JPH0538816Y2 - - Google Patents

Description

[Detailed description of the invention] "Field of industrial application" This invention relates to an automatic dust removal device in a combustion gas dust collector using a bag filter.

``Prior Art'' Conventional bag filters, especially dust collectors used for combustion gas from waste tires, quickly accumulate dust inside the cylindrical cloth, resulting in frequent clogging. In order to eliminate this dust adhesion, measures have been taken to apply slight vibrations to the cloth using a vibrator. However, with the above-mentioned vibration, it is difficult to reliably remove dust over the entire length of a large, vertically long cylindrical cloth, which not only takes a long time to remove, which hinders dust collection work, but also There was a problem in that the cloth was often damaged and dust was scattered outside the cloth, contaminating the inside of the dust collector.

``Problems to be solved by the invention'' The purpose of this invention is to provide a bag filter dust collection device that can quickly and reliably remove dust adhering to the inner surface of a vertically long cloth without causing damage to the cloth. It is.

``Means for solving the problem'' This proposal consists of a plurality of cylindrical cloths hanging inside an outer box with a dust hopper integrally connected to the lower end, a dust-containing gas inlet at the lower part of the outer box, and a dust-containing gas inlet at the upper part. In a bag filter having a clean gas outlet, a receiving rod is attached in the vertical direction on the outside of the cylindrical cloth,
and a reciprocating pivot shaft is disposed between the cylindrical cloth, and a striking tool is fixedly mounted on the pivot shaft so that the striking tool can strike one end of the receiving rod; Further, a reciprocating crank for reciprocating the rotation support shaft around its central axis is disposed on the outside of the outer case,
Automatic dust removal device for a combustion gas dust collector, the device being formed so that the striking tool on the pivot shaft collides with the striking rod at a rapid movement position midway through the reciprocating stroke of the reciprocating crank. Composed by.

"Operation" Therefore, by reciprocating the support shafts 5, 5' from the outside of the outer case 3, the striking tool 2 is reciprocated about the support shafts 5, 5'. It rotates and strikes one end of the striking rod 6 on the side surface of the cloth 1. The impact caused by this beating is transmitted to the fabric 1 in the vertical direction via the striking rod 6, and the fabric 1 swings from side to side via the striking force 6, thereby removing the dust that has adhered and accumulated on the inner surface of the fabric 1. The dust separates from the dust hopper 3', falls down, and accumulates in the dust hopper 3'. The impact caused by the hitting is generated by the reciprocating motion of the crank 4, and is transmitted in the vertical direction of the cloth 1 via the receiving hit 6.

``Example'' A rectangular cylindrical outer case 3 is supported on the machine frame 7, a dust hopper 3' is integrally provided at the lower end of the outer case 3, and a plurality of dust hoppers are arranged vertically and horizontally inside the case 3. A cylindrical cloth 1 is hung vertically and its lower end is opened to a partition plate 8. Further, a dust-containing gas inlet 9 is provided at the lower part of the outer case 3, and a clean gas outlet 10 is provided at the upper part to form a bag filter. The machine frame 7 is provided with a reciprocating rotating crank 4, a reciprocating rotating spindle 5 of the crank 4 penetrates inside the outer case 3, the tip thereof protrudes outside the outer case 3, and a downward swinging shaft is provided in the protruding portion. An arm 11 is provided. The reciprocating pivot shaft 5 is horizontally supported at the intermediate portion of the adjacent cloths 1, 1, and is parallel to the reciprocating pivot shaft 5'.
are installed on both sides of the cloth 1, a downward swinging arm 11 is hung from one end, and these swinging arms 11, 11 are connected by a connecting rod 12 (FIG. 4). The above-mentioned cloth 1 is attached to each of the rotation shafts 5, 5'.
Side hitting tools 2, 2 with U-shaped bent rods on both outsides of the
The striking tools 2, 2 are fixed in the rotational direction on both upper and lower sides of the rotational support shafts 5, 5', respectively. The tips of the striking tools 2, 2 are connected to the receiving rods 6 provided on both outsides of the cloth 1 at the intermediate position of the reciprocating stroke of the crank 4, that is, at the rapid movement position.
6, impact strikes are performed alternately on both the upper and lower sides of the pivot shafts 5 and 5'.
The receiving rod 6 is formed of a strip, round steel, etc., and is attached to the fabric 1 in the vertical direction with a string of a fixture 6'. The reference numeral 13 in the figure is the motor for driving the crank 4, 14 is the reciprocating rod of the crank 4, and 1
5 is a bearing for the reciprocating rotation shafts 5, 5', 16 is a manhole, and 17 is a dust conveyor screw conveyor.

"Effect" Since the present invention is constructed as described above, the side surface of the cylindrical cloth 1 inside the outer case 3 is intermittently struck by the striking tool 2 through one end of the striking rod 6, and receives a strong impact. ,
As a result, the entire cylindrical cloth 1 swings from side to side via the striking rod 6, which not only allows the adhering dust inside to be quickly and reliably separated and dropped from the top to the bottom, but also prevents damage to the cloth 1. It is possible.

Furthermore, at the rapid movement position in the middle of the reciprocating stroke of the reciprocating rotating crank 4, the rotating support shaft 5,
Since the striking tool 2 on 5' is formed so as to collide with the receiving rod 6, the striking tool 2 moves rapidly during striking due to the reciprocating motion of the crank 4, so that the striking is performed with an impact, and relatively small A strong impact is applied to the cylindrical cloth 1 by the driving force through the striking rod 6, and the dust removal function can be improved.

[Brief explanation of the drawing]

Figure 1 is a front view showing the automatic dust removal device for a combustion gas dust collector of the present invention, Figure 2 is an overall front view, Figure 3 is a side view of Figure 2, and Figure 4 is a cross-sectional plan view. be. 1... Tubular cloth, 2... Hitting tool, 3... Outer box,
4... Reciprocating rotating crank, 5, 5'... Support shaft, 6
...Ukekaku.

Claims (1)

[Scope of utility model registration request] In a bag filter, in which a plurality of cylindrical cloths are hung inside an outer case which is integrally connected to a dust hopper at the lower end, an inlet for dust-containing gas is provided at the lower part of the outer case, and an outlet for clean gas is provided at the upper part. , a receiving rod is attached to the outside of the cylindrical cloth in the vertical direction, and a reciprocating pivot is arranged between the cylindrical cloth, and a striking tool is fixed on the pivot, so as to A reciprocating crank is disposed on the outside of the outer case to enable one end of the receiving rod to be struck with a striking tool, and further to rotate the pivoting shaft reciprocally around its central axis; Automatic dust removal device for a combustion gas dust collector, the device being formed so that the striking tool on the pivot shaft collides with the striking rod at a rapid movement position midway through the reciprocating stroke of the reciprocating crank. .