front wheel falls on the corresponding track 4, and then continues to drive forward along the track 4.

Claims

1. A seal door structure for a tunnel kiln, characterized in that: The utility model relates to a kiln sealing device, including the sealing groove set at the kiln mouth, the front end and rear end of sealing groove are equipped with track, the bottom surface of sealing groove is lower than track installation surface, the top of sealing groove is equipped with the sealing door of lifting movement, the width of sealing groove is matched with sealing door, still include the kiln car and transition support wheel, the bottom of kiln car is equipped with the wheel that matches with track, and the both sides of kiln car bottom surface each are equipped with a track beam along the length direction of kiln car, the side of the front end and rear end track of sealing groove is equipped with transition support wheel, and transition support wheel is matched with track beam.

2. A seal door structure for a tunnel kiln according to claim 1, characterized in that: The sealing door is provided with a lifting mechanism above, and the lifting mechanism is used to drive the sealing door to rise and fall.

3. A seal door structure for a tunnel kiln according to claim 1, characterized in that: The depth of the sealing groove is 15-25 cm.

4. A seal door structure for a tunnel kiln according to claim 1, characterized in that: The track beam is made of I-beam, and the middle of the transition support wheel is provided with a groove matched with the bottom surface of the track beam.

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