JPS6335791Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a briquetting machine for briquetting powder and granular materials.

Conventional briquette machines only have a pair of briquette rolls installed downstream of the screw feeder, and in order to increase the density of briquettes, Rotate at rotational speed. () Increase roll compression ratio. As a result of the above (), the production volume per briquetting machine decreases. Due to the above (), there was a problem that the briquetting roll wore out quickly after about several thousand hours.

This proposal addresses the above-mentioned problems by arranging two sets of briquette rolls, each set being a pair, in two stages, one above the other, and rotating each of the upper and lower briquette rolls in synchrony. In a briquetting machine that performs forming in two stages, a pillow-shaped matrix is provided for each briquetting roll in the first stage located above and each briquetting roll in the second stage located below, and these briquetting rolls are made to have the same diameter. A briquette machine characterized in that the briquette rolls in the first stage arranged above perform primary compression molding, and the briquette rolls in the second stage arranged below perform final compression molding, respectively. The object thereof is to provide an improved briquetting machine which can produce dense briquettes without reducing production and without prematurely wearing out the briquette rolls.

The briquette machine of the present invention has two sets of briquette rolls, each set of which is a pair, arranged in two stages, one above the other, and the briquette rolls of the same upper and lower parts rotate in synchrony, so that briquette forming can be carried out in two stages. In a briquetting machine used in stages, each briquetting roll of the first stage arranged above and each briquetting roll of the second stage arranged below is provided with a pillow-type matrix, and these briquetting rolls are made to have the same diameter, and The first compression molding is performed by the first stage briquette rolls located above, and the final compression molding is performed by the second stage briquette rolls located below, thereby increasing the density of the briquettes. There is no need to reduce the rotational speed of the briquette roll or increase the roll compression ratio when trying to process briquettes, and it is possible to produce dense briquettes without reducing production or prematurely wearing out the briquette roll. can be obtained. Moreover, since the second-stage briquette roll disposed below has a finish compression molding function, the surface of the briquette can be finished neatly, and its commercial value can be increased.

Next, the proposed briquetting machine is shown in Figures 1 to 6.
To explain with one embodiment shown in the figure, 1 in FIG.
Screw feeder that presses in powder and granules, first,
2 and 2 in Figures 3 and 4 compress the powder and granules press-fitted from the screw feeder 1 into the primary compression molding state on the left side of Figure 2 using pillow-type master molds 2a provided in two rows on the outer peripheral surface. The first stage briquette troll,
3 and 3 in Figures 1, 5, and 6 are the plate-shaped primary compression molded products discharged from between the briquette rolls 2 and 2 by the pillow-type master molds 3a provided in two rows on the outer peripheral surface. In the second stage briquetting roll that performs compression molding to the secondary compression molding state (finish compression molding state), the first stage briquetting rolls 2, 2 and the second stage briquetting rolls 3, 3 are synchronized in the direction of the arrow. It is now being rotated.

Further, other embodiments of the first and second stage briquetting rolls 2 and 3 are shown in FIGS. 7 to 11. That is,
2 and 2 in FIGS. 8 and 9 compress the powder and granules press-fitted from the screw feeder 1 into the primary compression molding state on the left side of FIG. The first-stage briquetting roll, 3 and 3 in Figs. 10 and 11, has a smooth outer circumferential surface and transfers the plate-shaped primary compression molded product discharged from between the briquette rolls 2 and 2 to the secondary briquetting roll on the right side of Fig. 7. The second step is compression molded to a compression molded state (finish compression molded state).
In the briquette rolls of the stages, the first stage briquette rolls 2, 2 and the second stage briquette rolls 3, 3 are rotated in synchronism in the direction of the arrow.

Next, the operation of the briquetting machine will be explained.
The powder and granules are press-fitted between the briquette rolls 2 and 2 by the screw feeder 1, forming a connection between the briquettes 4a ₁ and the ribs 4b ₁ that have been subjected to primary compression molding, and then charged between the briquette rolls 3 and 3. The briquette 4a ₂ that has been subjected to secondary compression molding _{(finish compression molding) is connected to the rib 4b 2, and finally the rib 4b 2 is} cut and separated by a divider (not shown) or the like to form a product.

[Brief explanation of the drawing]

Fig. 1 is a side view showing an embodiment of the briquetting machine according to the present invention, Fig. 2 shows the state of primary compression molding by the first stage briquetting roll shown in Figs. 3 and 4, and the second stage briquette shown in Figs. 5 and 6. Fig. 3 is a side view showing an example of the first stage briquetting roll, Fig. 4 is a front view thereof, and Fig. 5 is a side view showing an example of the second stage briquetting roll. , FIG. 6 is a front view thereof, and FIG. 7 is a side view showing the primary compression molding state by the first stage briquetting roll in FIGS. 8 and 9, and the final compression molding state by the second stage briquetting roll in FIGS. 10 and 11. Fig. 8 is a side view showing another example of the first stage briquetting roll, Fig. 9 is a front view thereof, Fig. 10 is a side view showing another example of the second stage briquetting roll, and Fig. 11 is a side view showing another example of the first stage briquetting roll. FIG. 2,2... 1st stage briquette troll, 3,3
...Second stage briquette troll.

Claims (1)

[Scope of utility model registration request] In a briquette machine that performs briquette forming in two stages, two sets of briquette rolls, each set consisting of a pair, are arranged in upper and lower stages, and the upper and lower briquette rolls are rotated in synchrony to form briquettes in two stages. A pillow-shaped matrix is provided on each briquette roll of the first stage arranged and each briquette roll of the second stage arranged below, and these briquette rolls are made to have the same diameter, and the first stage arranged above. A briquette machine characterized in that primary compression molding is performed by each of the briquette rolls, and final compression molding is performed by each of the second stage briquette rolls disposed below.