CN201913179U

CN201913179U - Waste sand roasting furnace

Info

Publication number: CN201913179U
Application number: CN2010206486788U
Authority: CN
Inventors: 秦勇
Original assignee: LIUZHOU AOKAI ENGINEERING MACHINERY Co Ltd
Current assignee: LIUZHOU AOKAI ENGINEERING MACHINERY Co Ltd
Priority date: 2010-12-09
Filing date: 2010-12-09
Publication date: 2011-08-03
Anticipated expiration: 2020-12-09

Abstract

The utility model relates to a waste sand roasting furnace. A boiling furnace plate (3) is provided with a plurality of nozzles (4), the nozzles (4) respectively comprise a gas guide pipe (4.2), a cap body (4.4), a cap cover (4.5), a spraying port cover (4.3) and the like, wherein the gas guide pipes (4.2) are arranged vertically, the cap bodies (4.4) are sleeved outside the upper ends of the gas guide pipes (4.2), the cylindrical walls of the cap bodies (4.4) are respectively provided with a gas spraying through hole with an outlet facing downwards, the cap covers (4.5) are connected onto the cap bodies (4.4), and the spraying port covers (4.3) are arranged outside the cap bodies (4.4); when the cap bodies (4.4) are lifted to limited positions relative to the gas guide pipes (4.2), the outlets of the gas spraying through holes of the cap bodies (4.4) are arranged outside the spraying port covers (4.3); and when the cap bodies (4.4) are lowered to limited positions relative to the gas guide pipes (4.2), the outlets of the gas spraying through holes of the cap bodies (4.4) are sealed by the inner side faces of the spraying port covers (4.3). Compared with the prior art, the waste sand roasting furnace can solve the problem of nozzle clogging.

Description

The antiquated sand roaster

Technical field

The utility model relates to recycling cast waste sand special equipment technical field, particularly a kind of stove that is used for the roasting antiquated sand.

Background technology

Have now in the roaster that recycling cast waste sand is handled, having a kind of is that name is called the Chinese patent of " boiling type resin sand thermal reclamation stove " (patent announcement number is CN2550091, patent announcement day is on 05 14th, 2003), the technical scheme of this regenerating furnace is: comprise body of heater, burner, chamber under the stove, boiling plate, a plurality of nozzles, boiling-house, short dividing plate of polylith and high dividing plate, reach all parts such as knockout tube, boiling plate is formed by the polylith plate overlap joint with stepped seam, its periphery overlaps mutually with fixed head, the adjacent panels stop portion adds fixed by nut by the boiling nozzle, has the gap between stop portion and nozzle and two plate fixing holes; Perhaps, boiling plate 7 is formed by the polylith assembly unit plate overlap joint with stepped seam, and its periphery embeds in the inboard wall of furnace body groove, and the lining refractory block has the gap between its outer rim and trench wall; Boiling plate tilts to the body of heater rear portion; Go into the burner gas flow rate greater than the jet flow velocity of boiling nozzle fumarole.Although this stove also is in order to solve the spray nozzle clogging problem of fluidized bed furnace plate, can still be in level owing to the spout of its nozzle, can not stop the problem of the surplus sand plug plug nozzle in flame-out back, still need blowing out frequently to pull down the fluidized bed furnace plate and clear up the replacing nozzle.

The utility model content

Task of the present utility model provides a kind of antiquated sand roaster, and it can solve the problem of existing antiquated sand roaster spray nozzle clogging.

In order to address the above problem, the technical scheme of this antiquated sand roaster is: this antiquated sand roaster includes the combustion chamber that includes fluidized bed furnace plate, deflector and the body of heater of boiling-house, and burner, be distributed with a plurality of nozzles on the described fluidized bed furnace plate, described nozzle has a wireway that vertically is provided with, this outer cap body that is set with a cylindrical shell shape versatilely in wireway upper end, the outside that described wireway upper end is positioned at the part of described cap body is provided with the make progress flange of raised position of the described cap body of qualification, establishes on the barrel of described cap body to the jet through hole that goes out mouth down; The outside of described cap body and below be provided with and be connected on the described wireway spout cover that opening makes progress; The upper end of described cap body is connected with the cap of outer rim greater than described spout cover outer rim; Rise to respect to described wireway under the state that limits the position when described cap body, the outlet of the jet through hole of described cap body is positioned at described spout cover outside; Drop to respect to described wireway under the state that limits the position when described cap body, the jet through hole outlet of described cap body is sealed by the medial surface of described spout cover.

In the technical scheme of above-mentioned antiquated sand roaster, described cap is connected with described cap body by screw thread; Described spout cover is connected with described wireway by screw thread; Described wireway is installed in the through hole of described fluidized bed furnace plate, and fixedlys connected with described fluidized bed furnace plate by the nut of described spout cover.The distance of the end face of described each spout cover and described fluidized bed furnace plate top surface is greater than 6 centimetres.

Adopted the utility model of such scheme to compare and had following beneficial effect with the prior art scheme:

1. because the jet via openings of cap body, and loses under the effect of air-flow at the cap body and to fall in the withdrawal spout cover in the meeting, therefore can prevent that the jet through hole of cap body is blocked down.

2. can significantly reduce the idle cost and the maintenance cost that cause stove because of spray nozzle clogging.

Description of drawings

Fig. 1 is the front view of the utility model embodiment;

Fig. 2 is the structural representation that nozzle is connected with the fluidized bed furnace plate among the utility model embodiment.

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing embodiment:

A kind of antiquated sand roaster shown in Figure 1, a body of heater 2 is arranged, a burner 1 is housed in the lower right of body of heater 2, the upper right side of body of heater 2 is provided with the antiquated sand inlet, with on the pipeline that this antiquated sand inlet is connected Electromagnetic Flow control valve 5 is housed, antiquated sand preheater 6 and hopper 7, the furnace roof of body of heater 2 is equipped with thermocouple 8, the left side wall of body of heater 2 has through burning the sand outlet, fluidized bed furnace plate 3 is housed in body of heater 2, fluidized bed furnace plate 3 is separated into the boiling-house on top and two parts in combustion chamber of bottom with body of heater 2 inner cavity chamber, deflector 8 is equipped with in the top of fluidized bed furnace plate 3, is distributed with various nozzle 4 on fluidized bed furnace plate 3.

Shown in Figure 2, nozzle 4 has a wireway 4.2 that vertically is provided with, be set with the cap body 4.4 of a cylindrical shell shape outside the upper end of wireway 4.2 versatilely, the outside that wireway 4.2 upper ends are positioned at the part of cap body 4.4 is provided with the upwards flange of raised position of qualification cap body 4.4, establishes on the barrel of cap body 4.4 to the jet through hole that goes out mouth down; The outside of cap body 4.4 and below be by being threaded on the wireway 4.2 the spout cover 4.3 that opening makes progress; The wireway 4.2 of each nozzle 4 fixedly is installed in the through hole of fluidized bed furnace plate 3 by spout cover 4.3 and nut 4.1.The upper end of cap body 4.4 is by the cap 4.5 of outer rim greater than spout cover 4.3 outer rims that be threaded; The effect of ejection air-flow rises under the state that limits the position with respect to described wireway 4.2 in cap body 4.4 is subjected to wireway 4.2, and the outlet of the jet through hole of cap body 4.4 is positioned at the outside of spout cover 4.3; In cap body 4.4 is subjected to wireway 4.2, spray under the situation of active force less than its gravity of air-flow, cap body 4.4 can drop to the qualification position with respect to wireway 4.2, under this state, the jet through hole outlet of cap body 4.4 has dropped to by in the spout cover 4.3, and is stopped up the jet through hole of cap body 4.4 by the sealing of the medial surface of spout cover 4.3 to prevent in-furnace sand.The distance of the end face of the spout cover 4.3 of each nozzle 4 and fluidized bed furnace plate 3 end faces is 7 centimetres, and when avoiding stove to quit work, remaining sand covers the end face of spout cover 4.3 as far as possible.

Claims

1. antiquated sand roaster, include and include fluidized bed furnace plate (3), the body of heater (2) of the combustion chamber of deflector (3) and boiling-house, and burner (1), be distributed with a plurality of nozzles (4) on the described fluidized bed furnace plate (3), it is characterized in that: described nozzle (4) has a wireway (4.2) that vertically is provided with, the outer cap body (4.4) that is set with a cylindrical shell shape versatilely in this wireway (4.2) upper end, the outside that described wireway (4.2) upper end is positioned at the part of described cap body (4.4) is provided with the upwards flange of raised position of the described cap body of qualification (4.4), establishes on the barrel of described cap body (4.4) to the jet through hole that goes out mouth down; Be provided with in the outside of described cap body (4.4) and below and be connected on the described wireway (4.2) the spout cover (4.3) that opening makes progress; The upper end of described cap body (4.4) is connected with the cap (4.5) of outer rim greater than described spout cover (4.3) outer rim; Rise to respect to described wireway (4.2) under the state that limits the position when described cap body (4.4), the outlet of the jet through hole of described cap body (4.4) is positioned at described spout cover (4.3) outside; Drop to respect to described wireway (4.2) under the state that limits the position when described cap body (4.4), the jet through hole outlet of described cap body (4.4) is sealed by the medial surface of described spout cover (4.3).

2. antiquated sand roaster according to claim 1 is characterized in that: described cap (4.5) is connected with described cap body (4.4) by screw thread; Described spout cover (4.3) is connected with described wireway (4.2) by screw thread; Described wireway (4.2) is installed in the through hole of described fluidized bed furnace plate (3), and fixedlys connected with described fluidized bed furnace plate (3) by the nut (4.1) of described spout cover (4.3).

3. antiquated sand roaster according to claim 1 and 2 is characterized in that: the distance of the end face of described spout cover (4.3) and described fluidized bed furnace plate (3) end face is greater than 6 centimetres.